any thoughts on this ritchey for mid-drive upgrade?

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emaayan   100 kW

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any thoughts on this ritchey for mid-drive upgrade?

Post by emaayan » Feb 15 2018 3:40am

https://ritcheylogic.com/p-29er-frame-black-yellow

thinking about doing 1500w mid-drive on it...
bikeradar review says the frame tends to flex on sharp turns
https://www.bikeradar.com/mtb/gear/cate ... iew-51099/


one of the things i'm worried about is chainline clearnse as i plan to place a 48t chainring which should be about 45mm away from half the middle of the seat posts, i'm hoping it won't collide with the chainstay..
Trek 7.7 fx, 22.5" frame, 38x700c,10 gears.
ecospeed mid drive 1300 watt engine, max speed 45 kph.
battery1: 48v 14 ah, frame mounted battery, range 40km.
battery2(spare) 52v 10ah frame mounted bag, range, 30km.

ScooterMan101   1 MW

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Re: any thoughts on this ritchey for mid-drive upgrade?

Post by ScooterMan101 » Feb 22 2018 12:41am

I would contact Ritchey by e-mail and ask them what is the largest chainring that can be used on the crankset that will still clear the frame.
( I am finding the problem of not enough clearance for a large chainring on most every mountain bike I research, let me know if you want to use a Full Suspension Frame, I the few that will work )

If not large enough chainring can be used, there are very good Cyclocross frames that will accept a larger outer chainring, and many of them last year and this year are disc frames.
My first conversion ...

https://endless-sphere.com/forums/viewt ... 1#p1077497

It's 2018 already, lets get some real , improved e-bike / e-velomobile / e-motorcycle designs .

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emaayan   100 kW

100 kW
Posts: 1450
Joined: May 11 2012 12:47am
Location: israel

Re: any thoughts on this ritchey for mid-drive upgrade?

Post by emaayan » Feb 22 2018 1:21am

well according to ritchey it was designed with 28/38/48 crankset in mind

but i don't know what that means standards wise as this is the current chainring distance i have now i have now

Image
Trek 7.7 fx, 22.5" frame, 38x700c,10 gears.
ecospeed mid drive 1300 watt engine, max speed 45 kph.
battery1: 48v 14 ah, frame mounted battery, range 40km.
battery2(spare) 52v 10ah frame mounted bag, range, 30km.

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