Introducing The Vault! The strongest billet aluminum transmission door in the Harley-Davidson industry! The bolt flange is over a half inch thick and the center girth is just under 1 inch thick. The 6061–T6 billet aluminum material has been CryoHeat processed, making it 18% stronger while significantly increasing dimensional stability. Weighing in at 2.59 pounds, our transmission side door will be the hero holding down huge horsepower and torque, while at the same time helping your shifting stay buttery smooth.
Designed by: LaHaye Drive Systems
