They fit a range of brakes and are available in 2 different compounds:

Size: 20 x 25 x 66

The narrow side allows clearance for mud and debris which reduces friction

SKF low friction dust wiper seals

seam taped to offer excellent all round weather-proofing

Thule Bike Frame Adapter Images Uploaded - Ready for Review They fit a range ofIf you have a bike with an unusual frame design, a step through frame or any other frame that you find difficult or too sensitive to mount on your hanging bike carrier, then the Thule Bike Frame Adapter will help. Designed to sit between your bike's seat tube and headset, the Thule Bike Frame Adapter provides an alternate top tube from which you can hang your bike on any hanging bike carrier. The sprung loaded hooks extend to accommodate bikes from