Wisper 705 TORQUE User manual

Owner’s Manual
Wisper 705 / 905 Torque 2016 Model
February 2016 1st edition
We strongly recommend that you read this entire manual before using your Wisper
bike
1

Contents!
2

1. Introduction 5..........................................................................................
2. Caring for your Wisper bike and pre-use checks 6................................................
2.1. Before you set off for the first time 6
2.2. Before each use 8
2.3. Battery care 8
2.4. Recharging your battery 10
2.5. Water 10
2.6. Maintenance and adjustments 10
2.7. Technical specifications & performance 12
Motor High efficiency, 250W ultra hi torque brushless rear wheel drive 12
Hybrid Torque drive system designed to deliver maximum power to the 12
rear wheel smoothly, silently and efficiently. 12
Battery Lithium with advanced battery management system (BMS) 12
Medium range 375Wh 2.6kg 12
Long range Samsung 575Wh 3.4kg 12
Both batteries use identical battery cases so are interchangeable between 12
705Torque, 806Classic and 905Torque Wisper bikes 12
Remote Control Service System (RCSS) on 575Wh only 12
Deep sleep mode. Protects battery during times of non-use on 575Wh only 12
Battery case Polycarbonate/ABS mix, non conductive for extra safety, conforms to 12
2013 90cm drop test. 12
Controller Sine wave controller for almost silent running 12
Mains charger Lithium 42V output intelligent charger communicates with battery 12
management system (BMS), auto stop when fully charged 12
2A, Charge time 2.5 to 8hours depending on battery state 12
Connections All electronic components and motor wheel have individual connectors for
12
ease of servicing 12
Assisted range 375Wh battery Average 50miles/80kilometers Max 70miles/115kilometers
12
575Wh battery Average 70miles/115kilometers Max100miles/150kilometers 12
Assistance 1. Throttle only: to 4mph/6kph 12
2. Throttle assist: complete throttle use when pedaling forward 12
3. Pedelec: with 4 levels of assistance power and safe mode 12
4. Twist throttle to disengage torque sensor for more power on flat. 13
Max speed 15.5mph/25kph with powered assistance 13
Controls Back lit LCD display panel!with bike and light on/off switch 13
Power assistance: four levels and safe mode 13
3

Speedo, Range, Trip, Battery state, Clock 13
Bicycle weight20.5kg without battery 13
Including battery and all accessories13
375Wh: 23kg 13
575Wh: 24kg 13
Load capacity 135kg/290lb/20st 9lb 13
Frame Hand welded, 6061 Alloy T4 and T6 tempered 13
Frame size 705 18” 46.5cm 13
905 20” 50cm 13
Finish Graphite Silk painted and lacquered, three stage oven hardened 13
Forks Suntour NCX/SR with lockout adjustable hydraulic suspension forks with 13
hydraulic lock out 13
Seat post Promax 350mm black anodised aluminium 13
Saddle Selle Royal Italy E-Bike Saddle with handle 13
Handlebars Promax black anodised alloy with ergo support grips 13
Stem Promax black anodised alloy quick release adjustable 13
Kick stand Black anodised alloy 13
Gears SHIMANO Acera 8 speed derailleur with 8 speed selector 13
8 speed Shimano or Sunrace rear sprocket 13
Chain ring 170mm 52 tooth 13
Chain guard Full, alloy Graphite Silk paintwork 13
Chain KMC Z51RB rust resistant 13
Cranks Anodised Black alloy 13
Drop outs Stainless steel cassette 13
B Bearing Sealed bearing 14
Pedals Wellgo city and touring style alloy non-slip, sealed bearings 14
Brakes Tektro Hydraulic vented 180mm disc brakes front and 160mm rear 14
Rims Alloy double walled 26” x 1.5” 14
Spokes 13g black anodised 14
Tyres Kenda 1088 26” 1.75 high puncture resistance with Kevlar and wall reflector
14
Mudguards Polycarbonate shatterproof 14
Lighting Front: Spanninga 36V 15W LED super bright, power from bike e-system 14
Rear: 36V light, power from bike e-system 14
Reflectors: front white, rear red, wheels orange and pedal reflectors 14
2.8. Simple Trouble shooting 14
3. Controls and equipment 15...........................................................................
4

1. Introduction
Thank you for choosing a Wisper electric bicycle.
Before you use your Wisper electric bike it is important that you read this manual
carefully. If there is anything you do not understand completely, please contact us.
Please observe traffic regulations, and do not lend your bicycle to anyone who is
unfamiliar with it. In the UK the bicycle can only legally be used on the road by a person
aged fourteen years or older.
We strongly advise you to always wear an approved cycle helmet when riding your bicycle.
If you are unfamiliar with cycling, we advise attending a cycle proficiency course prior to
using your new bicycle on the public highway.
When using any bicycle, it is important that you stay within safe limits; if you feel as if
you are travelling too quickly, you probably are.
Always test your brakes prior to using the bike, and remember the bike will not stop as
quickly in the wet as it would in the dry!
3.1. Battery on/off switch and lock 15
3.2. The ON/OFF button and Light button 16
3.3. The Throttle 17
3.4. Torque sensor 17
3.5. Battery capacity meter, riding style and affect on range 18
3.6. Brakes 19
3.7. Stem and handle bar clamp 905 and 705 20
3.8. Front suspension forks 21
3.8.1 Your bike has been fitted with Suntour NCX/SR with lockout adjustable hydraulic
suspension 21
forks with hydraulic lock out 22
3.9. The connectors 22
3.10.Quick release saddle height adjustment 23
3.11.Rims and spokes 23
3.12.Chain and drive wheel removal 23
3.13.Derailleur and gear change 24
4. Warranty, battery maintenance and user responsibilities 25...................................
4.1. Battery maintenance and user responsibilities 26
5. Service 27..............................................................................................
6. Pre Delivery Inspection check list 28...............................................................
5

Before you use the bike for the first time, please make absolutely certain that it has been
correctly assembled. You can do this by either taking it to your nearest cycle engineer or if
you are proficient in cycle mechanics, inspecting it yourself. In particular you must make
sure that the pedals, saddle, handle bars and any self assembled items have been fitted
correctly.
Avoid consuming alcohol before you ride your electric bike. The use of alcohol greatly
reduces reflexes and limits your ability to ride safely.
If you need to replace your battery, please either dispose of it properly or preferably send
it back to us at Wisper or one of our distributors and we will make sure it is properly
recycled.
Above all, enjoy your Wisper bike, happy cycling!
Amps Electric Bikes Ltd
2. Caring for your Wisper bike and pre-use checks!
Your Wisper bike has been thoroughly tested at the factory prior to delivery, and
undergone a pre-delivery inspection by your Wisper Stockist.
It is very important that you check the bike thoroughly before its first use. Equally
important are frequent and regular spot-checks, as they will protect you and your Wisper
bike.
Please read this manual carefully. Only on full understanding all of the functions of this
electric bicycle should you attempt to use it.
2.1. Before you set off for the first time!
2.1.1 Check the handlebars and handlebar stem are properly tightened.
2.1.2 Check all other nuts, bolts and fixings are properly tightened.
2.1.3 Check brakes are functioning properly.
2.1.4 Check tyre pressures are correct and tyres are not damaged.
2.1.5 Check reflectors and lights if fitted, are functioning properly.
2.1.6 Make sure the battery is fully charged.
6

2.1.7 Load the battery into bicycle and turn on with the switch located at the rear right
hand side of the battery. To remove the battery turn the battery key hold in
unlocked position and slide the battery out. Remove key from battery and keep
save during operation of the bike.
2.1.8 Turn on the bike by pressing the on/off switch adjacent to the left hand grip for
two seconds. (Turn off the bike by repeating the same process).
!
Fig 1
The bike will be ready to ride and the LCD will activate showing battery state,
assist level, time, trip and speed. Exerting pressure on the pedals or twisting the
throttle will now activate the motor.
!
Fig 2
2.1.9 To avoid unplanned acceleration, always make sure that the LCD assist level is set
to 0 when mounting, dismounting and turn the bike off when leaving it unattended.
To set the assist levels, toggle with the + and – buttons (see fig 1)
2.1.10 For full information regarding the XT-LCS W108 LCD display please refer to
separate hand book available from Amps Electric Bikes or your retailer.
7

2.1.11 Remember to validate your warranty by visiting www.wisperbikes.com/mywarranty
and filling in your details.!
2.2. Before each use!
It is important you check your bike prior to each time you use it. Checks should include
the following: (If you do find any damage or problems, do not use the bike until the
problem has been solved or you have had the faulty item checked by an electric bike
mechanic or your retailer).
2.2.1 Check the tyres for any visible damage.
2.2.2 Check the tyre pressures.
2.2.3 Check for any loose nuts, bolts or fixings.
2.2.4 Check the brake functions.
2.2.5 Check the electronic functions.
2.2.6 Check the reflectors are in place and the lights are working.
2.2.7 Check the battery for any visible signs of damage.!
2.3. Battery care!
2.3.1 Your Wisper bike comes with a high quality lithium ion battery. All lithium batteries
need to be looked after to ensure years of full use. The latest Wisper 575Wh
batteries come with new technology installed to assist you in looking after your
battery and will be dealt with separately. Following these easy steps will ensure
the long life of your battery
2.3.2 Recharge your battery after every use if possible. Keeping your battery charged
extends it’s life and your bike is always ready to go.
2.3.3 You do not have to “condition” your battery by charging and discharging before it’s
first use. This was the case with old lithium ion technology but is not necessary on
modern batteries
2.3.4 Never leave your battery completely discharged for more than 24 hours. Voltage
dropping below minimum for any length of time will cause serious damage to your
battery cells.*
2.3.5 Recharge your battery every month even if you are not using the bike. Most lithium
Ion batteries will continue to discharge even when the bike and battery are turned off
(see above). If your battery falls below minimum Voltage it may not be recoverable.*
2.3.6 Do not expose the bicycle or battery pack to fire, heat sources, acid or alkaline
substances.
8

2.3.7 When leaving your bicycle during hot weather, always leave in a shaded well
ventilated area.
2.3.8 For best results, always recharge and store the battery at room temperature.
2.3.9 Before unloading the battery, make sure it is turned off and unload the battery
using its handle.
2.3.10 Further information on user responsibilities and battery maintenance are included
in the warranty section of this manual.
* The most common cause of battery failure the owner not keeping to points 4 and
5 above.!
Thisisthemostcommonreasonforcustomerstoneedtoreplacebatteries.Thisis
particularly noticeable in the spring when customers are using their bike for the
first time in the new year. We get most calls regarding failing batteries during this
period.
IMPORTANT!
If your battery is damaged due to your leaving it discharged, or not recharging
when advised as per this manual your battery is not covered by our warranty.
Battery safety
2.3.11 i. Never leave a battery connected to the charger or mains power over-night.
ii. Never recharge a battery outside, in damp conditions or in temperatures
less then 0 degrees centigrade.
iii. Never open a battery case, try and fix the battery or give it to any one other
than a registered Wisper Stockist for maintenance. (Failure to
comply will void the warranty)
iv. If a battery is, or appears to be damaged or overheating for any reason, do
not use the bike and immediately return the battery to your retailer for advice
and a safety check.
IMPORTANT!
Ignoring any of the safety rules above could cause serious injury or fire.
2.3.12 Wisper 575Wh Lithium Batteries
Bikes fitted with the latest Wisper long range batteries have extra features to help
keep it in good health.
i.“Deepsleep”or“hibernation”mode.!
Once recharged the new Wisper 575Wh battery does not need recharging for up
to 6 months over the winter. We recommend the battery is recharged every 6
months. To put the battery into deep sleep mode simply press the LED button on
the battery for 10 seconds. If the battery is below 29V, deep sleep will be
activated automatically after 24 hours of non-use. The battery will
automatically wake up when you turn your bike back on.
9

ii. Remote Control Service System (RCSS)!
Using the very latest technology we can connect the new Wisper 575Wh battery
and charger system directly to the battery manufacturer’s technical
department’s computer. Software updates will be uploaded to the battery and
charger and system diagnostics will take place. The battery manufacturer will make
recommendations to resolve any issues. In some cases fixes can be made remotely.
All Wisper Stockists will be able to check the condition of both battery and
charger. Information such as the charging history, battery capacity, etc. will be
available on screen.
iii. Phone Charger!
The socket on the battery used for connection to the RCSS can also be used to
charge a mobile phone.
2.4. Recharging your battery
2.4.1 Before charging, make sure the charger is turned off and connect your battery to
the charger at the charging socket. Plug the charger into a mains socket and turn on the
mains socket. A red lamp will light up on the charger indicate the battery is charging.
When the red light turns green, the battery is fully charged. To optimize battery life,
leave the charger connected for a further hour and then turn off the charger and
disconnect it from the mains after charging. Always disconnect the charger from the
mains before disconnecting the charger from the battery. It is possible that the battery
will take up to twelve hours to charge on the first three charges.
2.4.2 When charging the battery, always do so in a well ventilated area.
2.4.3 Do not leave the charger connected to the mains when not in use. !
2.5. Water!
2.5.1 Your electric bicycle is rain and splash proof and can be used in all weathers.
2.5.2 The electrical components of the bicycle, such as motor, battery, and controller,
must not be submerged in water. !
2.6. Maintenance and adjustments !
2.6.1 IMPORTANT! Do not attempt to open the casings of the battery, motor or
controller. It could be dangerous and all warrantees will become void. If you experience
a problem, contact our service department or your Wisper retailer.
2.6.2 Wheel spokes should be adjusted after 300 miles of riding. Handlebar and saddle
tubes should never be raised beyond the maximum permissible, indicated by a safety line
around the tubes. The recommended torque (tightness) of crucial fixings is as
follows:
10

Front axle nuts. 46N.m !
Back axle nuts. 70N.m!
Handlebarandstemclampbolts. 12N.m!
Handlebar stem expander bolt. 10N.m!
Seat pillar clamp nut/bolt. 5-8 N.m!
Seat clamp nuts. 24N.m!
Crank axle Allen bolts. 40N.m!
Gearshifternuts. 4N.m!
Rearcarriernuts. 8N.!
Mudguard bracket nuts. 8N.m
Other general torque settings depend on the thread size. M4: 2.5-4.0N.m, M5:
4.0-6.0N.m, M6: 6.0-7.5N.m.
2.6.3 Your bike has a rear derailleur that will automatically tension your chain. However,
if the chain becomes loose or frequently comes off the front chainwheel, please seek
advice from your Wisper dealer.
2.6.4 Brake levers should lock the wheels when compressed half way between their open
position and touching the handle bars.
2.6.5 Warning: Handlebar hand grips or tube end plugs should be replaced if damaged,
as bare tube ends can cause injury.
2.6.6 Front and rear brake pads must be replaced if the pad material wears to
less than 1mm.
IMPORTANT! braking distances increase on wet or icy roads.
2.6.7 Lubrication:
6.7.1. Lubricate all pivot points on the derailleur and chain with light oil or chain
lube on a regular basis.
6.7.2 Once a year, have your dealer re-grease the headset bearings, front wheel
bearings and pedal bearings.
2.6.8 Recommended tools for proper maintenance:
Torque wrench with lb/in or N/m gradations
2, 4, 5, 6, 8mm Allen wrenches
9, 10, 15 mm open-end spanners and 15mm box end spanner
14,15,and19mmsocket
T25Torquewrench
No.1Phillipsheadscrewdriver,bicycletubepatchkitandtyrepump
11

2.7. Technical specifications & performance
Motor High efficiency, 250W ultra hi torque brushless rear wheel drive
Hybrid Torque drive system designed to deliver maximum power to
the
rearwheelsmoothly,silentlyandefficiently.
Battery Lithium with advanced battery management system (BMS)
Medium range 375Wh 2.6kg
Long range Samsung 575Wh 3.4kg
Both batteries use identical battery cases so are interchangeable
between
705Torque,806Classicand905TorqueWisperbikes
Remote Control Service System (RCSS) on 575Wh only
Deep sleep mode. Protects battery during times of non-use on 575Wh
only
BatterycasePolycarbonate/ABS mix, non conductive for extra safety, conforms to
201390cmdroptest.
ControllerSine wave controller for almost silent running
Mains charger Lithium 42V output intelligent charger communicates with
battery
management system (BMS), auto stop when fully charged
2A, Charge time 2.5 to 8hours depending on battery state
ConnectionsAll electronic components and motor wheel have individual
connectors for
ease of servicing
Assisted range 375Wh battery Average 50miles/80kilometers Max 70miles/
115kilometers
575Wh battery Average 70miles/115kilometers Max100miles/
150kilometers
Assistance1. Throttle only: to 4mph/6kph
2. Throttle assist: complete throttle use when pedaling forward
3. Pedelec: with 4 levels of assistance power and safe mode
12

4. Twist throttle to disengage torque sensor for more power on flat.
Maxspeed15.5mph/25kph with powered assistance
ControlsBack lit LCD display panel!with bike and light on/off switch
Power assistance: four levels and safe mode
Speedo, Range, Trip, Battery state, Clock
Bicycle weight 20.5kg without battery
Including battery and all accessories
375Wh:23kg
575Wh:24kg
Loadcapacity135kg/290lb/20st 9lb
Frame Hand welded, 6061 Alloy T4 and T6 tempered
Framesize 705 18” 46.5cm
90520”50cm
Finish Graphite Silk painted and lacquered, three stage oven hardened
Forks Suntour NCX/SR with lockout adjustable hydraulic suspension forks
with
hydrauliclockout
SeatpostPromax 350mm black anodised aluminium
Saddle Selle Royal Italy E-Bike Saddle with handle
HandlebarsPromax black anodised alloy with ergo support grips
Stem Promax black anodised alloy quick release adjustable
KickstandBlackanodisedalloy
Gears SHIMANO Acera 8 speed derailleur with 8 speed selector
8 speed Shimano or Sunrace rear sprocket
Chainring170mm52tooth
Chain guard Full, alloy Graphite Silk paintwork
Chain KMC Z51RB rust resistant
Cranks A n o d i s e d B l a c k a l l o y
DropoutsStainless steel cassette
13

BBearingSealed bearing
Pedals Wellgo city and touring style alloy non-slip, sealed bearings
Brakes Te k t r o H y d r a u l i c v e n t e d 1 8 0 m m d i s c b r a k e s f r o n t a n d 1 6 0 m m r e a r
Rims Alloy double walled 26” x 1.5”
Spokes 13g black anodised
Tyres Kenda 1088 26” 1.75 high puncture resistance with Kevlar and wall
reflector
Mudguards Polycarbonate shatterproof
Lighting Front: Spanninga 36V 15W LED super bright, power from bike e-
system
Rear: 36V light, power from bike e-system
Reflectors: front white, rear red, wheels orange and pedal reflectors
RearRackCertified to 25kg !
Metal fixings A4 grade stainless steel or alloy
2.8. Simple Trouble shooting
!
Problem
!
Possible reason
!
Solution
!
To p s p e e d t o o
slow
!
1. Low battery voltage
2. Handlebar control
problem
3. Damage to motor
driveline
!
1. Recharge battery
fully
2. Call service
!
3. Call service
!
Power on, but
motor not
working
!
1. Battery not connected
2. Motor connection
damaged
3. Handlebar control
problem
!
1. Re install battery
2. Call service
!
3. Call service
14

3. Controls and equipment!
In this section, the functions and any specific maintenance needed on all the main
controls and ancillary equipment are described.
3.1. Battery on/off switch and lock
3.1.1 Your Wisper bike is supplied with two identical keys. The key locks the battery to
the bike.
3.1.2 The battery is connected to the electrical system of the bike automatically when
you slide the battery into the rack. To turn on the bike’s electrical system, press 1 on
the switch located on the right hand side at the rear of the battery. To turn off the
power, press 0.
!
Low range
after
recharging the
battery
!
1. Tyre pressures too low
2. Undercharge or
charger fault
!
3. Battery capacity loss
or damage
4. Hill climbing,
frequent stops, strong
headwinds, overloading.
!
1. Check pressures
2. Recharge
completely or have
charger inspected
3. Replace battery
!
15

!
Fig 3
3.1.3 When the battery has been turned on, the bike is now ready for use. The on/off
button on (the top button c- on the handle bar control) isolates the power from the
bike.
!
Fig 4
Whentheon/offbuttonispressedfor3secondstheLCDsymbolswillbecome
visible. When the on/off button is pushed again for 3 seconds, the LCD symbols will
disappear - you have turned the bike “off”. When the bike is “off” you will not get any
assistance from the battery and motor and the bike is effectively an unpowered
pushbike.
3.1.4 To lock the battery into the bike frame, slide the battery into the battery holder in
the rack until you hear a click. To unlock the battery, turn the key fully anticlockwise
and hold in this position whilst siding the battery out.
3.1.5 The battery can be charged either on or off the bike.!
3.2. The ON/OFF button and Light button
3.2.1 To turn the power on so the pedelec system is operational, simply press the on/off
button (marked with a c-) on the handle bar control for 3 seconds - the LCD
symbols will become visible showing the power is on. When the on/off button is pushed
16

again for 3 seconds and the LCD symbols become invisible you have turned the bike
“off”. When the bike is “off” you will not get any assistance from the battery and motor
and the bike is effectively an unpowered pushbike. If the bike is left for ten
minutes without being ridden, the bike will automatically turn off. The battery
capacity indicator lights provide an indication of the battery capacity remaining with
four bars indicating the battery is at full capacity. The display also incorporates a
diagnostic function as described above.
3.2.2 The LIGHT button is the + button found under the on/off button. If you press and
hold down for 3 seconds when the bike’s power is on, the LED headlight and rear
light will illuminate. The LCD display will also become back lit. Press it again for 3
seconds to switch off the lights. The power for the lights comes from the bike
battery, but due to the low power consumption of the LED lights, you will not
noticeably reduce your range.
IMPORTANT
Do not press the – (minus) button to turn off the lights as this will activate the
walk along mode and the bike will start to move forward.!
3.3. The Throttle !
3.3.1 The twist grip throttle can be found on the left hand side of the handlebars.
Further details of the operation are provided below. The twist and go throttle has
two functions:
i. To power the bike sufficiently to help when walking the bike to a maximum of
4mph 6km/h. This can also be achieved by pushing the – button for 3 seconds
and holding.
ii,Toincreasethepowertothemotorwhenonalevelroad.Thethrottletakesthe
bike out of torque sensor mode. Your range will decrease if you use this option.
!
Fig 5
3.4. Torque sensor
17

3.4.1 When you first ride your Wisper bike, you will notice that the motor will start
working as soon as you put pressure on the pedals. This is the standard or torque
mode. The more pressure you put onto the pedals the more powered assistance you
will receive.
3.4.2 You will find the assist buttons (marked with a +and a -) on the handle bar
control. Each time the +button is pressed, the LCD will move between 0 and H and the
corresponding power level increases in increments of 25%. Setting 4 provides 100%
power. The default level is set to 1 when the bike is first turned on. We recommend that
you press, the -button once before you mount the bike so the motor and torque
sensor is deactivated. Once on the bike, press the + button once to activate the
assistance mode. You can start off in any level, if you are on a hill for instance you may
want to start in 2,3 or 4.
3.4.3 Setting 4 is generally used when you need the maximum amount of assistance from
the motor, but this will drain the battery the fastest. Lower settings are used when you
do not need the assistance at 100% power. In high traffic situations or poor conditions
such as ice and snow, instant full power could be dangerous. Power settings can be
changed when the bike is stationary or when on the move.
3.4.4 Setting H is used to turn off the torque sensor. On setting H as soon as the pedals
are rotating you will receive maximum assistance from the bike. You will not get
any assistance on start off until the pedals have been turned ¼of a revolution. H
setting should only be used when you want maximum assistance from the bike
without putting much pressure on the pedals. Using H setting will reduce your
range by up to 30%
IMPORTANT! Make sure your throttle and handlebar grips are always intact and in good
condition. Uncovered handlebar tubes can be very dangerous. !
3.5. Battery capacity meter, riding style and affect on range!
3.5.1 The range of the bike (distance covered between recharging of the battery) is
greatly influenced by the level of assist selected, the amount of pedal assistance
provided by the rider and the use of the throttle.
3.5.2 If a high level of assist is selected, then the range of the bike will be reduced
compared to using a lower level of assist.
3.5.3 The Wisper torque system detects the speed the pedal cranks are turning and the
amount of pressure being exerted on the pedals. This information is fed into an on
board computer (controller) to give the rider the most natural riding experience
possible.
3.5.4 The optimum range is achieved when the rider pedal effort is maximized and an
ideal situation is for the rider to aim to match the power being provided by the bike on
an equal basis.
3.5.5 The battery capacity indicator is provided to give an approximation of battery
capacity remaining. Each bar on the LCD approximates to a ¼of the capacity.
18

However, this indicator relies on sensing battery voltage that will rise and fall
depending on the amount of power being demanded at any given time, ambient
temperatures etc, hence the meter should only be used for indication purposes.
3.5.6 The battery capacity indicator, built into the top of the battery (four LEDs)
provides a similar indication and operates on the same principle.
3.5.7 Under heavy power situations (full throttle or high levels of assist) the battery
voltage will temporarily dip resulting in the capacity meter showing a lower level
of charge. When the heavy power usage is reduced, the capacity meter will rise
again as the battery naturally recovers it’s voltage.
3.5.8 During the discharge period of the battery, the voltage will drop from an initial
voltage of nearly 42 Volts to a minimum of 31.5 Volts. The bulk of the discharge period
will be in the range of 38 to 36 Volts which provides the optimum performance for the
bicycle. Hence due to this wide range in voltage, the performance of the bike will vary
depending on the state of charge of the battery. To achieve the best possible
performance, it is better to start a journey with a fully charged battery and to recharge
it at the end of each journey.!
3.6. Brakes!
3.6.1 Hydraulic disc brakes are fitted to the front and rear wheels of the bicycle.
Hydraulic disc brakes offer several advantages over traditional rim brakes,
including better braking in wet, muddy or other adverse conditions, less braking power
fade over extended downhill braking and the ability to continue braking even if your
rim becomes bent or distorted.
3.6.2 Details of how to adjust and maintain your brakes are as follows:
3.6.3 Regularly inspect the brake pads for wear. If they have reached the wear limit of
1mm, replace them immediately.
3.6.4 Front brake, remove the caliper from the fork leg, complete with the mount
adapter by removing the two 6mm Allen caliper fixing screws. For the rear brake,
remove the caliper by removing the two 6mm Allen caliper fixing screws on the bike
frame. The pads can then be removed by unscrewing and removing the pad
retaining screw (which passes through the tabs of the brake pads) using a 3mm Allen
wrench. Then lift the pads complete with the spring out of the rotor slot in the
caliper body.
Warning! Do not loosen any other screws on the caliper.
3.6.5 To refit the pads, hold the pads complete with spring as an assembly and insert
into the caliper slot with the metal backing towards the pistons. Refit the pad
retaining screw ensuring it passes through the holes in the pad tabs and through the
hole in the spring and tighten to 3– 5 N.m. Refit the caliper loosely using the two
Allen screws, apply the brake lever and tighten securely to 6 to 8 N.m whilst
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continuing to apply the brake lever. (N.B. use of a thread locking compound is
recommended on the caliper fixing screws).
Warning: If you are unsure about any part of the brake installation process you
should seek advice from a Wisper service center or qualified mechanic.
Caution: The pads and rotor must be kept clean and free from oil or grease based
contamination. If the pads become contaminated you must discard them and
replace them with a new set. A contaminated disc should be cleaned with a
proprietary brake cleaning solution.
3.7. Stem and handle bar clamp 905 and 705
3.7.1 Your bike has been fitted with an adjustable handlebar and stem clamp that allows
you to change the angle and height of the bars to find the most comfortable riding
position.
3.7.2 The handlebars can be adjusted before you use the bike by slackening the four
clamp bolts (shown in the picture below) using a 4mm Allen key. Once a comfortable
position is achieved, securely tighten the four clamp bolts evenly, ensuring an even
gap is left between the two halves of the clamp housing, and the serrations on the two
halves of the clamp mate correctly with the fixed part of the stem. Tighten the four
bolts to a torque setting of 12Nm
!
Fig 5
3.7.3 To alter the rake of the handle bars, slacken the central Allen screw in the side of
the stem and rotate the stem up or down until the desired position is obtained.
Retighten the Allen screw securely to 17-18.5 Nm.
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