Spindle Lengths

[bikedrd]

I have a small E Bike company we are doing and looking for some data. Here is the thing - I live in soft snow country so they are Fat Bikes with big tires. Bosch powered. I'm trying to find cranks that fit and struggling.

What I would value is if anyone has spindle lengths for ISIS spindled motors (Brose, Bosch, Yamaha, others?). Since I am working with Bosch, I can ask for that info from them, but if someone has it handy...

Why I want the data is to see if cranksets designed for another brand would fit. If another brand had a narrower spindle, perhaps cranks designed for them would have greater chainstay clearance.

Thanks

 

[Mikerb]

check out the HOPE website. They provide diagrams with all the measurements for their cranks to fit various E bike motors. The spindle length is only one part of the issue when looking for a crank that fits. The other is Offset........which is how much the cranks flares out from the spindle end to the pedal end, and that offset depends on how much is required to ensure chainstay clearance.

 

[bikedrd]

You understand my studies regarding offset. No one is really publishing their drawings, so it is frustrating.

I'll check out Hope - Thanks!