Fabian
Well-Known Member
Very nice work on your jackshaft assembly
Ok my question is since almost all back wheel hubs have a freewheel why not use a hub from a back wheel off a scraped bike as the jackshaft. And if it's one that has multiple gearing on it then that keeps us from having to buy more sprockets.and help deliver the power from the motor to the pedal chainring, I'm just wondering if it's been done or is it possible to he done safely.Mysterious Hd Freewheel For Front Crank
The toughest part here seems to be the CRANK freewheel.
The pedals must turn the rear wheel & motor.
The motor must turn the rear wheel with the same chain as the pedals.
Thus the rear gear set is still shiftable for both the pedal drive and the motor drive.
The white freewheel that SBP sells is the easiest option.
Very Superior But it is still just a Bicycle Freewheel designed for a bicycle.
SPECS:
ENO freewheel
Thread size
1.37 x 24 tpi
Bearing
1 x 6708 - 16t
1 x 6808 - 17t-22t
Engagement
36 points
http://www.whiteind.com/singlespeedgearing/freewheels.html
Best quality freewheel u can buy assembled.
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Ok my question is since almost all back wheel hubs have a freewheel why not use a hub from a back wheel off a scraped bike as the jackshaft. And if it's one that has multiple gearing on it then that keeps us from having to buy more sprockets.and help deliver the power from the motor to the pedal chainring, I'm just wondering if it's been done or is it possible to he done safely.