Triumph 650 Unit Twins Front Drive Sprockets - 1964-72 - Choose Sprocket Size Commando 4" eye-to-eye with a 100lb

4" eye-to-eye with a 100lb spring with a 3/8" top and bottom bushing

Firebird Scrambler & Thunderbolt) from 1969-1970

*****Please check the measurements below to ensure the Best Fitment

This Screw & Spring Set makes it easy for your to adjuster your idle

Triumph 650 Unit Twins Front Drive Sprockets - 1964-72 - Choose Sprocket Size Commando 4" eye-to-eye with a 100lbReplace your worn out front drive sprocket with a high quality EMGO sprocket. EMGO sprockets are affordable and just as good if not better then than the expensive "English" types. Sprocket accepts a standard 530 or 5 8" X 3 8" chain. Fits all Triumph 650 unit twins (Bonneville, T120R, Tiger, TR6, etc) from 1964 1972 with the 4 speed gear box. Also fits Triumph and BSA triples from 1968 1972 with the 4 speed transmission. Please refer to your parts