Alloy one, fit for brompton birdy pikes
Inlcude: 2pcs clamp , two pcs shim convert to 29mm, 2pcs clear plastic shim, 2 bolts, 2 pcs hex tool. NOT include cage.
Material: aluminum alloy
Weight: appro 27.8g( for brompton), 36g for birdy
Suitable for brompton 3sixty folding bike, or birdy folding bikes
Compatible with 29~ 35mm headpost tube, can mount on head post, birdy appro 41mm
Plastic model:
There have two size
1. 35mm ,fit for brompton 3sixty pikes
2.41mm fit for birdy folding bikes
Weight: 21g