DIY Motor Kit - electric bicycle

Have a good day !!

Please ask me if you have any futher question and looking forward to cooperate with your esteemed company.  

I hope my answers satisfied your queries.  My suggestion is that you can buy one small set of Forsen sample(36V5A) to test and compare with other E-bike.  You can try the durability and quality of our Forsen kit.  Actual test is the only way to prove the quality of our product.

Beside the hubmotor problems, many other e-bikes factories have only assembled the parts that they bought from other firms.  They bought controller from one factory and bought hubmotor from others and bought Lithium battery from another one and just put all of them together.  This also will cause many problems in E-bike industry.  We, Forsen have designed electric controller, battery management sytem for Lithium battery and hubmotor.  We have integrate all parts by ourselves with test for more than 2 years before selling in the market.  E-bike is not so simple that you just buy all parts from different firms and ride on the road.  Many firms encouter the problems of Lithium battery, and some firms with motors, etc.

Yes, you are right that brushless motor in theory and in some other business is better than brushed motor.  But, when brushless motor applied in electric bike business is not the case.  since this industry of E-bike will involve the vibration and heat of motor.  There are three hall IC and electronic board within the brushless motor, so when IC encountered the vibration and heat.  The Hall IC will easily damage in this case.  In other industry like computer or water pump etc, brushless motor sit in fix position or burshless motor did not require to generate such a big power.  Just imagine that the motor used on electric bike might take a 110 kg man that rided uphill and this motor will encounter the vibration and heat and went through a big hole on the road.  So, many cases of brushless motor have encountered the problems.  Just any 1 of hall IC or electronic board have problems then motor just malfunction.  Many Chinese E-bike or E-bike kit that used brushless motor have problems and the average motor life in the market is about 8-9 months.  So, the brushed motor in E-bike industry is much more reliable than brushless motor.  

Our motor is brushed and not brushless. 
 

Any improper operation of electric bicycle such as collision of scooter, man made damage, or anything that is not related to the manufacturing defects of electric bicycle will not covered in this warranty.  Anything that is generally accepted by general public that is considered as expendable parts such as Tires, brakes, seats, chain, foot peg, light bulbs, paint, etc. are also not covered in the warranty.

Important Note:

5. Power throttle 1 year

4. 42V 2.12A charger 1 year

3. Forsen Patented Battery & Controller kit 2 years

2. Wire Harness 1 year

1. Motor 1 year

warrant 1 to 2 year against below manufacturing defects of Forsen Electric Bicycle Convert Kit. 

WARRANTY OF FORSEN ELECTRIC BICYCLE CONVERT KIT

Forsen have offered two years warranty on our Forsen E-Bike convert kit. (see below)
 

Forsen E-bike kit have two types, one is 36V5A Lithium Polymer (LiFePO4) and another type is 36V10A.  LiFePO4 cell material is more expensive than the LiMN since its life cycle is double of ordinary LiMN battery.  LiFePO4 is also safer than LiMN cell.

The BEST in the world.
1. Quick release design Electric Moto kit for DIY users.
2. Choice of 180 watts or 200 watts brush hub motor.
3. Charger types:36 Volts 3 amp & 42 Volts 1.7 amp.
4. Maximum Speed is 27km/hr.(adjustable according to customer's needs)
5. 100% Made in Taiwan.

Patented Electric Bicycle Conversion Kit. This kit allows your DIY yourself & transform your normal bike into a electric bicycle

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