MFactory B-series Close Ratio Gears

Achieve the ultimate in acceleration with the MFactory Close Ratio Gears. MFactory close ratio gears allow for the fine tuning of the acceleration properties of your transmission.

Diamond Cut to exacting tolerances from Forged High-Nickel-Chromium-Molybdenum Steel
Perfect fitment & finish ensures hassle-free installation & maintenance, each and every time

Designed using leading-edge Solidworks 3D CAD & Cosmos FEA software
Advanced Gear Geometry minimizes parasitic drivetrain losses. Race transmissions built with MFactory components transfer, on average, 1-2% more power to the ground!

Dual-Cone Carbon-Composite Synchro Technology for Honda B-Series
An Industry First! Taking 21st Century technology from the Honda K-Series and applying it to the Honda B-Series, this ensures quicker and more precise shifting at higher rpm's in 3rd & 4th Gears

Please note: Some MFactory Competition products are often drop shipped from the factory in Taiwan and can take 2-4 weeks to arrive.