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Failure to maintain this vehicle in proper operating condition can lead to an 

accident resulting in death or serious injury, and property damage. If you have 

any questions about the proper care and maintenance of this vehicle, consult 

your selling dealer/distributor or contact OSET Customer Service at 

[email protected]. Before each ride, make sure that all bolts and nuts are 

fastened securely and that the tires are properly inflated. Before each ride, check 

that the throttle and brake controls are operating freely. Adjust and lubricate the 

drive chain as necessary. See pages 19-30 of this manual for additional details 

regarding service, repair and maintenance. Check the OSET web site for 

maintenance guides. This vehicle should be returned for periodic maintenance to 

your selling dealer AT LEAST once per year, but more frequently if used under 

severe conditions. 

 
 

WARNINGS!

 

Failure to obey all of the warnings & instructions contained in this 

manual may result in serious injury or death and permanent 

damage to your OSET.  

 

 

Safety Responsibilities 

It’s up to you. We’ve done everything we can to supply you with a safe and 

reliable product. Please read, understand and practice the following guidelines 

for safe operation of your OSET electric Trials Bike: 

 

• Always follow the Pre-Ride Checklist before every ride.  
• Do not operate your OSET if any damage is apparent. Immediately contact 
your local retailer/distributor or OSET Customer Service. 

 

 Supervision:

 Riders must be supervised by responsible adults 

at all times

The rider should never be beyond eye and voice range. An adult must ALWAYS 
assess and approve the riding conditions and the bike preparedness before the 
bike is ridden. Always ensure the rider is cautious, maintaining complete control 
and a reasonable speed. Ensure the terrain is suited to the skills of the rider. 
• 

Helmets & Safety Attire

: There is no single factor that works better at reducing 

the severity of injuries sustained in accidents more than a quality helmet. Please 
don’t ever allow your OSET to be ridden without one. Riders should also wear 
suitable riding gear - gloves, eye protection and boots. Boots should NOT HAVE 
LACES. Shoe laces and loose clothing, or even long hair could potentially get 
caught in wheels, chains, or sprockets. 
• 

One Rider Only:

 Your bike was engineered to carry one rider and no (0) 

passengers. Carrying a passenger would overload the machine and alter the 
handling. Do not allow this to happen. 
• 

Do not overload the bike: 

OSET’s are designed for small, lightweight riders. 

Exceeding the weight limitations will adversely affect the handling of the 
machine, and potentially cause damage. 
• 

It’s the law; obey it

: Obey all laws. 

OSET’s are for OFF-ROAD USE ONLY. 

OSET bikes can not be used on public roads or sidewalks. The purchaser, 
owner, and/or riders of this machine are directly responsible to know and obey all 
local, state, and federal laws regarding the riding and use of this machine. 

Summary of Contents for 20 Light

Page 1: ...1 OWNERS MANUAL OSET 16 0 20 Light 20 0 OSET CORP 146 W Irvington Place Denver CO 80223 USA 303 990 2390 http www OSETBIKES com info OSETBIKES com...

Page 2: ...y For developing good riding skills this is a wonderful feature as it will teach the rider throttle control at a very early age In a panic situation riders tend to open the throttle more This could re...

Page 3: ...earned ALWAYS start the rider at the slowest speed response and power settings Even with a slow response a lot of power is available and the rider must learn how to control it These controls must be s...

Page 4: ...tion indicates a potentially hazardous situation which if not avoided may result in damage to equipment or inadvertent system failure Read the text accompanying the Caution to be aware of the specific...

Page 5: ...ctural damage not covered by the warranty Do not touch any moving or hot parts Do not ride at night or under other low visibility conditions Do not immerse this vehicle in water Do not ride on steep o...

Page 6: ...rent Immediately contact your local retailer distributor or OSET Customer Service Supervision Riders must be supervised by responsible adults at all times The rider should never be beyond eye and voic...

Page 7: ...rplane before taking off The pilot knows that his life depends on the airworthiness of his airplane the rider s life depends on the preparedness of your bike Please have your bike checked by a qualifi...

Page 8: ...R BIKE 9 CARE FOR YOUR BATTERIES 10 READ STUDY AND UNDERSTAND THIS ENTIRE MANUAL 11 If you don t understand any aspect of the use and care of your bike PLEASE call OSET Customer Service WARNING OSET B...

Page 9: ...otor Performance Page 20 Suspension Page 20 Daily Maintenance and Cleaning Page 21 Cleaning Page 21 Front Wheel Removal Installation Page 22 Rear Wheel Removal Installation Page 22 Brake Adjustment Pa...

Page 10: ...Motor 800w 36v Rare earth neodymium magnet motor Controller 36 volt 80 amp pulse width modulating with inline relay and fuse External speed dial power dial and throttle map response dial Throttle Twis...

Page 11: ...type 36 volt Gearing 10T front sprocket 86T rear 219 chain Controller 36 volt 80 amp pulse width modulating with inline relay and fuse External speed dial power dial and throttle map response dial Thr...

Page 12: ...sh type 48 volt Gearing 10T front sprocket 86T rear 219 chain Controller 36 volt 80 amp pulse width modulating with inline relay and fuse External speed dial power dial and throttle map response dial...

Page 13: ...rubber bung See page 17 for further details The maximum speed dial throttle response dial and power dial are located underneath the rubber bung in the tank area The OSET 16 0 20 0 Light and 20 0 featu...

Page 14: ...dealer or call the OSET Customer Service Department for assistance NOTE If you purchased your OSET at a local retailer your machine may be fully adjusted and ready to ride If you purchased your OSET...

Page 15: ...left hand thread Remove axle from the fork legs This is unscrewed anti clockwise right hand thread picture 3 1 2 3 7 Remove disk pad spacer picture 4 this item is used for transport only 8 Loosen top...

Page 16: ...before connecting the positive red and negative black leads WARNING Failure to properly install the batteries may result in an accident resulting in death serious injury and or property damage If you...

Page 17: ...attaching ensure that the power is switched to the off position Please refer to the battery and charging section page 26 of this manual for more information Handlebar switch This switch is in additio...

Page 18: ...function of this dial is to adjust the response of the bike Fully anti clockwise will give the slowest throttle response Fully clockwise will give the quickest response Refer to page 33 for instructio...

Page 19: ...the chain Adjustment is done as follows 1 Ensure power is turned off 2 Loosen axle nuts 3 Turn adjustment nuts evenly on both sides Very small movements can make a big difference Do not tighten so muc...

Page 20: ...d high temperatures However sustained maximum output is not recommended The motor is designed to withstand pulses of maximum output not sustained SUSPENSION OSET s feature adjustable front and rear su...

Page 21: ...ires for proper inflation Also inspect the tires for damage CLEANING Cleaning and maintaining your OSET correctly will provide a more enjoyable ownership and riding experience By hand cleaning the bik...

Page 22: ...f and the key removed 2 Lift the bike onto a block or stand so the wheels are off the ground 3 Loosen the axle bolts 4 Loosen the chain adjustment nuts to the point where the wheel can be pushed forwa...

Page 23: ...nts are needed follow the instructions below Using an allen wrench loosen the caliper mounting bolts allowing the caliper to move freely from left to right With the wheel raised pull the brake lever T...

Page 24: ...checked regularly and only the correct fluid used to top up Any drag in the system will affect performance and wear out components and brake pads more quickly BRAKE ADJUSTMENT AND OPERATION All brake...

Page 25: ...property damage If you have any questions about the batteries or their usage please do not hesitate to contact the OSET Customer Service Department WARNING Never short circuit the discharge terminals...

Page 26: ...secure the charger lead to the bike Plug the charger into the wall outlet Switch the charger on LED Indications The LED will illuminate RED when the charger is plugged into a wall outlet The Indicato...

Page 27: ...e charger while charging the battery This can cause the charger to overheat CAUTION The battery charger supplied with this battery is for INDOOR use only CAUTION Avoid any contact with water or other...

Page 28: ...cing the batteries periodically This can be done with a 12v smart charger such as a Battery Tender or Optimate available from motorcycle shops and some automotive stores Each 12v battery can be charge...

Page 29: ...for each wire When it comes time to reconnect each wire must be to the correct terminal Push the remaining positive and negative wires to the back of the bike so the battery bag can be carefully lifte...

Page 30: ...Rechargeable Battery Recycling Corporation RBRC at www rbrc org WIRING Your OSET is an electric bike and features a considerable number of electrical components and wiring All must be protected from...

Page 31: ...t the speed switch the response dial etc Controller and fuse Relay in a Velcro bag WARNING There are no user serviceable elements incorporated into the motor motor controller batteries battery charger...

Page 32: ...32 WIRING DIAGRAM...

Page 33: ...et to high for experienced advanced riders over 10 years old ONLY Turn the power dial in very small increments to the desired setting ALWAYS start the rider on the slowest settings 4 Check the tires a...

Page 34: ...e off position 2 Lift the machine on to a stand or block so the back wheel is an inch or two off the ground 3 Sit the rider on the machine 4 Explain all the controls a Throttle b Front Brake right han...

Page 35: ...ourage the rider to rock the machine from side to side and forward and back in order to get comfortable 5 The rider can now switch the machine on 6 Before turning the throttle the rider s legs can be...

Page 36: ...ult should run along and help support when necessary 4 Once up and running in the standing position it s time to learn some technique NOTE A common error in our view is to put children on machines tha...

Page 37: ...the intricacies of balance body position and throttle control NOTE A surprising amount of technique can be completely natural for children In many cases the riders simply work out what works best and...

Page 38: ...can be found on www osetbikes com OSET CONTACT INFORMATION OSET Corp 146 W Irvington Place Denver CO80223 USA 303 990 2390 www osetbikes com infor osetbikes com OSET Bikes Ltd Unit 32 Edge Workshops...

Page 39: ...cial purposes unless the specific product is designated labeled or marketed by OSET as acceptable for rental or commercial use All warranty claims must be made directly to selling retailer The selling...

Page 40: ...40...

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