These handlebar shims, or reducers, allow you to run 7/8" bars in 1" risers or stock Triumph motorcycle p-clamps. Simply place them in your risers with your bars, tighten down and you are good to go. These pieces are how the stock Triumph p-clamps with a 1" inside diameter took the factory 7/8" handlebars. Factory shims, seems a bit strange but that is how it was done! These will work with any 1" riser / 7/8" handlebar combo, allowing you to run some cool 1" risers on your bike but still use your 7/8" bars, keeping the same throttle, controls, etc. Four pieces per set. Triumph OEM # 97-1425. Find your at Lowbrow Custom store now.