JRA
Well-Known Member
Now that there is some knowledge of what is available for technology in the e bike marketplace how would your dream bike be set up? And why?
I have been thinking about it and here's mine:
Frame: Steel Mixte with horizontal drop outs and elevated chain stay design to allow for belt drive.
Fork: Steel with extra strong dropouts, torque arm and disc tab (see motor)
Wheels: 35mm inner width 650b rim rear
35mm inner width 700c rim front
14ga. spokes
3 spd Shimano 135mm rear hub with belt drive sprocket and center lock disc mount
Front hub (see motor)
3.0 27.5+ tire rear
2.2 700c tire front
Brakes: Avid bb7 cable activated disc 180mm front rotor/160mm rear
Cranks: 170mm with belt drive sprocket
BB: 73mm threaded
Other: Brooks B15 saddle with suspension seat post
Carbon fiber bars
Adjustable stem
Grabon foam grips
Cut out brake levers
Rear Rack
Cell phone mount
Bell
Rear view mirror
LED Headlight
LED Taillight with accelerometer
Fenders
Pletscher double kickstand
A good lock!
Motor: 500w geared front hub motor with disc mount
Battery: 13s 4p, 29E cells, 47v, 11.0ah Rectangular
Controller: 9fet Infineon
Power meter: Turnigy
I would use this bike to do all my single person, single purpose needs within 30 miles of my home. Mostly to carry some weighted objects on the rear rack like going to the market or hardware store etc.. The battery would live in the space between the mixte style top tube and down tube which is a rectangular space. The reason for the mixte frame is to be able to step through if the objects on the rear rack are in the way of throwing a leg over and also to make the bike as adaptable to others shorter than myself as possible.
I know that front hubs are not that popular but I have had good success with them and using a geared motor the ability to pedal the bike while not under power is almost as good as if it wasn't there. As long as they are properly fastened to a strong fork with torque arms they will never be a problem. And you have two wheel drive! The 3 spd is speced because I feel that with assist you don't need a lot of gears. One to go uphill, one to go across town and another to go downhill work fine. Bike would be geared so that in 3rd there would be good pedal resistance at the top of the motor speed and some beyond. The ability to change gears at a standstill is also a plus.
The idea is that the bike will be probably good for a little over the legal 20 mph but not much under power. That is good enough for my personal needs and cuts out the red tape. I like to pedal and would have no problem getting at least 30 miles out of the battery and that would suffice for a daily driver.
Estimated cost would be +/- $2k.
I have been thinking about it and here's mine:
Frame: Steel Mixte with horizontal drop outs and elevated chain stay design to allow for belt drive.
Fork: Steel with extra strong dropouts, torque arm and disc tab (see motor)
Wheels: 35mm inner width 650b rim rear
35mm inner width 700c rim front
14ga. spokes
3 spd Shimano 135mm rear hub with belt drive sprocket and center lock disc mount
Front hub (see motor)
3.0 27.5+ tire rear
2.2 700c tire front
Brakes: Avid bb7 cable activated disc 180mm front rotor/160mm rear
Cranks: 170mm with belt drive sprocket
BB: 73mm threaded
Other: Brooks B15 saddle with suspension seat post
Carbon fiber bars
Adjustable stem
Grabon foam grips
Cut out brake levers
Rear Rack
Cell phone mount
Bell
Rear view mirror
LED Headlight
LED Taillight with accelerometer
Fenders
Pletscher double kickstand
A good lock!
Motor: 500w geared front hub motor with disc mount
Battery: 13s 4p, 29E cells, 47v, 11.0ah Rectangular
Controller: 9fet Infineon
Power meter: Turnigy
I would use this bike to do all my single person, single purpose needs within 30 miles of my home. Mostly to carry some weighted objects on the rear rack like going to the market or hardware store etc.. The battery would live in the space between the mixte style top tube and down tube which is a rectangular space. The reason for the mixte frame is to be able to step through if the objects on the rear rack are in the way of throwing a leg over and also to make the bike as adaptable to others shorter than myself as possible.
I know that front hubs are not that popular but I have had good success with them and using a geared motor the ability to pedal the bike while not under power is almost as good as if it wasn't there. As long as they are properly fastened to a strong fork with torque arms they will never be a problem. And you have two wheel drive! The 3 spd is speced because I feel that with assist you don't need a lot of gears. One to go uphill, one to go across town and another to go downhill work fine. Bike would be geared so that in 3rd there would be good pedal resistance at the top of the motor speed and some beyond. The ability to change gears at a standstill is also a plus.
The idea is that the bike will be probably good for a little over the legal 20 mph but not much under power. That is good enough for my personal needs and cuts out the red tape. I like to pedal and would have no problem getting at least 30 miles out of the battery and that would suffice for a daily driver.
Estimated cost would be +/- $2k.