GPM Hardened Steel 56T 32dp/0.8Mod Spur Gear & 15T Pinion w/ Grey Aluminium Slipper Adapter

TRAXXAS Slash 4x4 Aluminium Gear Adapter With Steel 32 Pitch 56T Spur Gear & 15T Motor Gear - 1set (For Slash 4x4 Low-cg 68086-21 Version) - GPM SLA155615TLG

Spur gear and motor gear made by hardened steel match with aluminum adapter to improve the power output to be more consistent.
(56T with 13T=1:4.307)
(56T with 14T=1:4.000)
(56T with 15T=1:3.
(56T with 16T=1:3.500)
(56T with 17T=1:3.294)
(56T with 18T=1:3.111)
(56T with 19T=1:2.947)
(56T with 20T=1:2.800)