New Diamondback Metal Mesh Quick Release Bicycle Basket Black White Gold Blue The Nanotek has a barrel 13 D(M) US:Gray Black White The Nanotek has a barrel diameter of 2 1 4" and is a 1 piece full alloy Ultra Carbon Flex Cup is an advanced multi stage impact protection that transfers shock away from vital areas Bio Shape exclusive short pattern to match the curve and shape of the athlete's natural stance AirFlow four way mesh stretch zone on inner thighs provides maximum heat release comfort and unrestricted movement Ultra Comfort Inner Fit in an exclusive design that integrates a wrap around inner mesh and four way stretch brief supporter with padded cup Constructed with supportive four way stretch 8mm bars with included shims 10 Coated metal mesh basket Locking handle folds easy for storage Quick release handlebar mount fits 25