The Extension Riser Kit for Redshift's Quick-Release Aerobars lets you add up to 22mm of stack height to your aero bar extensions and arm pads. Choose one (15mm) or two (30mm) spacers to dial in your fit and optimize your riding position.
Provides 15mm or 30mm height increase (1 or 2 spacers per side)
Four spacers included (2 per side) and all necessary mounting hardware