*KeyFeatures *Fit for engines 2-7 HP: This 30 Series forward/reverse gearbox kit is designed for go-karts, dune buggies, UTVs, and other off-road vehicles with #35 chain 12T or #40/41/420 chain 10T. *Adaptation Parameter: This drive clutch adapts to vehicles. Shaft size: 5/8 ", Keyway : 3/16", Forward ratio: 1: 1.3, Reverse ratio: 1: 2.6, RPM: 2300. *Three Shifting Modes: Equipped with a handle, this gearbox offers three easy-to-use shifting modes: Forward, Reverse, and Neutral, allowing for convenient and straightforward operation. *Durable Alloy Construction: Crafted from iron and aluminum alloy, the primary driving clutch replacement boasts a sturdy build with excellent heat dissipation features. *Dynamic Balance Performance: The drive clutch axle is processed for dynamic balance, lowering wear-related imbalances and ensuring smooth operation with minimal noise and vibrations. ******************************************************************************************************* *Specifications Item Model Number: MC30RG10T12T Product Dimensions: 8.3 x 6.7 x 6.3 in/212 x 170 x 160 mm Net Weight: 12.1 lbs/5.5 kg Maximum RPM: 2300 rpm Forward ratio: 1:1.3 Reverse ratio: 1:2.6 Keyway Size: 3/16 in ******************************************************************************************************* *Pakcage Content 1 X Gearbox with 3/16" Keyway 1 x Shifter Disc 2 x Shifter Cable 1 x 06C-12 Sprocket 1 x Full Mounting Hardware 1 x User Manual