Diamondback Bicycles Women's 2015 Lux Sport Hard Tail Complete Mountain Bike Devine designs women's specific fit 6061-t6 aluminum alloy frame with added stand over clearance Designed for 27.5" Wheels which provide great traction and a stable ride Sr sun tour 100mm travel suspension fork helps roll over obstacles Shimano Acera 9-speed rear derailleur provides crisp shifting Shimano hydraulic disc brakes provide intense stopping power