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Bafang 48V 500W Crank MID Drive Motor with Lithium Battery
With an integrated speed sensor, this BBS(MM G31) mid-drive motor, which is compatible with standard bikes, has a rated power of 250W,350W and 500W, a reduction ratio of 1: 21.9 and a maximum torque of 80 N.m, providing ideal power for vehicles. This BBS(MM G31) mid motor need your bicycle bottom bracket is 68mm or 100mm.Light but strong and efficient, this BBS mid motor greatly enhances riding comfort and is suitable for touring bikes and commuter bikes. This BBS(MM G31) mid motor is black.
Δ Kit List:
BB: 68mm/100mm/110mm/120mm for optional
1x Mid motor (controller inside)
1x C961 display
1x Thumb throttle
1x Speed sensor
1x Chain wheel
2x Brake levers
1x Down tube type Panasonic battery with charger
|Sensor||Speed Sensor / Hall Sensor|
|Battery||Down tube Type Battery With Charger|
1. Open the package and take out drive unit accessories; And check the specification whether it is correct.
2. Fix the chain wheel on drive unit with 5pcs screw M5*10, then fix chain cover on chain wheel with 5pcs screws ST3.9.
3. Fix the drive unit axle tube on frame bottom bracket.
4. The surface with teeth of fixing plate towards inside, then fix the plate on drive unit with 2pcs M6*10.
5. Hold the drive unit near to bicycle fork, force less than 5kgs, tight 1st nut M33 onto axle tube with force : 30-40N.m.
6. Fix 2nd nut M33 onto axle tube, tightening force: 30-40N.m.
7. Fix the left crank on the bike with M8 inner hexagon screw. Tightening force: 35-40N.m.
8. Fix the right crank on the bike with M8 inner hexagon screw. Tightening force: 35-40N.m.
9. Connect all cables for battery, display, speed detecting sensor and so on.
1.Provide free consulting, to resolve the confusion from customers and supply technology services free by telephone;
2.Mining and carefully study customer’s needs,provide detail and suitable design solutions according to the actual
1.Try best to meet the reasonable demands by customers;
2.Keep close touch with our clients during the period of installation;
3.Cooperate friendly with client and satisfy our clients with best quality electric bike .
1.We provide free training to our customers on how to install and use ebike .
2.Provide 2-year guarantee for normal products free;
3.A complete after-sale service system to help customers resolve the problems during the using time;
4.Regular follow-up service to our customers, solicit opinions from clients and improve the improvement.
The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed replacement parts contained herein are not sponsored, approved, or manufactured by the OEM.