Product Description Quick release clamp that lives up to its name: The SuperLock2 Seat Clamp by Syntace For all those for whom maximum downhill fun or even just quick height adjustment on the move without tools is important. Technical Information:Material:aluminium (7050)Height:27 mmFeatures:Ergonomic Operation: An extra-long, ergonomic 3D clamping lever and a self-locking adjustment nut make the Syntace SuperLock so easy to grip that it can even be operated with gloves.Tough: The 1 mm copper plate between clamp and lever - instead of slowly-but-surely crushing plastic shims - finally guarantees defined and reliable clamping without wear. Clamping body and clamping lever are made of high-strength aluminium and are shot-peened and anodised.Always in the right place: Extremely practical (optional) anti-twist device via an integrated plastic screw. Can be retrofitted to all frames with little effort by attaching an M5 threaded hole to the seat tube.The frame insurance: the plastic sealing lip integrated into the clamp prevents dirt and water from penetrating between the seatpost and the seat tube of your frame.Models:32 = 27.2 mm: Seat Tube Diameter: 32 mmSeatpost Diameter: 27.2 mmManufacturer Number: 109339 35 = 30.9 mm: Seat Tube Diameter: 35 mmSeatpost Diameter: 30.9 mmManufacturer Number: 109315 35 = 31.6 mm: Seat Tube Diameter: 35 mmSeatpost Diameter: 31.6 mmManufacturer Number: 109322 38 = 34.9 mm: Seat Tube Diameter: 38 mmSeatpost Diameter: 34.9 mmManufacturer Number: 103214 38.5 = 34.9 mm: For powder coated Liteville frames.Seat Tube Diameter: 38.5 mmSeatpost Diameter: 34.9 mmManufacturer Number: 103221Contents:1 x Manufacturer: Syntace GmbH Stefan-Flötzl-Straße 6 83342 Tacherting Germany syntace@syntace.de