These replacement High rise clip ons are fabricated from 304 stainless steel . They give a 40mm rise from standard. The come pre drilled for the switchblocks , the oem end weights / mirrors are retained and they can be used with the oem heated grips. A longer clutch cable off the Triumph Street twin must be purchased separately to be able to fit these. Full fitting instructions provided. These Tourin Bars also come in a 25mm higher option.