SpeedTek RC heavy duty stainless steel 8mm spool only! (includes 2 8mm bearings) fits the Arrma Limitless V1, Infraction V1-V2 & Felony 6S Models!  Does not fit in the V2 Limitless. The center driveshafts are the incorrect length.
 
Our Heavy Duty line-up is desined specifically for normal driving and bashing applications.
 
For drag racing and speed runs use our Lightweight gears.
 
The high speed spool comes with a 8mm heavy duty stainless steel spool and 8mm shielded bearings (2).