Trek Powerfly+ FS Gen 5 Upper Shock Bolt M8 x 40mm Black 27-inch x 1-1/4-inch Compatible with threadless forks only

Compatible with threadless forks only

Custom Fit: Available in multiple sizes to ensure a perfect fit for every rider

X-Horizon design for precise and consistent shifting

The black-on-black stealth design blends in seamlessly with modern carbon frames

Trek Powerfly+ FS Gen 5 Upper Shock Bolt M8 x 40mm Black 27-inch x 1-1/4-inch Compatible with threadless forks onlyFastener Trek Powerfly+ FS Gen 5 Upper Shock Genuine replacement parts Trek proprietary suspension hardware. Key Features First used on Powerfly+ FS Gen 4 Refer to the Service Manual for assembly & service instructions Specifications Color Black Size M8 x 40mm Gender unisex Intended User Age 12 years and over Model Year 2026 Material Components Steel