End to end of drive cups - 65.5mm
Bearings (2) - 8x16x5mm
Diameter of aluminum cup - 30.56mm
I have one of each (52 and 48T).
so nice !!
but I need the length from exterior of the front ball bearing to the exterior of the rear ball bearing
and does exist spur gear of 49, 50, 51 T ??or only 48 and 52T ??