The Good Kind of Tacky - All-Around Trail Grip from Desert to Alpine

The Bontrager Gunnison Pro XR is a 29x2.4 all-around trail tyre designed for mixed condition trail riding across the full range of terrain that mountain bikers encounter - from rocky desert hardpack to high alpine soft dirt. The Pro XR's Trail Dual-Compound uses a medium centre compound for rolling efficiency on firmer terrain and a soft shoulder compound for grip in corners where the tyre transitions from the centre tread to the edge knobs. This combination allows the tyre to roll relatively efficiently in a straight line while providing the tackiness and grip that trail riders need in cornering situations on loose and variable surfaces.

The 2.4-inch width in 29-inch places the Gunnison Pro XR in the all-mountain trail category - wide enough for meaningful volume and compliance at lower tubeless pressures, without the rolling resistance of a wider plus-size tyre. For trail bikes with 150mm to 160mm of travel and riders who cover varied terrain at trail pace, 2.4 inches at 29-inch is a widely used and proven tyre size.

The Tubeless Ready construction allows setup with sealant for lower pressures, automatic puncture sealing, and the improved traction and comfort that tubeless enables at appropriate pressures for trail riding.

• An all-around trail tire that provides grip and speed in mixed conditions from rocky desert to high alpine.
• An all-around trail tread that provides grip and speed in mixed conditions
• Pro XR Construction: 60TPI casing with sidewall puncture protection
• Trail Dual-Compound: medium center and soft shoulder
• Tubeless Ready (TLR) for easy tubeless setup and puncture protection

Pro XR Construction, 60 TPI Casing, and Sidewall Protection

The Pro XR designation identifies a specific construction tier within Bontrager's tyre range - a 60 TPI casing with integrated sidewall puncture protection. The 60 TPI casing provides a balance of casing compliance and durability appropriate for trail riding where the tyre encounters rocks, roots, and varied terrain that places demands on both the tread and the casing.

Sidewall puncture protection is specifically integrated into the Pro XR's sidewall - reinforcing the vulnerable area between the tread edge and the bead where trail debris, rock impacts, and sharp edges most commonly cause tyre failures. For trail riders running lower tubeless pressures where sidewall compliance is part of the tyre's performance character, sidewall protection maintains that compliance while adding resistance to the cuts and punctures that lower pressure sidewall running is more vulnerable to.

Trail Dual-Compound - Medium Centre, Soft Shoulder

The Trail Dual-Compound specification uses two rubber compounds in a single tyre construction. The medium durometer centre compound covers the central tread area that is in contact with the ground during straight-line rolling - a harder compound that reduces rolling resistance and extends tread life in the highest-wear area of the tyre. The soft durometer shoulder compound covers the outer edge knobs that engage the ground during cornering - a softer compound that provides the increased grip and conformity to loose, rough, and variable surfaces that cornering traction demands.

This dual-compound approach is the standard for a performance trail tyre in this category - delivering more total grip across the ride than a single compound tyre that must compromise between rolling efficiency and cornering grip.

FAQs

What terrain is the Gunnison Pro XR designed for?

The Gunnison Pro XR is designed for mixed conditions from rocky desert hardpack to high alpine soft dirt - an all-around trail tyre that performs across the full range of terrain that trail riding involves rather than being optimised for a single specific condition.

What is the Trail Dual-Compound?

Trail Dual-Compound uses a medium compound in the centre tread for rolling efficiency and a softer compound in the shoulder knobs for cornering grip. This combination provides more grip across the full ride than a single compound would allow - rolling efficiently on firm terrain in a straight line and gripping effectively on loose and variable surfaces in corners.

What is Pro XR construction?

Pro XR is Bontrager's construction tier using a 60 TPI casing with integrated sidewall puncture protection. The sidewall reinforcement protects the vulnerable area between the tread edge and bead where debris and rock impacts most commonly cause tyre failures on trail riding.

Is the Gunnison Pro XR tubeless ready?

Yes. The tyre is Tubeless Ready for easy tubeless setup with sealant - providing lower pressure capability, automatic puncture sealing, and the traction and comfort benefits of a tubeless trail tyre setup.

What width and wheel size is this tyre?

This listing is for 29x2.4 inches - a 2.4-inch width on a 29-inch wheel, the standard trail tyre size for modern trail and all-mountain mountain bikes with 29-inch wheels.