RWS provides a secure and secure lock that is most important to functionality. Unlike common quick releases, the RWS employs a system that generates tightening torque through the bolt connection of the lever and shaft. To tighten the lever clockwise by hand (min 15Nm hand force). Depending on the frame or fork structure, the lever can be flipped and closed by several times. Finally, the lever stays in the perfect position. RWS provides up to 50% higher tightening torque compared to regular quick releases. This not only increases safety, but also makes the connection between the wheel and the frame/fork a more solid and more rigid as a whole bike. Steel shaft; Compatible end width: 5.3 inches (135 mm); Weight: 2.0 oz (55 g); Product color may appear different from the actual product depending on your display settings. Product specifications, logo design, etc. may be subject to change for product improvement. We also cannot answer measurements or personal fit that the manufacturer does not announce.