Key features

• •High-Strength Material: EVOSID bike seat post clamp is made from AL7075 aviation-grade aluminum alloy, fully CNC-processed with smooth edge chamfering for refined finish. Offering superior strength and high corrosion resistance
• •Size: Our seat post clamp has two sizes for you to choose from, the 31.8mm clamp fits seatpost with 27.2/28.6mm outer diameters; the 34.9mm version supports 30.4/30.8/30.9/31.6mm seatposts, offering wide applicability across various frames. You need to confirm the seat post label or seat post size before purchasing the seat post clamp, and finally choose the appropriate bicycle seat post clamp.
• •Lightweight Design: Weighing only 12.8g (31.8mm version,) and 13.9g (34.9mm version)—making it ideal for weight-saving builds. Designed with a hollow structure to reduce weight while maintaining strength, not easily deformed after long-term use
• •Easy to Install: Bike seat clamps is engineered with a reliable bolt-on design to ensure the seat post stays firmly in place, offering safety and stability during rides. Tube clip is easy to install and simply secure with a 4mm hex head key
• •Broad Compatibility: Our seat post clamps are suitable for all types of bicycles, including road bikes, mountain bikes, folding bikes, etc.