WTB Judge tyre review: Rear specific option for tough trails

The Judge is aimed to provide aggressive gravity-focused riders with the maximum grip no matter what the trail hallmarks, and just looking at the Judge’s aggressive and oversized tread pattern made us eager to search for the grip limit on our most demanding test tracks.

Design

The Judge is available in WTB’s ‘Tough’ and 'Light' sidewall casing options. Essentially, it is a dual ply casing made up of two 60tpi layers. Our Tough test tyre topped the scales at a hefty 1381g (but lighter than WTB’s claimed 1427g).

The tread pattern is made up of seriously chunky side knobs, which are claimed to enthusiastically cut the dirt in every direction across a wide range of riding conditions. These are paired with centerline knob companions that alternate between long and wide with the aim of balancing rolling speed and braking traction. Interestingly, when inflated, the overall tyre shape looks more squared off than most, which in practice, with its rear-specific focus, makes total sense for the rear wheels' less profound lean angle during cornering when compared to the front. Measuring at 2.37’’ when inflated to 20psi on our 30mm rim brings the Judge acceptably in line with WTB’s claimed 2.4’’ width.

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While the tyre was originally available in two compound options, ‘High Grip’ and ‘Fast Rolling’, only High Grip seems to be available now. The Judge utilises WTB’s ‘TriTec’ rubber technology. ‘TriTec’ is a blend of three rubber compounds made up of a firmer rubber across the base of the tyre which is said to stabilise the knobs and prevent any squirming under high load forces, on top of this is medium stiffness centre knobs which offer the desired rolling speed, traction and longevity balance, while slow rebounding and softer still side knobs are said to deliver reliable grip for g-force cornering.

Like most other WTB tyres, we also see TCS tubeless technology featured here. In practice, these tyres seem to take more effort to seat than most other brands of late. It’s the first tyre in while we haven’t managed to successfully seat with only a track pump. Other than the initial ‘pop on’ struggle, they always seem to remain reliable and hold pressure well throughout testing, though.

Performance

Let’s cut to the chase, if you’re looking for a tyre to maximise your all-day rolling efficiency, then this probably isn’t the best option for you. Within the first few pedal strokes, you’re hit with rolling speeds comparable to the most sticky compound, DH-rated tyre options. There’s no avoiding that the increased weight from a chunky construction and soft rubber blend means the Judge requires more effort to reach the trailhead; however, should you encounter any technical sections or steep pitches during the climb, it does a stellar job of cutting the dirt, finding purchase and propelling you forward.

Get it up to speed on the way down and the slow-rolling nature feels less apparent. The overall feel of the dual-ply casing is excellent, and when compared to older WTB tyres, the feel is more alive and less wooden as it conforms over trail features. During aggressive, hard-charging riding, the levels of protection on offer from WTB’s casing feels really reassuring and not once during testing did we experience a full tyre bottom out, even when experimenting with lower-than-normal tyre pressures. This makes the Judge a great option for hard-charging riders or racers who rank protection highly and don’t want the added complications of tyre inserts.

The meaningful side knobs provide maximum hold when leaned over, even in damp and loose loamy terrain, and the transition from upright to the cranked over ragged edge hits the progressive sweet spot, showing no signs of unclear traction. Braking remains effective and predictable with even North Yorkshire’s claggy clay clearing the tread swiftly. Essentially, the Judge never does anything weird and remains predictably reliable on every trail surface we placed in its path.

As a result, with all of the traits and features combined, we think the Judge in this configuration should really pair well with the best electric mountain bikes, whose riders like to ride hard. The ability to bite into soft trail surfaces means climbing characteristics are exceptional, it’s hyper grippy on the way down to and the high levels of protection and willingness to slow down will suit the heavier bike. So far, the Judge is showing no obvious signs of wear, so we expect it to last well too.

Verdict

The Judge may not release the right endorphins on the climbs, but the premium grip properties and high levels of protection make it a strong contender if you’re a gravity rider on the hunt for a year-round rear tyre that grips like stink and won’t flinch when you give it hell.