Bontrager

XR4 Expert is the Tubeless Ready mountain bike tire with an aggressive tread that meets the demands of loose and rocky trails. It's the right rubber for gnarly cross country trails in wet or dry weather where quickness in the corners is the difference between making or missing the podium.

Key features

- Aggressive tread provides confident traction in demanding terrain
- Excels in loose and rocky conditions
- Tubeless Ready (TLR) tire is engineered for easy tubeless setup and puncture protection
- Inner Strength casing is lightweight sidewall protection that's supple and strong