The Jamis Trail XR frame is made from high strength, hi-tensile steel and is offered in 8 sizes for the best possible handling and comfort. The straight bladed tubular unicrown fork is lighter than a suspension fork, providing responsive steering and allows the bike to be suitable for city living by easily lifting the XR into the subway or up apartment stairs. SRAM's mid cage X3 rear derailleur offers reliably quick shifts. The XR 21-speed SRAM twist-shift drivetrain shifts intuitively and smoothly. The 2011 Trail XR is intended for the beginner cyclist or weekend adventurer. The bike is suitable for junior riders aged 9 and up, to adults, being available in many sizes. The Jamis Trail XR 2011 s available in blue, grey and white.