Rungu JUGGERNAUT 2020 User manual

V2.3 RUNGU Juggernaut User Manual –2020 model year
Copyright 2017 Standard Bearer Machines, LLC 1
rungu®juggernaut owners
manual
Congratulations on purchasing the Juggernaut
1
! Before you ride and make new tracks, please read the
following instructions carefully.
IMPORTANT- Standard Bearer Machines will not be liable for any damage or injury that may occur due
to operation of our Juggernauts. By using the Juggernaut, you are agreeing to Standard Bearer Machines
Terms and Conditions and the warnings and conditions of the Generic Bike Manual which are included
with other files in the USB key accompanying the Juggernaut.
1
As the owner, you agree and are bound by all sales and transfer conditions as defined in in “SBM Rungu Sales
Terms and Conditions US 2022.” Copies of these documents are available upon request by e-mailing
[email protected].

V2.3 RUNGU Juggernaut User Manual –2020 model year
Copyright 2017 Standard Bearer Machines, LLC 2
Contents
Parts identification........................................................................................................................................3
Unpacking and Assembly Instructions..........................................................................................................5
Tools required...........................................................................................................................................5
Unpacking and Assembly Instructions......................................................................................................6
Additional Installation Instructions –Mud Guards.................................................................................20
Additional Installation Instructions –Rungu Cargo Rack........................................................................25
Cautions and Safety ....................................................................................................................................31
General Cautions and Warnings .............................................................................................................31
Riding the Juggernaut .................................................................................................................................32
Juggernaut Operation Cautions ..............................................................................................................32
Inflating Tires –using Presta valve adapters ..........................................................................................32
Using the Presta “screw-on” valve adapters ......................................................................................33
Before you ride –Safety Check...............................................................................................................36
Using Derailleur (Gear) Shifters ..........................................................................................................39
Changing gears with the microSHIFT advent system..........................................................................39
Riding Safety ...........................................................................................................................................40
Adjusting the Front Suspension..............................................................................................................40
Using the parking brake switch...............................................................................................................41
Using the microSHIFT derailleur clutch...................................................................................................41
Rungu Juggernaut Maintenance, Care and Repair .....................................................................................42
Before Each Ride.....................................................................................................................................42
Securing your Juggernaut .......................................................................................................................42
After Each Ride........................................................................................................................................42
Chain Maintenance –Cleaning and Lubrication every 40 miles of hard use..........................................43
Rear wheel removal or replacement ......................................................................................................44
How to remove the rear wheel...........................................................................................................44
How to replace the rear wheel ...........................................................................................................47
Technical Information.................................................................................................................................50
Troubleshooting..........................................................................................................................................51
Getting more information...........................................................................................................................52

V2.3 RUNGU Juggernaut User Manual –2020 model year
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Parts identification
The following images show the names of various components on the Juggernaut

V2.3 RUNGU Juggernaut User Manual –2020 model year
Copyright 2017 Standard Bearer Machines, LLC 4

V2.3 RUNGU Juggernaut User Manual –2020 model year
Copyright 2017 Standard Bearer Machines, LLC 5
Unpacking and Assembly Instructions
Warning: Failure to follow instructions may lead to incomplete or faulty assembly that can result in
accidental rider injury or death.
Before you ride and make new tracks, please follow the assembly instructions carefully. The team at
Standard Bearer Machines recommends that you have the assembly performed by a qualified bike
mechanic.
Tools required
•2.5mm Hex wrench
•5mm Hex wrench
•6mm Hex wrench
•Adjustable wrench (not included)
Recommended: SATA 6-inch Professional Adjustable Wrench with Forged
Alloy Steel Body, Wide Jaw, and a Chrome Plated Finish - ST47202SC
•Tire inflation pump (not included)
Recommended: CYCPLUS Tire Inflator Portable Air Compressor 2600mAh
Smart Cordless Electric Air Pump for Car Tires, Motorcycle, Bike, Balls A7
•Bicycle Tire pressure gauge –presta valve (not included)
Recommended: Accu-Gage by Milton Presta Valve Bike Tire Pressure Gauge with
Bleeder Valve, for 0-15 PSI - ANSI Certified (PR15BX)
•Wire cutters or scissors (not included)
Recommended: IRWIN VISE-GRIP Diagonal Cutting Pliers, 6-Inch (2078306)

V2.3 RUNGU Juggernaut User Manual –2020 model year
Copyright 2017 Standard Bearer Machines, LLC 6
Unpacking and Assembly Instructions
Juggernaut comes in a cardboard carton. After you have removed the binding straps, remove the top
cover. If you intend to ship or return your Rungu, please keep all packing materials.
1. If you have purchased a model with a Rungu Cargo Rack or an optional Cargo Rack, remove the
rack and place it to one side.
2. Remove the accessory box(es) containing Quick Release Skewers, AC battery charger, tools,
Presta adapters, keys and pedals as well as other accessories that come with the specific model
you ordered.
Note: If you purchased a Juggernaut with the optional Cargo Rack, remove the rack first and place it to
the side.
3. Remove the two wheels from the carton and place them aside carefully to avoid damaging the
disc brake rotors.
4. Lift the frame and rear wheel from the carton and place the assembly on the floor gently so that
it stands upright as it was in the carton.
Accessory Box. May be
located elsewhere
inside the carton

V2.3 RUNGU Juggernaut User Manual –2020 model year
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5. Lift the frame and attached components from the carton.
CAUTION: THE JUGGERNAUT WITHOUT FRONT WHEELS WEIGHS 40 LBS (23 KG) USE TWO (2)
PEOPLE TO REMOVE THE JUGGERNAUT FROM THE PACKAGING TO AVOID INJURY
6. Use the 5mm hex wrench to loosen and remove the four bolts from the right side handlebar
clamp
7. Open the right-side handlebar clamp to allow placement of the right-side handlebar.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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8. Place the right-side handlebar in the clamp such that there’s a 1/8” gap between the handlebar
end stop and the side of the stem as seen from the front of the handlebar.
9. Replace the four bolts in the handlebar clamp and finger tighten.
10. From the front of the bike, align the handlebar by rotating it so the middle hash-mark (7th) lines
up with the upper inside edge of the stem as shown below.
CAUTION: FAILURE TO EXTEND THE HANDLEBAR AS SHOWN MAY RESULT IN WHEELS MAKING
CONTACT WITH FORKS, WHICH CAN LEAD TO FORK OR TIRE DAMAGE.
Upper inside edge
MIDDLE
HASHMARK

V2.3 RUNGU Juggernaut User Manual –2020 model year
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11. Fasten, the right-side retention bolts using a crossing pattern (shown below) of tightening the
upper handlebar retention screw and then bottom screw instead of tightening both top screws
and then the bottom screws for each clamp.
WARNING: TIGHTENING HANDLEBAR RETENTION SCREWS BEYOND 6NM (53 IN LBS.) OR
FAILING TO ALIGN THE SCREWS WITH THE THREADS IN THE STEM MAY STRIP THREADS IN
STEM LEADING TO INSUFFICIENT TIGHTENING OF THE HANDLEBAR. FAILURE TO TIGHTEN
HANDLEBAR SUFFICIENTLY MAY RESULT IN UNEXPECTED HANDLEBAR ROTATION THAT CAN
RESULT IN ACCIDENTAL RIDER INJURY OR DEATH.
12. Repeat steps 6 through 11 for the left-side handlebar.
13. Remove the two quick release skewers from the accessories box. Unscrew the end cap nut from
the quick-release skewers and remove one of the two conical springs for each skewer.
1
2
4
3

V2.3 RUNGU Juggernaut User Manual –2020 model year
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14. Insert the skewer into the LEFT wheel from the side of the brake disc as shown below.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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15. Replace the conical spring (small end first) on the other side of the wheel. Screw the end cap on
a few turns to ready the wheel for installation.
16. Prep the RIGHT wheel. Insert the other skewer into the RIGHT wheel from the side OPPOSITE to
the brake disc as shown below.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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17. Replace the conical spring (small end first) on the other side of the wheel. Screw on the end cap
with a few turns to ready the wheel for installation.
18. Get the bike ready to mount the front wheels by making sure the parking brake is off (which is
the way the bike ships). See the section “ Using the parking brake switch”on page 72 for more
information.
19. Lift the front of the bike and mount the RIGHT wheel to the RIGHT fork making sure that the
rotor fits between the brake caliper pads.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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20. The ends of the axle will sit in the fork “dropouts” when correctly aligned. You may have to
unscrew the end cap a turn or two if the fork doesn’t drop in place.
21. Tilt the bike and mount the LEFT wheel to the LEFT fork making sure that the rotor fits between
the brake caliper pads.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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22. The ends of the axle will sit in the fork “dropouts” when correctly aligned. You may have to
unscrew the end cap a turn or two if the fork doesn’t drop in place.
23. Tighten the end cap nut on the LEFT wheel and close the quick-release lever. As a guideline the
end cap nut should begin to clamp onto the fork drop out when the lever points away from the
wheel at a right angle.
WARNING: MAKE SURE TO TIGHTEN THE QUICK-RELEASE IN THE FORK SO THAT THE WHEEL
CANNOT FALL OUT OF THE FORK; FAILURE TO ADEQUATELY TIGHTEN THE QUICK-RELEASE CAN
RESULT IN ACCIDENTAL RIDER INJURY OR DEATH.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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24. Tighten the end cap nut on the RIGHT wheel and close the quick-release lever. As a guideline the
end cap nut should begin to clamp onto the fork drop out when the lever points away from the
wheel at a right angle.
WARNING: MAKE SURE TO TIGHTEN THE QUICK-RELEASE IN THE FORK SO THAT THE WHEEL
CANNOT FALL OUT OF THE FORK; FAILURE TO ADEQUATELY TIGHTEN THE QUICK-RELEASE CAN
RESULT IN ACCIDENTAL RIDER INJURY OR DEATH.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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25. Remove the pedals from the box and install the RIGHT Pedal first –the RIGHT pedal is marked
with an “R” as shown below.
26. Use your fingers to thread the pedal shaft by inserting the threaded shaft into the crank arm.
Then hold the threaded section of the pedal in the crank arm mounting hole and spin the entire
crank arm in a counterclockwise motion as depicted below.
CAUTION: DO NOT FORCE THE THREADING OF THE PEDAL ONTO THE CRANKSET. WARRANTY
DOES NOT COVER REPLACEMENT CRANKS FOR STRIPPED THREADS.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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27. Use a 6mm Hex wrench to tighten the pedal once the pedal is fully inserted.
28. Install the LEFT Pedal next –LEFT pedal is marked with an “L” as shown below.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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29. Use your fingers to thread the pedal shaft by inserting the threaded shaft into the crank arm.
Then hold the threaded section of the pedal in the crank arm mounting hole and spin the entire
crank arm in a clockwise motion as depicted below.
CAUTION: DO NOT FORCE THE THREADING OF THE PEDAL ONTO THE CRANKSET. WARRANTY
DOES NOT COVER REPLACEMENT CRANKS FOR STRIPPED THREADS.
30. Use a 6mm Hex wrench to tighten the pedal once the pedal is fully inserted.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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31. Inflate each tire between 5 and 10 PSI (34 to 69 KPa). See the section Inflating Tires –using
Presta valve adapters for directions.
Note: Tire pressure plays an especially important role in how you enjoy your Rungu Juggernaut. If you
plan to ride mostly on soft ground like sand or snow, use a tire pressure of 5 (34 kPa) for best traction
and control as well as minimizing tread wear. Use 10 PSI (69 kPa) if you plan to ride on harder
surfaces like rock or dirt road. On harder surfaces, a higher pressure minimizes tread wear and
improves the range of your Juggernaut.
CAUTION: AVOID UNDERINFLATING AND OVER INFLATING THE TIRES. UNDER INFLATION (BELOW 5
PSI) MAY PREVENT THE TIRE FROM SEATING ON THE RIM AND PREVENT YOU FROM RIDING
JUGGERNAUT. OVER INFLATION (MORE THAN 15 PSI –103 KPA) MAY RESULT IN TIRE BLOW-OUT
WHILE RIDING.
32. Loosen the Seat Post Clamp by opening the lever. Insert the seat post and adjust to the height
that suits you, then tighten the clamp by closing the lever.
Note: Failure to tighten the seat post can result in discomfort or injury while riding Juggernaut.
WARNING: DO NOT EXTEND THE SEAT POST BEYOND THE MAXIMUM HEIGHT LIMIT BEFORE
CLAMPING. THIS CAN RESULT IN THE SEAT POST BREAKING AND SEVERE INJURY OR DEATH.
33. If the package you purchased includes optional mud flaps (Steep, Rugged, Rubicon Trail Edition)
or the Rungu Cargo Rack with the range-extending battery, continue to the Additional
Instructions for installation. If you have purchased (or you also have) the Rungu Cargo Rack,
please refer to the Rungu Cargo Rack installation instructions for assembly.
34. Remove the remainder of the packing materials.

V2.3 RUNGU Juggernaut User Manual –2020 model year
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Additional Installation Instructions –Mud Guards
If you received Mud Guards as part of your package, follow the directions below for installation.
1. Remove the mud flaps from packaging along with their screws and retention nuts. Remove the
retention nut from each screw. You’ll need a crescent wrench (or 10 mm socket wrench) and a
5mm hex wrench to install the fenders