Ever tried to mount a Vintage bike or MTB with a sloping top tube to your car rack? If yes, you'll already know what this adaptor is for.A no brainer for riders who need to carry full suspension bikes, kids bikes or ladies bikes in fork style car racks. The rubber around the grippers prevents damage to the bike. Quick release Weight capacity 15kg Dimensions: 620 x 80 x 40mm (L x W x D)