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Hot Racing

S2 Spring Steel Speed Run Spool Shaft Limitless

Regular price
$8.00 USD
Regular price
$8.00 USD
Sale price
$8.00 USD
Hot Racing Speed Run Center differential spool (locker) hub for the 1/7 Limitless Roller.

- 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


  • 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