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Replace the air piston in your Sapphire D1 fork to restore pressure stability and smooth travel
Refer to torque specifications in the service documentation for safe installation
To manage harsh impacts near full travel
While we are happy to assist with hardware selection
Racing Brothers Modi Fork Seals 40mm Flangeless Size:40mm (Flangeless) Replace the air piston inThese Racing Brothers Modi Fork Seals feature a 40mm flangeless design that enhances small bump sensitivity and reduces friction, perfect for modern Fox 40 and select RockShox Boxxer forks. They sit flush inside the fork leg and require careful installation for best results. Compatibility: Compatible with Fox 40 (2017 onwards) and RockShox Boxxer (2016 onwards) forks. Installation Notes: Flangeless seals should be installed using a seal driver tool to
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