Seatpost Bontrager Pro 31.6 x 400mm 15mm CarbonA seatpost should do one thing well hold your seat. Our new carbon fiber Pro seatpost does that and more with a reliable 2 bolt design that lets you swap saddles with ease. Great for road or mountain use and available in a slew of diameters, lengths and offsets, this post gives you the setup versatility youve always wanted. 2 bolt micro adjust head mechanism offers 15 degrees of adjustment OCLV carbon fiber shaft Forged 6061 T6 alloy head with OCLV