Hot Racing Speed Run Center differential spool (locker) hub for the 1/7 Limitless Roller.
Included:
- One (1pc) S2 Steel spool Shaft
This will covert Many Arrma 1/8 to a Speed Run Demon
(Requires AR310432 Input Shaft Cup 7x18mm and ARA310951 39T MOD1 Spool Gear 8mm Bore. )
- Fits only center differential. Does NOT fit front or rear differentials.
- Replaces stock Arrma ARA310943 Spool Shaft
Features:
Heavy duty CNC machined S2 spring steel Spool shaftCNC Aluminum Pin capture ringsAllows for ultimate speed run acceleration with out using thread lock for Screw shaft