Yakima Frontloader Bike Mount Fully assembled out of the box to fits Yakima round, square, factory and aerodynamic crossbars right out of the box Zero contact with the bike frame while accommodating disc brakes, through axles and full suspension Yakima SKS Locks sold separately. Minimum and maximum crossbar spreads16 48 in Inches Fits 20" to 29" wheels, mountain and road bike wheels Love it 'Till You Leave It Limited Lifetime Warranty.