ULTIMATE USE Evo Seat PostThe ULTIMATE USE EVO is its lightest seat post and being and inline type, it ensures that bike geometry is not compromised. Available in 3K matt carbon or stealth matt UD carbon, it's suitable for both road racers and cross-country racers alike.Features: Material: Carbon Fibre Finish: UD or 3K carbon finish Rail Clamp: Standard two-bolt for 7x7mm rails Layback: 0mmBuy ULTIMATE USE Components from Chain Reaction Cycles, the World's Largest Online Bike Store.