How is the Quick Release System 2 (QR2) different from the older QR1 version?

The QR2 system is a complete redesign of the previous QR1 system, created to improve performance, durability, and ease of use.

While it is based on the same (electrical) connector concept, QR2 features a more squared-off design and a significantly improved mechanical structure. The goal of the redesign was to deliver a more ergonomic wheel change experience while increasing stability, reducing backlash, and minimizing noise for a more solid and consistent connection. QR2 is designed to meet higher performance standards.

Please note that QR1 and QR2 are not compatible with each other. Upgrading to QR2 may require both wheel-side and base-side components to be updated. QR2 upgrades are available for selected wheel bases such as the Podium DD1, Podium DD2, CSL DD, and GT DD series. The newer ClubSport DD and ClubSport DD+ wheel bases already come equipped with QR2 Base-Side as standard.