The Tubliss 18" & 19" Rubber Spacer Block (DR1) is designed for use with the Tubliss tubeless-in-a-tube system — providing the correct-dimension rubber spacer that sits between the Tubliss inner tube and the rim lock to prevent the high-pressure inner tube from being pinched or damaged at the rim lock contact point.

The Tubliss system allows off-road riders to run their tyres at very low pressures (1–3 PSI) for exceptional traction on technical terrain, while the sealed inner tube protects the rim. The rim lock is essential for preventing the tyre from rotating on the rim under hard braking and acceleration — but without the rubber spacer, the high-pressure Tubliss inner tube is vulnerable to pinching and damage at the rim lock's contact point. The DR1 spacer eliminates this by providing a cushioned interface between the rim lock and the inner tube.

Fits 18" and 19" wheels as specified for use with the Tubliss system.

Features:

• Tubliss-specific rubber spacer — prevents inner tube pinching at rim lock
• Fits 18" and 19" wheel sizes
• Enables safe Tubliss operation at low pressures on technical terrain
• Protects the Tubliss high-pressure inner tube at the rim lock contact point
• Genuine Tubliss DR1 replacement spacer

Designed for use with the Tubliss tubeless system only.