Brand-new! UK Made Triumph 18 Tooth Kickstart Ratchet Pinion Gear. It’s time to replace your worn out pinion gear! This is an excellent quality part that is ready to be installed! Fits all Triumph 650 & 750 unit models (Bonneville, T120, Tiger, TR6, Trophy, TR6C, TR7 & T140) from 1963-1983. Fits various Triumph Pre-Unit models from 1949-1962. Please refer to your parts catalog for proper fitment.*Please note that this pinion gear is not compatible with Triumph Unit 350 & 500 models.*Made in the UKO.E.M Part number is 57-0730, T730 and T0730