During the development of the WP AER 48, WP benchmarked the AER system with conventional systems, which use spiral springs. Both systems showed different advantages, which were each favored by different riders. In order to provide both options, WP has decided to also provide a retrofitting kit, which simply allows rebuilding the AER 48 technology into a conventional system. With this kit, the AER 48 air cartridge on the air fork leg is replaced with a spring cartridge kit. All functionalities remain at the same level, with the feeling and functionality of the conventional system. The damping side remains unchanged. Single leg spring conversion kit for 2021-2022 TX/FX Models.
Same performance as the air spring fork, but uses conventional coil spring system
We have included spring rates to choose from with this product. To capture the true technology of this spring conversion system, a proper spring rate for your weight needs to be provided. See the chart below to determine the spring rate you need according to your bike. Have any questions? Please CONTACT US HERE and we can get you sorted out!