beemac
10 kW
Waynemarlow said:Actually rotating the motor foward doesn't give any gains, the motor is an eliptical shape, as you rotate it foward the motor profile becomes broader. We have just accepted that its best directly below the BB. Anyway the Chain ring is nearly always bigger than the motor profile and will hit before the motor. You can see the problem here on this straight tube where I thought it would rotate further.beemac said:I will continue my search for an old stumpjumper m5 frame ideally with the nice straight downtube so I can shift the motor forward a bit...
Sure - but i think your photo does show some benefit, maybe not for clearance - but because the motor is rotated forward the chain is less likely rub against the motor case when in lower gears. More of an issue with smaller chainrings.... but I'll see what happens when I finally find a nice fsr frame at a sensible price. Is really not a great time to pick up bike frame bargains... crazy 2nd hand asking prices!