Cycling MTB Bike Bicycle Aluminum Ultralight Quick Release Bike Seat Post Seatpost Bike Clamp 31.8mm QR Style New Seatpost Clamp Aluminium Alloy Bicycle Seat Post Clamps - 31.8mm Alloy seat post clamps with quick release 31.8mm sizing refers to the outside diameter of your frame's seat tube - these typically use 27.2mm seat posts but check dimensions before ordering Sold individually in five vibrant colours: black, red, blue, gold and silver Unbranded - no odd brand names or logos Weight 38g Material: aluminium alloy Condition is New Please measure carefully before ordering. >>> Australian Stock for Fast Delivery <<< All listed items are in stock in Melbourne and ready for immediate dispatch. We do not drop ship so you will receive your item within days, not weeks. Please check out my other bike parts and accessories