Higher Pressure = More Grip? Schwalbe Albert Radial Trail Pro Review

Words by: Trevor Mejia

What if running higher PSI actually gave you more grip?

New tread patterns show up every season, but a genuinely new transformative tire casing is rare, which is what makes the Schwalbe Albert Radial such a big deal in the mountain bike world right now. Radial construction has been part of the performance conversation in motorsports for decades, with commonality in the car world having 98% of passenger car tires using a radial carcass, but in mountain biking we have largely been riding variations of the same tire concept for a long time until now. 

What "Radial" means for a MTB tire 

Most mountain bike tires are built using a cross ply style layout where the carcass cords sit around a 45 degree angle to the direction of travel, while a true car style radial runs cords at 90 degrees and relies on belt layers under the tread for stability at high speeds. Schwalbe’s MTB Radial is not a full automotive radial, but it moves the carcass cord angle much closer to 90 than 45, specifically to let the tire deform more selectively under the tread, conform to terrain more effectively, and maintain contact with the ground more consistently. Their explanation also points out that the design is meant to stay comparable to a standard casing in lateral stiffness while being more flexible under the tread, and they cite an increase in contact area at the same pressure along with the ability to tune pressure more freely because the casing retains its positive characteristics even as you add air. These are bold claims, but our customers have been raving about the performance so I had to give it a try for myself. 

Specs

This review is specific to the exact setup I have been riding: Albert Trail Pro Addix Ultra Soft in the front and Albert Trail Pro Addix Soft set up in the rear, both in 29 x 2.50. The primary difference being rubber compound. That can be a mouthful but it is important to pick the specific tire for your specific needs on trail. The Albert’s lug shapes remind me the most of a Maxxis Assegai, but the Albert tightens the spacing with siphoned smaller, closer knobs so it keeps rolling speed in check while still delivering a consistent cornering platform. Schwalbe offers the tire in both 27.5” and 29” options in a 2.5” width with the Soft and Ultra Soft compounds. These tires specifically weigh in at around 1180g, which is comparable to a Maxxis EXO+ Assegai for reference. In real world testing the tires measure out to 2.45 inches or 62mm on a 30mm internal width rim and it is a decently tight fit on my test rig Druid V2. 

• Front tire: Schwalbe Albert Radial Trail Pro, 29 x 2.50, Addix Ultra Soft

• Rear tire: Schwalbe Albert Radial Trail Pro, 29 x 2.50, Addix Soft

• Casing: Trail Pro Radial

• Also available as Gravity Pro casing

• Claimed weight: 1180 g (29 x 2.50 Trail Pro versions)

• Weight: 1180g 

• Intended Use: Trail  / Enduro 

• Compound: Addix Ultra Soft / Addix Soft 

Testing and on trail review

I’ve been testing this setup on a Forbidden Druid V2 in Southern California for the last couple of months in dry to hero dirt conditions and even some mud! The kind of fast, loose over hard, and sharp edge terrain that immediately exposes whether a tire is tracking or deflecting, and the biggest learning curve was  definitely tire pressure. At my normal numbers, 23 psi front and 26 psi rear, the tire felt squirmy and unstable, especially when loading it hard in corners, but once I moved to 26 psi front and 29 psi rear the whole package snapped into focus and started doing the “radial” thing. You can feel the casing conforming to the ground, smoothing out chatter, and resisting deflecting off rocks and roots that makes the bike feel nervous or out of control. If you squeeze the tires in the garage, they can feel under inflated even when your gauge says your desired number. That “too soft” sensation is exactly why the pressure conversation matters with radials. A more compliant or light casing means you often need to add air to get back the support you expect, especially in hard compressions and heavy corner loads. Schwalbe’s guidance is basically: start where you normally would for a comparable casing, then adjust, aka go higher. Their bigger point is that the casing retains its compliant, high grip behavior even as pressure goes up, so you can add pressure for support and flat protection without instantly giving up traction. Could I go higher? Yes and I did try that, but then it gets harsh and defeats the purpose a bit. It made me dislike the tires for the first go around but as I dialed in pressures they quickly became one of my favorites. 

Overall my largest takeaway is consistency. The tread pattern leads to grip that doesn’t have any dead spots, with traction all the way to the side knobs in a predictable manner. Rolling speed was a surprise because it carries speed like a faster trail tire especially at a higher psi, yet it does not punish you with that usual harshness and that holds true under braking too, where traction feels controlled and consistent. I’ve had no problem going on big pedal missions with these tires set up on my “light trail” wheelset. On technical climbs, the rear Addix Soft compound has stayed hooked up better than expected as the casing seems to stay connected to the ground. Wear has been a standout: after a lot of miles, it has held up extremely well with limited front tire wear and typical rear wear. After a few months of on and off riding, the tread still feels supportive rather than rounded off and vague. Nothing about the tire will blow you out of the water, it isn’t a cross country tire, nor is it meant for the downhill circuit, but for everyday trail riding it is hard to find a better combo that does it all, which is exactly what I expect out of my trail bike. 

The biggest downside to these tires are in some big load moments, like a jump to flat compression or really driving out of a corner, you can still feel a bit of casing roll, which can be unnerving the first time it happens, and it reinforces the idea that the radial wants more pressure than you might want to run on a conventional casing. I had a hard time coping with this feeling of a rolling casing because the tire gives so much grip that it wants me to push that hard but like any other tire you are still limited by what the casing will give you. This tread also has a clear lane: it is a super consistent trail tire in dry to mixed conditions, but it is not the tire I would choose once conditions get truly extreme. In one instance, the trail got muddy and the tire did not shed very well resulting in a stuck rear wheel and a slow front tire. It was a bail out situation that I learned a valuable lesson on! For normal conditions however these tires excelled. 

Bottom line

If you want a fast rolling trail bike setup that still gives you real confidence and a smooth ride, the Schwalbe Albert Radial Trail Pro is one of the most interesting options I have ridden in a long time. Running the tread pattern front and rear at 26 and 29psi, the tire delivers the rare combo of speed and grip without feeling harsh, plus excellent wear so far, especially up front. That is why I plan to keep these tires in rotation going forward as my go to trail setup on the Druid for the kind of riding I do most, and I will swap to a more specialized option only when I know the conditions or impacts are going to be outside the Albert’s intended lane.