Profile Design ATTK XL PSI durable aluminum plate and solid

durable aluminum plate and solid pulley add

the DURA-ACE R9120 levers have a shorter lever stroke

providing fast and precise rear shifting performance (especially during downshifts)

Streamlined and Simple

meeting the demands of modern road cycling

Profile Design ATTK XL PSI durable aluminum plate and solidThe new Extra Large ATTK top tube box allows you to fit even more of your preferred nutrition in a sleek package that tucks out of the wind behind the stem. ATTK XL is designed to improve aerodynamics while offering a streamlined storage solution. The uniquely designed shell allows cables to route straight through to the top tub. Mounting is simple using top tube braze ons on compatible bikes. Features The ATTK XL offers easy access with flexible