Diamondback Bicycles Clarity ST Women's Performance Hybrid Bike, Blue High quality aluminum frame with vertical compliant stays soak up some of the road vibration leaving you with a smoother ride Shimano 3x7 shifters give you 21 speeds to choose from Alloy linear v-brakes make stopping a breeze Women's specific frame is made to better fit women's dimensions 700c wheels keep you rolling at a good pace while the 32c wide tire stays stable on the pavement