The RockShox SID Ultimate Race Day 29" Debon Air Remote 15x110 BOOST 120 mm fork is the lightest and fastest XC fork on the market, without argument. SID SL Ultimate presents the lightest shock ever made: the Charger Race Day.

- Application: XC/Marathon
- Wheel size: 29"
- Suspension type: Air
- Travel: 120 mm
- Head tube: 1 1/8" - 1.5" tapered
- Axle type: 15 x 110 mm thru axle
- Brake mount: PM6 disc (160 mm direct mount)
- Offset. 44 mm
- Head tube length: 230 mm
- Head tube diameter (stem): 28.6 mm
- Head tube diameter (Crown Race): 40 mm
- Crown axle: 506 mm
- Stem diameter: 32 mm
- Head tube material: Aluminum
- Crown material: Aluminum
- Compression: 2 positions (open/locked) via remote
- Remote control OneLoc
- Maximum tire size: 29 x 2.3"
- Maximum rotor size: 200mm
- Charger Race Day lightweight damper cartridge with full lockout
- DebonAir air spring keeps the fork springy in racing for optimal control
- 32 mm diameter upright tube for low weight
- Maxima Plush suspension fluid for low friction and quiet performance
- Low friction SKF wiper seals for long life and a good suspension behavior
- Milled and anodized fork crown
- Also suitable for e-bikes
- Outer diameter fork crown: 56 mm