This motor gear is an RC-scale replacement pinion forged from 20Cr steel with a black hardening treatment to improve wear resistance in transmission setups. The item is available in tooth counts from 13T to 20T, uses module 1.0mm teeth with a 5.0mm motor bore, and fits a round shaft secured by two 4x4 set screws for a standard clamp-style installation.
Fit this pinion when you need a tough direct-replacement for ARRMA and TRAXXAS 1/8-scale drivetrains that match the listed specs. Always confirm your existing pinion's tooth count, module, and bore size before ordering so the part can be installed without modification.
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