Spec: SHIMANO Di2 seat post battery fixation TPR L: 68mm for alloy seat post
Size: For 27.2 or 31.6mm seat post
Weight : 14g / for 27.2mm seat post
Spec: SHIMANO Di2 seat post battery fixation TPR L: 68mm for carbon seat post
Size: For 27.2 or 31.6mm seat post
Weight : 13g / for 27.2mm seat post
