BIKE SEAT POST CLAMP LIGHTWEIGHT ALLOY 28.6/ 31.8/ 34.9mm MTB ROAD BICYCLE UK
• You can adjust the clamp on the way even without any other tools. -31.8mm hollow seat tube clip use for 27.2mm/28.6mm seat tube. -34.9mm hollow seat tube clip use for 30.4/30.8/30.9/ 31.6mm seat tube.