Kit Joints Externes ROCKSHOX Ultra Basse Friction SKF Non Épaulés 38mm ZEB A1+>2021 ZEB B1 2026 DOMAIN B1+>2022 Boxxer D1+(2024+) No Lindlau This high end rear model features SOFT impermeable This high end rear model features two pistons — in addition to the four pistons on the front model — for optimal braking performance even on the most demanding trails This model is offered as an EC34 upper cup This ROCKSHOX 38 mm ZEB ultra low friction wiper seals and foam rings kit will allow you to replace the seals of your fork leg This kit allows you in particular to upgrade the seals of your ZEB fork version A1 A3 or to replace the original seals of ZEB fork version B1