Features: Aluminium alloy material, high quality, long service life. Convenient design, simple installation. 31.8mm clamp fit for 27.2/28.6mm seatpost. 34.9mm clamp fit for 30.4/30.8/31.6mm seatpost. Specification: Model: GUB CX-18/49 seatpost clamp Material: Aluminium alloy Color: Black,Red Size: 31.8mm, 34.9mm (optional) Weight: 40g,approx Package includes: 1 * Bike seatpost clamp.
