ARRMA 21T Mod1 Pinion Gear, ARA310482This super tough steel 21T MOD1 Pinion Gear provides a direct replacement for your stock item. FeaturesStrong and durable steel for long lasting performance in extreme RC conditions Precision manufactured tooth profile for smooth operation Precision manufactured double set screw holes for the fitment of set screws either side of the motor shaft for extra secure fitting For fitment to 5mm motor shaftIncludes1 x Steel 21T MOD1 Pinion Gear2 x M4x4mm Set
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