Trail Running Shoes

Asics Fuji Speed 2 Review: A Fast, Racy Trail Super Shoe That Costs Less Than the Big Names

A carbon-plated trail racing shoe with a nimble road-shoe feel, strong grip, and a fit that rewards narrower feet. Here is what it does well and where it falls short.

Asics Fuji Speed 2 trail running shoe shown in three-quarter profile on a concrete surface

Introduction

The Asics Fuji Speed 2 is the brand’s carbon-plated trail racing shoe, and it is one of the more quietly interesting entries in the fast-growing trail super shoe category. While the headline releases from other brands have grabbed most of the attention, the Fuji Speed 2 quietly undercuts them on price while delivering a genuinely fast, road-like ride on runnable trails.

It launched in the UK at 160 pounds and, at the time of writing, is not yet available in the US. In my UK size 9 (US 10) it weighs 257 grams, about 9 ounces, with a 5mm heel-to-toe drop. No official stack height has been published, but it sits fairly high, part of a new breed of trail shoes borrowing stack from road racing shoes.

Trail runner moving fast along a dry, runnable forest trail in soft morning light

Who This Product Is For

The Fuji Speed 2 is built for runners who want a fast, nimble shoe for racing and hard training on mild to moderate trails, typically up to marathon distance. It is especially appealing if you like doing road-style workouts off-road, or if you want a racy trail option without paying the premium that most trail super shoes command.

Main Strengths

Ride and Midsole

The midsole uses FF Blast Plus foam, which is not Asics’ top-tier FF Turbo foam found in its fastest road shoes, but it is still lightweight and reasonably bouncy. A carbon plate runs through the midsole to add pop, and Asics’ guided sole rocker shapes the ride into something smooth and rolling.

The combination of foam and plate produces a fairly firm, propulsive feel underfoot. The rocker is very noticeable, making it easy to keep picking your feet up deep into hard runs, whether you are grinding up a long hill or trying to hold pace on flatter ground late in a session. It reminds me of fast road trainers like the Asics Magic Speed 3 or the Saucony Endorphin Speed line: not aggressively bouncy, but quick, fluid, and designed for speed. On tired legs, that nimble turnover is a real asset.

Upper and Fit

The woven upper has a gusseted tongue, plasticky reinforced overlays protecting the toes, a padded heel counter, a pull tab at the back, and a lace garage. The fit is best described as narrow and racy. Length was fine, but the midfoot and toe box are noticeably slimmer than most trail shoes, closer to a cross-country spike fit than a typical roomy trail shoe.

On narrow feet, that is a compliment. The shoe feels dialed in and secure, with no lateral movement when running hard on twisting singletrack. The textured laces hold their knot perfectly, so once you have your fit, it stays locked for the whole run. The non-stretch toe box material looked stiff out of the box but felt fine once the foot filled it out, and it is impressively breathable, with real airflow moving through the front of the shoe on dry days. Expect soggy feet in wet conditions, though.

If you have wide feet, this is likely not your shoe, and for very long ultras the narrow fit could feel cramped.

Grip: AsicsGrip Outsole With Three-Pronged Lugs

Asics uses its in-house AsicsGrip rubber rather than outsourcing to Vibram or Continental, with distinctive short, slightly stepped, three-pronged lugs that resemble tiny ninja stars.

Close-up of a trail shoe outsole with short stepped lugs on dry packed dirt

In dry, firm testing, grip was very good. The lugs have a little bite on soft patches but are really designed for firmer, technical trails. On road they were not skittery at all, thanks to enough overall surface area for a smooth ride. It is a well-judged outsole for mixed, mostly dry terrain, and arguably the best non-outsourced grip I have come across. It is not, however, the shoe for long stretches of deep mud; the lugs simply are not long enough for proper cross-country mire.

Things to Consider Before Buying

Comfort is the main trade-off. Compared with more ultra-focused shoes, the Fuji Speed 2 feels firmer and more aggressive, and I would not personally line up an ultra in it. I would be happy racing up to marathon distance on well-groomed trails, but beyond that, comfort and stability matter more.

Stability is the second consideration. The narrow platform means no wide landing zone, and on downhill technical sections with rocks, roots, and broken ground, the stiff midsole moves the foot around a bit more than some rivals. It feels light and nimble enough to dance down mountain tracks, but it does not offer the planted, pounding-downhill confidence of a wider super shoe.

How It Compares

Against the ultra-focused plated trail shoes, the differences are clear. The Hoka Tectonix X2 has roughly 10mm more stack, a softer and more balanced ride, and Vibram grip that makes it the more accomplished choice for long distances and easy trail days. The Nike Ultrafly is similarly comfort-focused, much more stable with its wide forefoot, and great for holding a steady pace over long periods, but it does not feel as punchy or direct when you push the pace.

The Adidas Terrex Agravic Speed Ultra is bouncier, uses Lightstrike Pro foam, and delivers booming pace, though its very wide forefoot with a narrow heel is an unusual shape that may throw some runners. It is also only slightly heavier and only arriving next year, whereas the Asics is available now and cheaper. For a fast 5K on good trails, I still prefer the Fuji Speed 2.

The Saucony Endorphin Edge feels similar in its road-inspired character but is wider and more stable, with slightly better soft-ground grip, making it the stronger pick for longer events. Neither is a mud shoe, though.

All of these rivals cost more than the Fuji Speed 2, which makes it something of a bargain given how capable it is.

Buying Advice

If your trail running is mostly on runnable, hanging trails and your races sit between 5K and marathon distance, the Fuji Speed 2 is a genuinely strong option. It is lighter and faster-feeling than several more expensive rivals, it protects your legs on hard hour-long workouts the way good road trainers do, and it handles a mix of terrain with well-judged grip.

Trail runner stretching on a wooden bench after a hard workout on mild trails

If you want maximum comfort and stability for ultras or long, rocky descents, look instead at the wider, more forgiving plated trail shoes, and be prepared to spend more. But if you do not need an ultra shoe and would rather not spend 200 pounds on one, the Fuji Speed 2 is a very easy recommendation.

Conclusion

The Asics Fuji Speed 2 may be one of the less heralded newcomers in the trail super shoe category, but for many runners it will suit better than the big-name releases. It is fast, racy, secure, and considerably cheaper than its rivals, with only the expected trade-offs in comfort and stability for very long or very technical days. For fast training and racing on mild trails, it is a shoe worth reaching for again and again.

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