Transmission undercutting is a critical process that ensures positive gear engagement, by reducing the chance of your machine slipping out of gear. Street riders, drag racers, and road racers can all benefit from transmission undercutting, which can be performed on the up side of your gears, as well as the down side (more common for road racers to do both directions). Orient Express uses specially engineered fixtures and custom mills to ensure precision and accuracy with every cut. If your transmission is slipping out of gear under acceleration you should consider under cutting as well as a general transmission inspection before your next event. Call or email Orient Express for pricing and quick turn around. Some transmissions are on the shelf ready to ship immediately - please ask!