Hi, I am a motorbike enthusiast that does more and more mountainbiking since the offroadbikes are not very wellcome here in Switzerland... So I decided to build my first ebike
After some time of reading and simulating i went for a Crystalyte HT 3525 at 72V (20s Lipo).
The bike is a Intense Uzzi 2002:
It was chosen because of its special frame that has some space for the batteries.
8*zippy flightmax 4.4Ah from hobbyking (20s 2p) just fit into the frame:
The accuframe is just 85mm wide, was made out of 2mm aluminium and 1.5mm for the sidecovers.
The motor was modified (cable guard, bearings, helicoils for the breakdisc…) and equipped with sensors by http://www.electricwheels.de.
Additionally I drilled some 24mm holes in the left sidecover to add some ventilation…
Had to adjust the 180mm disc since the motor wobbles a bit…
The controller is a crazyman 40A 72V.
Actual setting is 25A and 66A phase current for testing. So about max. 2000W on the motor.
The bike runs well, its really fun to drive. Vmax is about 55km/h with fully charged batteries.
It weights 29.7kg. The range is a bit limited, I've just done 28km at max. But this was often in full throttle mode, since it wheelys very well, allmost like a motorbike but with the security of the rear break at the handlebar
cheers Löru
After some time of reading and simulating i went for a Crystalyte HT 3525 at 72V (20s Lipo).
The bike is a Intense Uzzi 2002:
It was chosen because of its special frame that has some space for the batteries.
8*zippy flightmax 4.4Ah from hobbyking (20s 2p) just fit into the frame:
The accuframe is just 85mm wide, was made out of 2mm aluminium and 1.5mm for the sidecovers.
The motor was modified (cable guard, bearings, helicoils for the breakdisc…) and equipped with sensors by http://www.electricwheels.de.
Additionally I drilled some 24mm holes in the left sidecover to add some ventilation…
Had to adjust the 180mm disc since the motor wobbles a bit…
The controller is a crazyman 40A 72V.
Actual setting is 25A and 66A phase current for testing. So about max. 2000W on the motor.
The bike runs well, its really fun to drive. Vmax is about 55km/h with fully charged batteries.
It weights 29.7kg. The range is a bit limited, I've just done 28km at max. But this was often in full throttle mode, since it wheelys very well, allmost like a motorbike but with the security of the rear break at the handlebar
cheers Löru