For Pipes - Handlebars Ø 22 To 28 Mm Right Or Left Side Is Supplied Without Knobs And Throttle Lever, Which Are Ordered Separately. - This Type Of Lever Thanks To A Particular Fixing System, Can Be Mounted On Any Handlebar, Because It Has An Outer Diameter Between 22 And 28 Mm The Lever, Is Equipped With A Retaining Spring That Removes All Those Max I - Vibrations Typical Of An Idling Engine. The Support, The Lever And All The Accessories Have Been Studied And Realized, With Suitable Materials To Always Have The Best Operation In All Weather Conditions And To Last Over Time.