- 31.8/34.9mm CaliberThe 38.1mm bike seat post clamp is suitable for 27.2/28.6mm bike seat post and the 34.9mm clamp is suitable for 30.4/30.8/30.9/31.6mm bike seat post.
- High-strength Aluminum AlloyROCKBROS bike seat clamp is made of high strength 6061 aluminum alloy. Make the bike clamp more sturdy and durable.
- Rust and Corrosion ResistanceThe bicycle seat post clamp adopts oxidation process. Corrosion resistant, less prone to rusting and be able to stand wear and tear.
- Easy to InstallThe bike tube clamp is available in quick-release and locked styles.The quick release seat post clamp requires no tools and is easy to install and disassemble.
- Hollow & LightweightThe application of hollow design gives the seat tube clip a lightweight feature.Will not add weight to bicycles, making it easy for you to ride.