S2 Spring Steel Speed Run Spool Shaft Limitless

S2 Spring Steel Speed Run Spool Shaft Limitless

Hot Racing

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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 Demond
(Please you will need 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
- LimitLess ARA109011
The vehicle part number can be found on Arrma's website, the literature that came with the vehicle, or on the vehicle box around the barcode. If a vehicle is marked below with the word "optional, " then the part may fit, but may require some modification.
- Typhon: AR106001, AR106013, AR106028, ARA106046


  • 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

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