S2 Spring Steel Speed Run Spool Shaft Limitless

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 shaft

CNC Aluminum Pin capture rings

Allows for ultimate speed run acceleration with out using thread lock for Screw shaft