Boom Racing 33T/8T Reverse HD Keyed Helical Bevel Underdrive Gear Set for AR44/AR45

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For years, RC builders have had plenty of options for standard underdrive gears, but finding reverse-cut underdrive gears for counter-rotating axle setups has been a different story.

Until now.

Introducing the Boom Racing 33T/8T Reverse HD Keyed Helical Bevel Underdrive Gear Set!

This industry-exclusive design is engineered for strength, durability, and reliable performance in demanding RC crawling conditions. It is compatible with all Boom Racing BRX kits.

Our proprietary triangular keyed bevel gear design ensures positive mechanical engagement, which enhances torque transfer. The reverse-cut helical bevel gears provide smooth and dependable performance, even under load.

33T/8T
Ratio: 4.125:1
Underdrive: 9.1%

This gear set is compatible with all BRX PHAT rear axles and AR44/AR45 differential gear-compatible axle configurations, provided they are equipped with the required keyed locker and reverse-cut gearing.

Key Features: