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).
Castle Neu 1520 on 6S LiPo Powered Gmaxx (Nitro Killer)
Predator with OS .21TM
Supermaxx with Mach .26
Revo with OS .18TZ
Kyosho ST-RR Conversion
Ofna CR with Tekin ESC/Motor (2)