The Bontrager Pro Carbon Seatpost can be used on road or mountain bikes & is available in a wide range of diameters, lengths & offsets, so you can get the perfect setup. A seatpost should do one thing well – hold your seat. The Bontrager Pro Carbon Seatpost does that with a reliable 2-bolt design that lets you swap saddles with ease. Features 2-bolt micro-adjust head mechanism offers 15 degrees of adjustment OCLV carbon fibre shaft Forged 6061-T6 alloy head with OCLV carbon fibre top & bottom clamps Unique clamp shape allows for easy saddle changes Compatible with standard & oversized carbon saddle rails Suitable for road or mountain use