SpeedTek RC lightweight hardened stainless steel spool fits in the Arrma 6S Models including Limitless V1!  Does not fit in the V2 Limitless.  The center driveshafts are the incorrect length.
 
We use these spools on all of or drag racing & speed run applications. 
 
The high speed spool comes with a 8mm hardened stainless steel spool, 5mm hardened steel drive cups, hybrid shielded bearings and your choice of a lightweight hardened steel 1mod spur gear ranging between 20-56 & 60 teeth.
 
NOTE: PHOTOS ARE FOR IDENTIFICATION ONLY
Photo is for identification only and ARE NOT a photo of the exact speed spool being ordered. Please reference the tooth count.
 
Includes:
1 x SpeedTek RC Arrma 6S Models including Limitless V1 Lightweight Speed Spool Complete 51T