Towbar mounted bike rack loading capacities 2 bikes 2 electric bikes installation tow bar load capacity 60 kg weight 172 kg rack attachments wheel rim clamp frame clamp features for carrier for bike tail light led rear lights functions tilt function foldable extendable dimensions w x h x d 125 x 67 8 x 68 6 cm frame diameter max 80 mm max reifenbreite 60