Looking to install a brand-new 5-speed gear box assembly into your old Triumph? Our new 5-speed gearbox clusters are made and imported by LF Harris (England) and are ready to be installed. No need to look for a used 5-speed box that will have wear or missing parts

Our clusters come with everything as pictured from the mainshaft, layshaft, gears, camplate, plunger, shift forks, nut, shift fork rod, tab washers, etc – beautifully machined parts ready to be fitted

Fits Triumph 750 unit twins (TR7 / T140), Triumph “Triples” (T150 / T160) and will also fit Triumph unit (and pre-unit) 650 twins that came equipped with a 4-speed gear box. Converting a 4-speed box (twins and triples) may require modifications to adapt, but can be done – check your parts book to ensure the best fitment