New smaller design for gear ratios used with 17.5, 13.5 and 10.5 brushless stock motors. Allows the use of smaller sized pinion gears. Moves motor forward for better balance and more predictable handling. 72T and 75T available (48 pitch). For the RC10B4 and RC10T4.
Compatible with Losi XXX and XXX-T with the addition of the following parts (not included):