The Air-Liner Protect Downhill tyre insert originates from the most demanding downhill race trails of the UCI Mountain Bike World Series.
Constructed from high-density polymer foam ensuring long-lasting product life, it allows riders to confidently tackle even the most demanding trails and terrains. It provides a robust barrier between the rim and the tire, offering unprecedented protection against punctures, sidewall slashes, and pinch flats.
The Air-Liner Protect Downhill version boasts a higher density foam compared to the enduro version, meticulously engineered to withstand the relentless forces encountered during high-speed descents. Air-Liner Protect Downhill come as a complete loop, eliminating the need for tedious cutting and zipping.
No longer will you fear the wrath of jagged rocks or treacherous roots, for Air-Liner Protect Downhill has your back.
Air-Liner Protect Downhill is made of a proprietary foam specifically designed for donwhill applications. The material is compatible with any type of liquid sealant. It comes in 2 wheel sizes (27.5” and 29”), each compatible with tire size 2.4" to 2.6". It must be used with tubeless set-ups only (not compatible with the use of inner tubes) and with multiway tubeless valves only - a valve is provided in the pack.
Impact Protection
Air-Liner Protect saves the rims from heavy impacts, while reducing the risk of snake bites.
The "T" shape creates a barrier in between the rim edges and the inner side of the tyre.
High Speed
Air-Liner Protect has no negative impact on the tyre rolling speed.
Under air pressure, the insert collapses on the rim creating a seal able to withstand even the strongest impacts.
Lateral Stability
Air-Liner Protect supports the tyre side under the load of cornering.
You can approach turns at full speed: no risk for your tyres to coming off the rim.
Air-Liner Protect also increases the protection of the tyre sidewalls from cuts and punctures.
Air Volume
Thanks to its "T" shape, Air-Liner Protect allows for more air volume inside your tyre than many other inserts.
This means you can lower the air pressure and gain additional grip without any risk of unbeading your tire or damaging your rim.
Run Flat
In the event of catastophic tyre damage and air loss, AirLiner Protect gives run flat support up to 50km.
Wheel size compatibility
Tyre size compatibility
Weight
E-Bike compatibility
27.5"
2.4"-2.6"
175g
YES
29"
2.4"-2.6"
185g
YES
*Please note that our specifications may be impacted by running substitution changes, we highly recommend confirming the specifications of our products at the time of sale. *Recommended Retail Prices are subject to change without notice and may vary from store to store depending on freighting and assembly costs. Please read our Terms & Conditions
*Giant & Liv Bicycles are available for purchase online, but due to warranty regulations, must be shipped to qualified Giant dealers, as bicycles must be assembled by a qualified bike mechanic in an approved store - This is an international policy and usually will require an additional fee to build the bike. This will be confirmed by one of our online staff after purchase of the bike.
*Specialized Bicycles are available for home delivery nation wide.
