Stainless Steel TRX4M Overdrive Underdrive Transmission Gear Pinion Set for 1/18 RC Crawler Car TRX4-M Upgrade Parts

Stainless Steel TRX4M Overdrive Underdrive Transmission Gear Pinion Set for 1/18 RC Crawler Car TRX4-M Upgrade PartsFeatures:CNC machinedStainless steel materials9.7/1 overdrive gears increase speed approx 71%16.6/1 gears do not change the speed, same as stock40.3/1 underdrive gears decrease speed approx 59%Specifications:Material: Stainless SteelOverdrive Gears: 9.7/1Underdrive Gears: 40.3/1Stock Gears: 16.6/1Weight: 15gPackage List:1 Set Transmission Gears

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