ICAN 27.5 Carbon Full Suspension Trail/Cross Country Mountain Bike Frame 16.5/17.5/18.5 inch, BSA Bottom Bracket 27.5 full carbon fiber mountain bike frame in UD Matte Finish Cross Country design using a 100 mm travel fork (110 mm combined travel and tire clearance), Trail configuration using longer travel forks Interchangeable 12 X 142 mm Thru Axle or 135 mm Quick Release rear dropout configuration Frame available in Small (16.5 inch), Medium (17.5 inch) and Large (18.5 inch) 165x38 mm shock recommended (RockShox models available) Weight is 1.96 kg/4.3 lbs (+/-45 g/0.1 lbs for the small frame) 2 year manufacturers frame warranty, including shipping