Sitting between the XC and Pro inserts, CushCore Trail inserts offer progressive sidewall support to give you confidence when cornering hard. CushCore inserts are more than just impact absorbing foam hoops like other tyre inserts. Attention to the profile of the insert add useful features like improved sidewall support without making the tyres feel "wooden". CushCore inserts also have material removed when it's not required in order to save weight, and valve cutaways let the insert lie flat against the rim. Most riders probably know about the benefit of running inserts to save tyre and rim damage when the suspension takes big hits, but CushCore also have research data that shows using their tyre inserts help your suspension work better through medium hits, where the tyre inserts isn't deformed enough to be protecting the rim. Basically, CushCore equipped tyres absorb bumps better than tubeless only set-ups. The proprietary closed-cell, polyolefin foam controls compression and rebound forces. It's lightweight, ultra durable and impervious to sealant. CushCore's patented shape applies pressure to the tyre sidewalls, supporting the tyre when you push hard and preventing the tyre from "burping". The support is progressive, the harder you push in corners, the more the inserts support. Kit includes: 2 x inserts 2 x 44 mm valves, Valve core tool, Instructions and stickers. Suits tyres from 2.1"- 2.6" and internal rim widths of 22-35mm. Weight 27.5 199g per tyre. 29" 212g per tyre. Impact Protection: CushCore absorbs impacts which might otherwise damage wheel rims. Absorbs shocks and vibration: Reducing fatigue. Cornering Stability: Reinforces the tyre sidewalls,preventing tyre roll in hard cornering. Lower Tyre Pressure: Reducing the volume inside your tyres allows you to run your tyres at lower pressure for more grip. Reduces Flats: Prevents pinch flats by absorbing impacts between the rim and the tyre. More Grip: Lower pressure allows for a bigger tyre footprint.