Has anyone done an electric Fixie ?

[sico]

Haha, imagine a fixie with a pedalec sensor, it would be on constantly

Why would it be constantly on?

Because the crank sensor turns the motor on when the pedals are going and the pedals are going when the motor is going ... I suppose you could switch it off though.

[MadRhino]

Why would it be constantly on?

Because the crank sensor turns the motor on when the pedals are going and the pedals are going when the motor is going ... I suppose you could switch it off though.

That is consistent with the forced exercise idea. Once your feet are clipped and started, you have to keep pedaling until the programmed LVC.

[SamTexas]

Because the crank sensor turns the motor on when the pedals are going and the pedals are going when the motor is going..

Only true for cheap sensors based on crank's motion. True pedelec sensors are torque based.

[sico]

Can they tell the difference between forwards and backwards torque though?

[voicecoils]

Can they tell the difference between forwards and backwards torque though?

Yes. The Thun bottom bracket for example measures torque, RPM and pedal direction.

[DCMotorworks]

so, if you are coasting down a hill, with your pedals rotating, no motor. but if you apply force to accelerate or climb, motor powers up? but wait, isn't your name Ypedal? like "why pedal"? I'm confused.

DC

[sico]

Can they tell the difference between forwards and backwards torque though?

Yes. The Thun bottom bracket for example measures torque, RPM and pedal direction.

Cool ebike component.

[Haste]

I wanna do this as well. Except with a freewheel instead and vbrakes.

I am thinking about a fuji track pro with my carbon fork.. But then it's like .. A hub motor will not be going in the front forks.. And no way to spread 120mm rear aluminum dropouts.

A geared hub will be necessary.. Probly a 24v cute hub motor powered at 48v... With a 700c wheel that's some good top end speed. I never even bring my Marin offroad.. Kinda a waste,


I just wanna see people reactions hauling at 30mph uphill on a track bike...

Keep battery small.. And light weight. Plus you won't need many amps due to the geared hub...