Engineered Tubeless Foam Inserts  

Impact Damping | Sidewall Stability | Maximum Rim Protection

Upgrade your ride with precision-engineered foam inserts, designed to be mounted inside your tires for enhanced control, comfort, and speed. Perfect for riders using mullet (MX) wheel setups—29" front and 27.5" rear—these inserts significantly improve your bike's performance by absorbing impacts, reducing vibrations, and increasing lateral stability.

Compatible with tubeless-ready or tubeless-converted rims and tires, these inserts feature a dual-zone internal design: air remains beneath the tread for natural ride feel and responsiveness, while the insert hugs the rim to provide unmatched support and rim protection. Unlike traditional foam systems, these inserts do not absorb sealant, ensuring consistent performance and easy maintenance.

Key Features:

• Optimized for Mixed Wheel Setups – Designed for 29" front / 27.5" rear wheels.
• Insert Divides Air Volume – Maintains tread contact feel while reinforcing sidewalls.
• Includes Custom Tubeless Valves – Specially designed for uninterrupted airflow around the insert.
• Sealant-Compatible & Non-Absorptive – Works with all standard tubeless sealants without degrading performance.
• Straightforward Installation – Comes complete with valve cores, instructions, and rim stickers.
• Prohibited for Third-Party Resale – Not authorized for Amazon.com or other reseller platforms.

Tech Specs:

• Package: Set (for mixed wheels – 29” front, 27.5” rear)
• Wheel Size: 29"/27.5" (Mullet/MX)
• Compatible Tire Width: 2.1"–2.5"
• Compatible Rim Width: 22mm–35mm internal
• Weight: 212g
• Included:
  • 2x Foam Inserts
  • 2x Tubeless Presta Valves
  • Valve Cores
  • Installation Instructions
  • Rim Stickers

Why Choose These Inserts?

Perfect for enduro, trail, and aggressive all-mountain riders, these inserts give you race-proven benefits—from more confidence on descents to better efficiency on climbs. If you’re running a mullet setup and want fewer flats, more control, and faster recovery on rough terrain, these inserts are the upgrade you’ve been waiting for.