An all-rounder tyre for rocky or loose, wet or dry trails with dual compound

Product Overview

Overall rating:

Score 7


  • Well priced
  • Good all-rounder
  • A lightweight option


  • Feels a little flimsy
  • Rolls laterally at low pressures


Bontrager XR4 Team Issue tyre review


Price as reviewed:

This product is featured in: Best mountain bike tyres for 2018.

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Bontrager claims the XR4 is a bit of an all-rounder that can handle loose, rocky, rough, wet or dry trails. It has an aggressive-looking tread design, but in reality it’s slightly shallower than most here. There’s more space around the centre and transitional knobs, which improves shedding and performance in mud, but it also exposes more of the casing to punctures. The buttressed edge knobs provide a solid shoulder, but again there are bigger gaps between these knobs, so the XR4 doesn’t have the stability of the High Roller II or Vigilante.

To lessen the risk of pinch-flats, and to add some sidewall support, the XR4 comes with Inner Strength protection, a lightweight reinforcing layer. This also helps with sealing if you decide to run it tubeless, and we had no issues fitting the XR4 or getting the bead to seat correctly.

Like all the best tyres the XR4 is a dual compound with a 55a durometer centre strip and 65a edge knobs.


It’s a medium-weight tyre that is reasonably priced, but feels a little flimsy despite the reinforced casing. It tends to roll at low pressures, but at least it won’t add too much weight to your bike. Just as Bontrager promised, it’s a good all-rounder.


Size tested:29x2.3in