RockShox Upgrade Kit For. SID C1 + D1 35mm

Unlock smart suspension on your XC/trail bike with the RockShox Flight Attendant Race Day 2 upgrade kit. Designed specifically for SID C1/D1 (2021+) 35 mm forks, this conversion replaces your existing damper with a complete FA RD2 damper featuring an integrated control module. This innovative setup allows the fork to automatically manage compression based on rider input and terrain, enhancing your ride experience. The kit comes with a removable SRAM AXS battery and charger, enabling you to pair it in minutes, customize bias, and keep firmware up to date via the SRAM AXS app. Enjoy the lightweight, efficient feel of Race Day 2 combined with the intelligence of Flight Attendant—more speed, less hassle.

- Official Flight Attendant RD2 conversion for SID 35 mm (C1/D1, 2021+)
- Includes complete damper + control module, AXS battery, AXS charger
- Automatic electronic compression control with FA modes & bias tuning
- Lighter, race-focused Race Day 2 architecture for fast XC/trail riding
- Integrates with the SRAM AXS ecosystem (app setup, updates, battery sharing)
- Clean cockpit—no lockout cable; tidy, modern build

Specifications
Brand: RockShox
Model: SID C1 + D1
Type: Upgrade kit
Diameter: 35 mm
Weight: 108 g
Color: Black