hias9 said:Did anybody try to use the derailleur mount hole for a torque arm?
Did it damage the thread of the hole?
hias9 said:
Yes, but this frame is thick cromoly steel and the hole has a M10 thread.DanGT86 said:Isn't the hole in most frames a smooth bore with the threads being part of the hanger?
neptronix said:I used a derailleur hanger hole in addition to a rack mount hole long ago on a 3000w build.
It worked.
I wouldn't rely on the derailleur hanger hole by itself though.
That is what I am probably going to do. I think one hole should be okay.MadRhino said:You have enough surface around the dropout to drill and tap 2 screws to add a custom torque plate. Make one each side using 1/4 thick steel plate to cover the actual dropout plates, with the dropout slot longer for extra safety.
hias9 said:That is what I am probably going to do. I think one hole should be okay.
One hole could let it move back and forth with torque/regen hits. I always use two, sometimes M6, or chainring bolts when I have enough room.E-HP said:hias9 said:That is what I am probably going to do. I think one hole should be okay.
Better be a strong bolt (high shear strength), since it'll be the only thing containing the torque of a 16kW motor. Maybe a grade 8?
E-HP said:hias9 said:That is what I am probably going to do. I think one hole should be okay.
Better be a strong bolt (high shear strength), since it'll be the only thing containing the torque of a 16kW motor. Maybe a grade 8?