Sun Bicycles EZ-1 User manual

Notice:
This bicycle is partially assembled. It is intended to be sold in fully assembled and fully adjusted condition.
Final assembly and adjustment are to be performed by your SUN BICYCLE dealer.
TABLE OF CONTENTS
General Rules...................1
Night Riding.....................1
Recumbent Riding Tips...2
Fitting Your Recumbent..3
Assembly....................4-11
EZ Rider .........................12
EZ Speedster ...................13
EZ-3 USX.....................14
Maintenance.............15-19
Limited Warranty........20-21
Specifications.............22-27
EST.
1971
BICYCLESBI CYCLESBICYCLESBI CYCLES
EZ-Series Owners Manual

RECUMBENT SAFETY AND RIDING TIPS
General Rules for Safe Recumbent Riding
1. Always wear a CPSC approved helmet and some form of eye protection.
2. Always ride with a rear view mirror attached to your helmet or mounted on the recumbent.
3. Obey all traffic rules and regulations, signs and signals.
4. Ride on the side of the road, going in the same direction as the traffic and in single file.
5. Use proper hand signals when turning or stopping.
6. Be alert at all times, especially watch for cars pulling out into traffic or for opening doors.
7. Inspect your Sun Recumbent before every ride. Make sure all nuts and bolts are securely tightened. Check your brakes by applying
them and rock your Sun Recumbent forward and back to make sure they are engaging properly. Check your tires for proper air pressure
as indicated on the sidewall of the tires. Make sure the quick release levers on wheels and seat are secure. Also check for any
other possible mechanical problems.
9. Do not "stunt ride" or hitch a ride on other vehicles.
10. Do not ride carelessly.
11. Use extreme caution when riding in wet, icy or otherwise hazardous conditions.
WARNING:J&B Importers, Inc. is not responsible for accidents resulting from failure to comply with all bicycling safety laws. Contact your
local authorities for more specific information about such laws.
Night Riding Tips
1. Your Sun Recumbent is equipped with front, rear, wheel and pedal reflectors. They should be kept clean at all times, and never be
removed from your recumbent.
2. Always use an appropriate lighting system when riding at night.
3. Ride with extreme caution. Be alert for cars, pedestrians, runners and other bicyclists. Ride defensively and watch for road hazards.
4. Wear light colored clothing and use reflective tape on clothing or helmets to help make you more visible at night.
WARNING:Reflectors alone are not adequate for night visibility. Use a high quality front and rear lighting system for greater visibility.
Page 1

Wet Weather Caution
When rims and brakes are wet due to muddy, wet or icy road conditions the distance needed to stop safely increases. You must, therefore,
anticipate the additional distance needed to stop in such circumstances. Reduce your speed and take corners slowly and carefully. Hard appli-
cation of the brakes on wet or icy pavement (or on loose gravel or debris) can cause the wheel(s) to lock up and skid, resulting in possible
loss of control. Slowly apply brakes in a gradual, controlled manner to avoid skidding or loss of control.
Recumbent Riding Tips
There are some unique features to be aware of that will help you enjoy riding your Sun Recumbent. You may find it helpful to practice riding
in an open area, such as a paved, empty parking lot or a traffic-free road. Before riding your Sun Recumbent, please carefully read this
manual. This will enable you to familiarize yourself with the mechanical operations.
1. Relax the upper body.
2. Do not pull on the handlebars or tense the shoulders as this leads to over-steering the recumbent.
3. Ride with relaxed pressure on the handlebars.
4. When starting to ride, be sure the recumbent is in a low gear.
5. Get comfortable in the seat, and place both feet on the ground (see Seat Installation, Removal and Adjustment on page-10).
6. While sitting comfortably on your Sun Recumbent, with both feet on the ground, try propelling the recumbent slowly with your feet on
the ground. Like walking; left, right, left, right... while gently steering a little to the left and right. Keep walking the recumbent with your
feet until you can pick both feet up off the ground an inch and be able to balance yourself and steer comfortably. When you feel comfort
able, then you can try pedalling.
7. Stabilize the recumbent by applying the brake, put one of your feet on the pedal and back pedal until the crank is at the top in a vertical
position.
8. With firm pressure, push on the pedal; lift the other foot off the ground, as you release the brake and place the other foot on the other
pedal.
9. Lean back into the seatback and pedal confidently in an appropriate gear. Propel yourself at a safe and reasonable speed.
10. When riding on level ground or going downhill, lean back and relax. Up hill it sometimes helps to lean forward a little.
11. Before coming to a stop, gear down (while spinning the pedals in a forward motion); this will enable you to start again in a low gear.
Page 2

Recumbent Riding Tips (continued)
Your body may require some adjustment to the riding position and muscle groups used that the Sun Recumbent promotes. This is natural;
adaptation to the new position will vary, depending on individual physiology and exercise regimes.
1. Take short rides on level or gently sloping terrain for a few days before attempting long distances or more aggressive riding.
2. Downshift and maintain a high RPM when climbing hills. Failure to do so can lead to possible knee irritation or injury.
3. If you feel tight or sore in some areas, you will benefit from a warm up and stretching routine before and after riding.
Fitting Your Sun Recumbent.
Your Sun Recumbent will accommodate most body sizes. In order to ride comfortably and safely, you
should adjust the Sun Recumbent to fit your body.
There are 3 adjustments that can be made to customize the fit of your Sun Recumbent:
a. Seat distance from the pedals
b. Seat back angle
c. Handlebar height and angle
1. When seated, your knee should be just slightly bent when the forward foot is in the farthest posi-
tion. This is adjusted by moving the seat along the length of the frame, moving you closer or
farther away from the pedals (see Seat Installation, Removal and Adjustment on page-10). For full
power, leg extension and the least stress on your knees, double check your seat to pedal position in
the following way: Try to touch the heel of your shoe to the pedal with your knee locked. You
should barely be able to reach the flat part of the pedal. Now when you put the ball of your foot on
the pedal. You should have the proper bend in your knees. (Fig. 3.1)
2. The handlebars should be at a height that is most comfortable for your hands and arms and that allows knee clearance when pedaling.
The handlebars are adjusted by raising or lowering the stem and adjusting the angle. (see Handlebar Adjustment and Alignment page-10).
Page 3
(Fig. 3.1)

ASSEMBLY
Your Sun Recumbent is 90% assembled at the factory, therefore is easily set up in a few minutes.
Tools Needed for Assembly (Not Included)
2, 4, 5 and 6 mm Hex wrench
15 mm open-ended wrench
Adjustable wrench
Flat blade screwdriver
Philips head screwdriver
Scissors/Diagonal Cutters
Unpack Carefully as Follows:
1. Carefully remove the recumbent by lifting it straight out of the box. Be careful not to scratch the recumbent or
yourself on the carton staples.
2. Carefully remove the packing material from the frame.
3. Carefully clip the plastic ties that secure the handle bar and front wheel to the recumbent during shipping.
4. Check and make sure parts box is included.
You are now ready to begin assembly. Please read carefully the following directions.
Handlebar and Front Wheel Installation
1. Loosen the 2 stem bolts with a 6mm hex wrench and position the stem down parallel to the handlebar. Tighten the
top stem bolt completely, then tighten the lower bolt securely (Fig. 4.1)
2. Apply a light coat of grease to the expander wedge.
3. Place the bottom end of the stem into the fork. Be sure that the minimum insertion line is not exposed. Tighten the
expander bolt with a 6mm hex wrench.
4. Remove the spacer from the front fork.
5. Open the front wheel quick-release lever. Loosen the QR nut a few turns.
6. Seat the wheel axle in the slot on the front fork dropouts. Make sure it is fully seated in the slot. Traditionally the
QR lever is on the left hand side from the seated position. (Fig. 4.2)
7. Make sure the front wheel is centered property between the fork blades.
Notice:
This recumbent is partially assembled. It is intended
to be sold in a fully assembled and fully adjusted
condition. Final assembly and adjustment are to be
performed by your SUN BICYCLES dealer..
Page 4
(Fig. 4.1)
(Fig. 4.2)

Handlebar and Front Wheel Installation (continued)
8. Tighten the nut and close the quick-release lever with firm pressure (see Quick Release Lever Operations on page
16, for full operation instructions).
9. Align the handlebars perpendicular to the front wheel by standing with the front wheel between your legs. Look at
the alignment of the handlebars in relation to the front wheel. Then fully tighten the expander bolt. (Fig. 5.1)
10. To check for tightness, hold the front wheel between your legs and try to turn the handlebars.
11. Check for proper installation of the front wheel before each ride.
12. Be sure the quick-release lever is in the closed position.
13. Lift the recumbent off the ground and hit the wheel sharply from above to confirm that it is firmly attached.
Front Linear Pull Brake Installation / Front and Rear Linear Pull Brake Adjustment
1. Place brake cable nipple firmly into nipple slot on lever. (Fig. 5.2) Pass brake inner cable through grooves into
lever bracket.
2. Check brake pads, make sure they are aligned correctly on the rim, and there is a gap of 1mm between the top of
the rim and the top of the pad. Hold each pad against the rim (one at a time) & tighten mounting nut securely.
(Fig. 5.3)
3. Insert cable through cable guide pipe, cable protector and anchor-bolt. Slot cable guide pipe into holder and fit pro-
tector over guide pipe end. Set cable in anchor bolt so that combined pad rim clearance (A+B) is 2mm, then tight
en anchor bolt. (If clearance is not 1mm on each side, it will be balanced out in step 4). Crimp end cap onto cable
end. (Fig. 5.4)
4. Balance brake arms by turning spring-tension adjusters. Depress brake lever a few times while checking to see that
tension is equal for both arms. Pad/rim contact should occur at the same time on each side. Clearance should be
1mm on each side. Don't set tension too high. (Fig. 5.5)
Notes
1. Spring tension adjusters require a 2mm hex wrench. All other brake bolts use a 5mm hex wrench.
2. Pad/rim clearance can be further adjusted by turning the brake lever-adjusting barrel. (Fig. 5.6)
Caution: Linear pull brakes must be used with linear pull brake levers. Linear pull brakes offer considerable braking
power with little leverage force, and require practice at low speeds before normal use. J&B Importers, Inc. is not
responsible for damage or injury as a result of improper use or installation.
Page 5
(Fig. 5.6)
(Fig. 5.5)
(Fig. 5.4)
(Fig. 5.1)
(Fig. 5.3)
(Fig. 5.2)

SPECIAL CAUTION: Braking in wet weather conditions:
In wet weather conditions, you will need to increase the distance needed to stop safely. Anticipate the extra distance
you will need, ride slowly and carefully. Squeeze your brake levers slowly and with gradual pressure to avoid skidding
or loss of control. The same caution should be observed on loose gravel or dirt. Failure to be cautious during wet or
other severe road conditions may result in a serious accident.
Trike Rear Unit and Wheel Installation
1. Install loosely the two carriage bolts with their nuts and washers, to the two holes in the end of the trike frame stay.
The heads of the bolts are on the inside of the frame.
2. Slide the arms of assembled rear unit between rear frame stays, up to and between carriage bolt heads and frame
slot. Finger tighten nuts. (Fig 6.1)
3. Both wheels are the same. The hub flanges have three holes that fit the studs on the axle flange (Fig 6.2).
Install the drive wheel first, (right side). Add axle washer on the outside and tighten locking nut securely.
4. Now put the second wheel on left side. This wheel is the idler. First slip on the spacer (Fig 6.3), then the wheel,
followed by a washer and the locking nut until it touches the bearing. Now loosen 1/2 turn.
Do Not Over Tighten. Leave Some Side-To-Side Play (About 1 to 2mm).
Warning: Very Important: It is critical for the protection of the bearings, that you inform your customer that the idler
wheel requires a slight amount of play in order to prevent bearing damage.
5. Thread small 50 Link chain over welded sprocket on the drive hub unit and over the fixed sprocket on the rear
axle (Fig 6.4). Connect the connecting link, make sure both sprockets are aligned. If they need alignment, loosen
set screw on fixed sprocket, re-align, make sure axle key is positioned under set screw then re-tighten set screw.
6. Slowly pull unit towards end of trike until chain slack is taken up.
7. Tighten the two forward carriage bolts. (Fig 6.1)
8. Turn chainwheel and see if chain runs smoothly with no binding or excessive noise. If not, loosen bolts, move unit
slightly forward. Tighten bolts and check chain function again.
5. If chain now runs O.K. tighten all four carriage bolts securely, taking care that the unit does not shift.
Page 6
(Fig. 6.1)
(Fig. 6.2)
(Fig. 6.3)
(Fig. 6.4)

TRIKE CAUTIONS: A trikes widest point is behind you, if the front goes by an obstacle there is no guarantee that the
rear wheels will also clear. When riding, you must give clearance to the edge of the road or sidewalk. Stay clear of pot-
holes and be aware that you can lose control if any wheels should drop into a hole.
A trike does not handle like a bicycle, therefore, you cannot lean into a turn. All wheels must be on the ground at all
times. Do not make sudden changes of direction, you could unbalance the trike and have an accident.
When beginning to ride, stay at a slow speed. You must acclimate yourself to handling and turning this three wheeler. If
you feel insecure, slow down, and proceed at a slower pace. With practice, you will get comfortable riding and stop-
ping.
The rear wheels on the EZ-3SX Recumbent trike only have braking on one wheel (the right hand or “drive” wheel)
Always use both hand brakes when stopping . If only the rear brake is applied, the trike could pull to the right and you
could loose control.If the drive wheel looses traction in a turning situation, with only the rear brake applied, your trike
will not stop and you could loose control.
The trike is made for one person only and the basket is not built to hold a passenger.
Weight capacity is 300 lbs. This trike is built for manual (non-motorized) use.
Rear Disc Brake Set-up and Adjustment (if equipped)
1. Lightly lubricate cable fixing bolt to prevent stripping the threads.
2. Loosen adjusting barrel and lock nut on the right hand brake lever so that the grooves on the adjusting barrel, lock
nut, and lever are aligned. Lightly lubricate cable with clear or white grease. Secure cable end into lever. Guide
cable through grooves, tighten the lock nut against the top of the adjusting barrel and screw the adjusting barrel
fully into the lever body. Slide cable through housing. Guide housing through cable guides on frame. Guide cable
through cable anchor. Cable should be between the cable anchor washer and the groove on the caliper action arm.
Snug cable fixing bolt
3. Tension cable without compressing caliper action arm. Cable should be tight with no sag. Secure cable fixing bolt
tightly. Squeeze lever firmly and hold for a few seconds. Re-tension the cable and tightly secure the cable fixing
bolt. Cut excess cable leaving approximately 2" (5cm) length. Install cable end cap and crimp tightly.
Page 7
(Fig. 7.1)
(Fig. 7.2)

Rear Disc Brake Set-up and Adjustment (if equipped) Continued
4. Spin hub in forward rotating direction. Rotor should run freely between brake pads. Some drag is normal prior to
first usage. Pads will wear down gradually with normal usage. As this occurs, loosen the cable fixing bolt and
retension the cable. Secure cable fixing bolt tightly before use.
5. If the rotor is contacting either brake pad, try the following: 1- realigning the caliper by loosening the mounting
bolts slightly and repositioning the caliper (side to side) so the rotor is in between the brake pads. Retighten
mounting bolts. [Locking torque 60 +/-5 kg-cm] 2- Using a 2mm allen wrench, loosen the nylock screw on the
top inside of the caliper shell. Using a 5mm allen wrench, slightly turn the pad adjusting plate on the backside of
the caliper. A clockwise (right) turn will decrease the clearance of the pads. A counterclockwise (left) turn will
increase the clearance of the pads. Retighten the nylock screw. [Locking torque 10-15 kg-cm]
Note: After the first few rides, re-tension the brake cable to take up the initial cable stretch that occurs. Do not use the
brake lever adjusting barrels. This will cause the brake modulation to change, resulting in decreased braking action.
Disc Brake Pad Replacement
Tools required (not included):
Needle-Nose Pliers
2mm and 5mm allen wrench
1. Check the brake pads for wear. At 0.5mm or less, the pads are worn and must be replaced for continued safe
braking.
2. Remove caliper from the frame.
3. Using a needle-nose pliers, clamp the tab of the outside brake pad [black] and pull towards the inside pad and
down to release. Loosen the nylock screw on the caliper. Using a 5mm allen wrench, remove the pad adjusting
plate. Push the blue pad out through the back of the caliper. Dispose of the old pads properly.
4. Insert the outside [black] pad into the caliper and align tab with slot. Insert the new blue pad through the caliper
and align tab with slot. Replace the pad adjusting plate, threading it into the caliper until the back of the tab
contacts the back of the slot. There should be approximately 3mm of space. Tighten the nylock screw securely.
5. Re-install caliper onto frame. Check for proper alignment.
Retighten mounting bolts. (Locking torque 60 +/-5 kg-cm).
6. Adjust as needed per installation instructions (See Rear Disc Brake Adjustment page-7).
Page 8
(Fig. 8.1)

Disc Brake User Maintenance Tips
1. The spring load of the action arm should be fast and smooth. Be sure to inspect brake cable prior to installation for
any broken wires. Replace with a high-quality cable if necessary. Make sure cable is lubricated before it is inserted
into the housing.
2. The caliper floating mechanism can be checked by moving the installed caliper laterally (side to side). There
should be 2mm of play to either side. If okay, re-install wheel. If not, please consult your dealer for further service.
SPECIAL CAUTION: Braking in wet weather conditions:
In wet weather conditions, you will need to increase the distance needed to stop safely. Anticipate the extra distance
you will need, ride slowly and carefully. Squeeze your brake levers slowly and with gradual pressure to avoid skidding
or loss of control. The same caution should be observed on loose gravel or dirt. Failure to be cautious during wet or
other severe road conditions may result in a serious accident.
WARNING: The rear wheels on the EZ-3SX Recumbent trike only have breaking on one wheel (the right hand or
“drive” wheel) Always use both hand brakes when stopping . If only the rear brake is applied, the trike could pull to the
right and you could loose control.If the drive wheel looses traction in a turning situation, with only the rear brake
applied, your trike will not stop and you could loose control.
Pedal Installation
The pedals are stamped "R" and "L" on the threaded end of the pedal.
1. Put a small amount of grease or lubricant on the pedal threads.
2. Screw in the right ("R") pedal (right side of recumbent with chain) by turning it clockwise as you face the recum-
bent.
3. Screw in the left ("L") pedal by turning it counter-clockwise as you face the recumbent.
4. Tighten both pedals with a 15 mm open-ended wrench.
WARNING: Make sure each pedal is tightened securely. Failure to do so could result in a serious accident.
Note: Pedals and crank arm bolts should be re-tightened after the first 25 miles.
Page 9
(Fig. 9.1)

Seat Installation, Removal and Adjustment
Installation
1. Install seat base onto top rail of Sun Recumbent.
2. Install quick release bolts below seat rail. (Fig. 10.1)
5. Install seat back struts onto the rear of the seat back frame (Fig. 10.2) .Install lower strut to eyelets of the rear
frame drop outs (Fig. 10.3) or on rear unit mounting tabs on trike (Fig. 10.4) and install pins.
Adjustment of seat base fore-aft position
1. Loosen the two quick release pins under the seat. (Fig. 10.1)
2. Position seat in the following manor: When seated, your knee should be fully extended when your heel is in the
farthest position on the pedal.
3. Tighten the two quick release pins under the seat.
Adjustment of backrest angle
1. Remove pins from rear struts. (Fig. 10.2)
2. Position backrest at the desired angle. (A more vertical seat back angle will feel more familiar until you get used to
the recumbent seating position.)
3. Re-install pins.
Handlebar Adjustment and Alignment
The handlebars may be raised or lowered for best arm comfort. Usually, the best fit is when knees just clear the
handlebars while pedaling.
1. Using a 6 mm hex wrench, loosen the expander bolt.
2. Raise or lower the handlebars according to your needs. Your arms should be in a relaxed, comfortable position and
your knees should clear the bars. Be sure the maximum insertion line marked on the stem is not visible.
3. Align the handlebars perpendicular to the front wheel. To do this, stand with the front wheel between your legs and
look at the alignment of the handlebars in relation to the front wheel.
4. Tighten the expander bolt.
5. To check the tightness, hold the front wheel between your legs and try to turn the handlebars with your hands.
If there is any slippage, tighten the bolt more securely.
Page 10
(Fig. 10.1)
(Fig. 10.2)
(Fig. 10.4)
(Fig. 10.5)
(Fig.10.3)

Derailleur Adjustment
IMPORTANT: It is advised that you have a professional bicycle mechanic adjust the front or rear derailleur.
Rear Derailleur Adjustment
Adjustment to the rear derailleur can be done while turning the cranks, in a stationary position, while the rear wheel(s)
is elevated off the ground. Always make small adjustments first, then test while you rotate the crank and turn the
shifter.
Before adjusting the derailleur, be sure the chain is clean and well lubricated. Also, lubricate the shift cables and
inspect for any kinks. Dirty, dry or kinked cables will cause shifting hesitation or failure. Stiff links in the chain will
also cause shifting failure.
1. Top adjustment. Turn the top adjustment screw to position the guide pulley below the outer line of the smallest
sprocket when looking from the rear. (Fig. 11.1)
2. Low adjustment. Turn the low adjustment screw so that the guide pulley moves to a position directly in line with
the largest sprocket. (Fig. 11.2)
3. How to use the B-tension adjustment screw.Mount the chain on the smallest chain ring (on the crank) and the
largest sprocket (on the rear cluster), and turn crank arm backward. Then turn the b-tension adjustment screw to
adjust the guide pulley as close to the sprocket as possible but not so close that it touches. Next, set the chain to the
smallest sprocket and repeat the above to make sure that the pulley does not touch the sprocket. (Fig. 11.3)
4. SIS Adjustment.
(a) Operate the shifting lever to move the chain from the top gear to the second gear. If the chain will not move to
the 2nd gear, turn the outer casing adjustment barrel counter clockwise to increase the tension. If the chain moves
past the 2nd gear , decrease the tension by turning the adjustment barrel clockwise. (Fig. 11.4)
(b) Next with the chain on the 2nd gear, increase the inner cable tension by turning the adjustment barrel counter
clockwise while turning the crank arm forward. Stop turning the outer casing adjustment barrel just before the
chain makes noise against the 3rd gear. This completes the adjustment. (Fig. 11.5)
Note: For best SIS performance, periodically lubricate all power-transmission parts.
SPECIAL CAUTION:The adjusting barrel is for fine adjustments to the derailleur. If the barrel is turned too far counter-clockwise
it will screw out of its threads creating a hazardous condition. the adjusting barrel must be screwed in until a maximum of 3 threads
are showing. Removing the derailleur cable slack at the rear derailleur cable anchor makes “Coarse” adjustments to the system.
Page 11
(Fig. 11.1)
(Fig. 11.2)
(Fig. 11.3)
(Fig. 11.4)
(Fig. 11.5)

Page 12
Fig. 16.1
Fig. 16.2
Fig. 16.3
Fig. 16.3a
Fig. 16.4
Front Brake Installation (If Equipped With Disc Brakes)
1. Remove rotor from package, check for warpage by placing on a flat surface and examine.
2. Assemble rotor to front hub, arrow toward counter clockwise direction of rotation.
3. Install 6 Torx Screws (T25), tighten 55in-lbs (Nm). See reflector parts package.
4. Install caliper on left side of fork brake mount attachment with 2-5mm hex bolts.
5. Connect brake cable to front caliper and tighten. Leave 2-3” of wire at end. For adjustment see Page 5.
Rotor Adjustment - Front Wheel (If Equipped With Disc Brakes)
1. Loosen 2 -5mm hex bolts. Align caliper. Keep 2.0mm space between rotor and brake pads. Retighten bolts,
then spin wheel to see if the pads make contact with rotor. If so, readjust distance to more than the required
2.0mm spacing.
Rear Wheel Assembly & Adjustments (If Equipped With Disc Brakes)
1. Similar to front wheel, except care must be taken to ensure that the chain is wrapped around the rear cog set.
Then, adjust caliper spacing as per front brake adjustment. See pages 7 & 8.
Chain Installation - See Fig. 16.1
1. Install top chain under top roller and lower chain on top of lower roller as illustrated in Fig.16.1
Pedal Installation (Models Equipped with FSA Crank)
1. Install included washers on pedals. (See Fig. 16.2)
Seat Installation
1. Install half moon shaped spacers on thru bolts as shown. (Fig. 16.3 & 16.3a)
2. Seat positioning. See page 10 and (Fig. 16.4 and 16.4a) Fig. 16.4a
THIS MODEL IS EQUIPPED WITH REAR SUSPENSION
Basic assembly and adjustments are similar to other recumbent
models (Pages 4 - 11), except as noted below for this model.

Page 13
Handlebar Installation
1. Install stem in front fork and align to keep the upper handlebar unit aligned with
the front wheel. Tighten stem securely. (See Fig. 17.1)
2. Place upper handlebar unit on stem and insert hollow cylindrical spacer thru both
parts. Then, insert quick release assembly and align to comfort angle and tighten
securely. (See FIg. 17.1a)
3. Adjust handlebar to comfort angle by loosening stem bolt and
tightening as necessary.
Chain Installation
1. Install chain as per Fig 17.2 taking care to make sure that the chain exits the lower
pulley of the rear derailleur and crosses over the top of the roller. (See Fig. 17.2a)
Fig. 17.1
Fig. 17.1a
Fig. 17.2
Fig. 17.2a
Basic assembly and adjustments are
similar to other recumbent models
(Pages 4 - 11), except as noted below
for this model.

Page 14
(Fig. 18.2)
(Fig. 18.3)
Basic assembly and adjustments are similar
to other recumbent models (Pages 4 - 11),
except as noted below for this model.
(Fig. 18.1)
Frame Assembly
1. Remove trike from box. Make sure parts box is complete before starting assembly.
2. Loosen 6mm Allen Bolts.
3. Swing out frame at pivot point. (See Fig. 18.1) then retighten 6mm Allen Bolts.
4. Join rear axle sections with 10 fixing screws and nuts (included with parts box) and
tighten with 5mm allen wrench.
Rear Wheel Assembly
1. Assemble rear wheel with rotors similiar to front wheel installation pg.10
Rear Brake Assembly
1. See brake assembly pg. 7-8 . Note: make sure that rear brake cables are installed
correctly by length. Cut excess cable leaving approximately 2''(5cm) length.
Install cable end cap and crimp tightly.
Handle Bar Installation
1. Slide handle bars into handle bar tie rod ends, keep evenly spaced, then tighten.
(See Fig. 18.2)
2. Assemble control arm to fork and steering plate. (See Fig. 18.3) The correct
orientation of the control arm is necessary for proper clearance and turning radius. Insert
bolts/nuts on both ends and tighten, taking care to snug securely and not overtighten.
Front Brake Assembly
1. Route cable on the underside of frame and connect to right side of brake caliper.
Leave 2-3” at end of cable. (See Fig. 18.3)

CARE AND MAINTENANCE
WARNING: Do not ride your Sun Recumbent until both front and rear brakes have been checked and are functioning
properly. Keep all nuts, bolts and quick release levers well tightened. Lubricate cables occasionally to prevent binding.
Failure to do so may cause a malfunction, resulting in a serious or fatal accident. (See Front & Rear Brake Adjustment
page-5)
WARNING: Adjustment of the brake lever in too narrow a position may cause the lever to hit the handlebar before full
braking action is achieved. This is a dangerous situation. Recheck the brake lever position and make appropriate adjust-
ments before riding. Failure to do so may result in inadequate or loss of brake power, resulting in a serious or fatal
accident.
Quick Release Lever Operation
CAUTION: Never fasten a wheel to a frame by rotating the quick release lever as shown in the diagram on the left
(Fig. 12.1). Simply rotating the lever in a circular motion will not fasten the wheel to the frame. Detachment of the
wheel as a result of improper hub installation can result in serious bodily injury.
NOTES
If the quick release lever can be easily pushed to the CLOSE position, this means the clamping strength is insufficient.
Return the quick release lever to the position perpendicular to the recumbent frame. And again turn the adjusting nut
clockwise to increase the clamping strength. Push the quick release lever back to the CLOSE position. (Fig. 12.2)
If the clamping strength is adjusted too strong and the quick release lever cannot be pushed to the CLOSE position,
turn the adjusting nut in a counter-clockwise direction to reduce the clamping strength. When doing this, do not fully
release the adjuster nut. Turn it 1/8 of a revolution, and then try to push the lever to CLOSE, to set the maximum
clamping strength with which you can push the quick release lever to the CLOSE position. (Fig. 12.3)
Page 15
(Fig. 12.1)
(Fig. 12.2)
(Fig. 12.3)

POSITIONING OF THE QUICK RELEASE LEVER
For safety, the quick release lever should be along the recumbent frame when in the
CLOSE position.(Fig. 13.1)
REMOVING THE WHEEL
Move the quick release lever from CLOSE position to the OPEN position. Loosen the adjusting nut, and then remove
the wheel. (Fig. 13.2)
Quick Release Lever Operation (continued)
WARNING
THINGS TO CHECK BEFORE RIDING (Fig. 13.3)
1. Always check your quick release hubs before riding to make sure that the wheels are correctly installed on the
recumbent frame. This is especially important after you park your recumbent in a pubic place.
2. Make sure that the quick release levers are pushed fully to the CLOSE position (side of the lever with the
inscription "CLOSE" must be facing away from the wheel). As shown in the diagram, the lever must be lifted,
not rotated.
QUICK CHECK (Fig. 13.4)
Lift up the recumbent so that the wheel is off the ground, and give the top of the tire a few sharp downward blows as
shown in the diagram. The wheel should not be loose or come off. This check does not guarantee that the quick release
lever has received adequate tightening torque.
If you are uncertain as to whether the quick release is tightened correctly, repeat the installation procedure as explained
in “Quick Release Lever Operation on page-12.
Wheel Removal and Installation
Rear wheel removal (Bike)
1. Shift the rear derailleur into high gear (#7,small cog)
2. Release the rear brake cable by holding the rear brake shoes against the wheel rim and removing the guide pipe
from the holder on the brake arm. (Fig. 13.5)
3. Loosen quick release skewer.
Page 16
(Fig. 13.2)
(Fig. 13.1)
(Fig. 13.3)
(Fig. 13.4)
(Fig. 13.5)

Rear wheel removal (Bike) Continued
4. Pull the spring-loaded derailleur pulleys (and chain) towards the rear, while pulling the entire wheel out of the
frames axle slots (dropouts). (Fig. 14.1)
Rear wheel removal (Trike)
1. Loosen and remove axle nut. (Fig. 14.2)
Warning: Removal and installation of the rear wheel may cause misalignment of the rear derailleur. We recommend
your local Sun Bicycles dealer or bicycle mechanic do this procedure. Refer to Derailleur adjustment on page-7.
Also check rear brake adjustment refer to Brake Adjustments on page-5.
Rear wheel installation
Installation is the reverse of removal.
1. Position the rear derailleur in its high gear (small cog).
2. Insert the wheel into the dropouts, making sure to catch the chain on the small freewheel cog.
3. Push the wheel firmly into the dropouts to center.
4. Close the quick-release lever firmly. (See Quick Release Operation on page-12)
5. Reattach the rear brake cable and check for brake adjustment. (See Brake Adjustment on page-5)
Rear wheel installation (Trike)
1. Both wheels are the same. The hub flanges have three holes that fit the studs on the axle flange. Install the drive
wheel first, (right side). Add axle washer on the outside and tighten locking nut securely. (Fig. 14.3)
2. Now put the second wheel on left side. This wheel is the idler. First slip on the spacer, then the wheel, followed by
a washer and the locking nut until it touches the bearing. Now loosen 1/2 turn. Again Do Not Over Tighten.
Leave Some Play. (Fig. 14.4)
Warning: Very Important: It is critical for the protection of the bearings, that you inform your customer that the idler
wheel requires a slight amount of play in order to prevent bearing damage.
Page 17
(Fig. 14.1)
(Fig. 14.2)
(Fig. 14.3)
(Fig. 14.4)

Front Wheel Removal
1. Release the front brake cable by holding the front brake shoes against the wheel rim and
removing the guide pipe from the holder on the brake arm. (Fig. 15.1)
2. Open the quick-release lever and back the nut off a few turns to clear tabs on the fork.
3. Remove the wheel from the fork.
Front Wheel Installation
Installation is the reverse of removal.
1. Push the wheel firmly into the fork to center.
2. Close the quick-release lever firmly. (See Quick Release Operation on page-12)
3. Reattach the front brake cable and check for brake adjustment. (See Brake Adjustment on page-5)
General Tire and Wheel Maintenance
1. Maintain tire pressure at the value indicated on the sidewall of the tire. (It’s common that most recumbent tires will
lose 5 to 10 psi a week.)
2. Never ride your recumbent with under-inflated tires, as this will cause poor handling, excessive tire wear
or blowout.
3. Use a hand or foot pump to inflate tire to proper tire pressure.
4. Over inflation or an improperly mounted tire may cause a blowout.
5. If there are any irregular noises from wheels, or if the rims wobble while rotating, check and repair wheels
immediately.
6. Wheels should be checked regularly for spoke tightness, especially if ridden on rough roads. If the wheel does not
remain 'true' this indicates that the spokes are loose. We recommend that spoke adjustments be performed by a
professional bicycle mechanic.
WARNING: Avoid riding over curbs. Watch for and avoid potholes, gratings and other road hazards. Walk your recum-
bent over railroad tracks, stairs, ditches or other such rough conditions. Failure to do so may result in tire failure, loss
of control, or other mechanical failures and may result in a serious or fatal accident.
Page 18
(Fig. 15.1)