Robinson Racing Products 21T Steel Alloy Pinion Gear 1/8" .6 Mod RRP1121

Robinson Racing 22T 0.6Mod METRIC Pinion Gear RRP1122 (3.2mm Shaft)

Robinson Racing 19T 0.6Mod METRIC Pinion Gear

Robinson Racing 21T 0.6M 0.6MOD Steel Pinion Gear (1/8" bore) 21 Tooth RRP1121

Robinson Racing Robinson Racing Mod 0.6 Metric Pinion Gear (14T) RRP1114

Robinson Racing 21T 0.6Mod METRIC Pinion Gear RRP1121 (3.2mm Shaft)

1/8" 0.6 Mod 21T Steel Alloy Motor Pinion Gear Robinson Racing RRP1121

Tamiya 20T, 21T Metric Pinion Gear Set TAM50356 (3.2mm bore)