These Triumph Bonneville T140 con rod bolts are machined from nickel chromium molybdenum hardened and tempered as EN24T alloy steel.

BSA A65 Starter Motor Kit. A complete replacement of the primary drive with a new case and belt drive assembly that runs dry. *Every conceivable part is included with a new clutch shock absorber unit. You will be able to use the original clutch plates. Developed and manufactured by Ark Racing for use on the Birmingham Small Arms Company (BSA) motorcycle unit engines. See website for details.

Triumph T140 Starter Motor Kit. Developed by Ark Racing for use on the Triumph T140, T120 and other Triumph unit engines.

Bespoke engineered and manufactured bike roller-starter assembly. For use in motorsport events were the bike has no built-in starting system.