The RockShox SIDLuxe Ultimate is RockShox's top-tier rear shock for XC and trail riders who demand the lightest, most responsive suspension available. This 190x42.5mm variant suits frames specifying a slightly shorter stroke, delivering the same race-proven SoloAir performance in a size-matched package.

• SoloAir spring for a light, supple feel with simple air volume tuning
• 1 air token included to fine-tune ramp-up and bottom-out resistance
• 3-position compression lever (Open/Mid/Lockout) for fast on-the-fly adjustments
• Reb85/Comp30 factory tune balanced for XC and trail use
• Standard Standard eyelet mount for broad frame compatibility

The SoloAir design keeps weight low while still allowing meaningful volume adjustment via the included token. The 3-position lever lets you switch between open, mid-firmness, and full lockout without releasing the bars — fast and intuitive across mixed terrain. MidMode and Lockout firmness are set to 8 from the factory.

Compatible with frames specifying 190x42.5mm Standard Standard rear shock mount. Includes blue decal kit. Verify your frame's specific shock sizing and eyelet standard before ordering.