Kuryakyn 4351 Premium Driver/Passenger Floorboard Style, quality, function, & adjustability at a price that cant be beat. Switching to floorboards just got easier & with five thoughtfully placed splined mounts, these boards can be fine tuned just right for the rider or passenger. Premium, featuring a brilliant chrome finished base with chrome inlays in the foot pad rubber. Requires Motorcycle Specific Splined Adapter (not included - sold separately)