Fast on Flowing Trails, Demanding on Technical Ground
Image: official product image from adidas.com
Is the Adidas Terrex Agravic Speed Ultra 2 good for ultrarunning?
Mostly. The Adidas Terrex Agravic Speed Ultra 2 suits experienced midfoot or forefoot runners racing fast on smooth, runnable trails. Its soft, propulsive cushioning can work for shorter ultras, but the tall, narrow platform is less reassuring on technical ground, and reviewers disagree about taking it on a 100-mile race.
Key facts
| Category | Trail shoes |
|---|---|
| Release | Announced 19 November 2025; first release 2 December 2025, full range from 1 February 2026 |
| Price | £200; $225 to 230; €230 |
| Key specs |
|
| Best for | Experienced midfoot or forefoot strikers racing fast on runnable, relatively smooth trails. |
| Consensus score | 8.7 out of 10 |
What changed in the Speed Ultra 2?
The Adidas Terrex Agravic Speed Ultra 2 is a high-stack trail racing shoe designed for speed on runnable terrain. Reviewers describe its dual-layer Lightstrike Pro and Lightstrike midsole as softer and more forgiving than the original, with flexible Energy Rods supporting quick transitions. Reviewers put the men’s weight at approximately 265 to 275 g, with a 43 mm heel and 35 mm forefoot stack. The shoe has an 8 mm drop, a regular-width fit and no rock plate. Its Continental rubber outsole uses lugs of approximately 3 mm.
How does it perform on ultras?
Reviewers praise the bouncy, propulsive ride at faster paces, particularly on hardpack, gravel and other firm or mixed surfaces. The breathable upper suits warm-weather racing, while the Energy Rods help maintain efficient transitions on climbs. The approximately 3 mm lugs are less suited to deep mud. For ultrarunning, the cushioning may support longer efforts, but the tall, narrow platform can feel unstable on technical or off-camber trails, especially when fatigue sets in. Reviewers differ on its suitability for 100-mile races, and some question its weight for that distance.
Who should buy this trail racer?
This shoe is best suited to experienced midfoot or forefoot strikers who want a fast ride on relatively smooth, flowing trails, including shorter ultras. The Adidas Terrex Agravic Speed Ultra 2 is a less convincing choice for runners who prioritise stability, control at slower speeds or protection on rough terrain. Its narrow heel and midfoot may not suit wide feet, and some reviewers report pressure, hot spots or rubbing. Heel strikers and runners expecting secure footing on technical or muddy routes should consider those limitations before choosing it.
What reviewers agree on
Strengths
- Bouncy, propulsive ride that performs well at faster paces
- Softer, more forgiving cushioning than the original
- Breathable upper suited to warm-weather racing
- Continental outsole grips well on many firm and mixed surfaces
- Energy Rods and cushioning support efficient transitions
Weaknesses
- Narrow fit, with some reports of pressure, hot spots or rubbing
- Tall, narrow platform can feel unstable on technical or off-camber trails
- Less suitable for heel strikers and slower paces
- Lugs are not ideal for deep mud
- Some reviewers question its weight and suitability for 100-mile races
Frequently asked questions
How does the Agravic Speed Ultra 2 fit?
The shoe is described as regular width, but reviewers report a narrow-feeling heel and midfoot. Some also mention pressure, hot spots or rubbing. Runners with wide feet or sensitivity to a close fit should try it on if possible; the available reviews do not establish a specific sizing adjustment.
How durable is the outsole?
The shoe uses a Continental rubber outsole with approximately 3 mm lugs, and reviewers report dependable grip on hardpack, rock and gravel. The available review consensus does not establish outsole lifespan, so it cannot support a specific mileage estimate. The shallow lugs are also less suited to deep mud.
Is it better than the original Agravic Speed Ultra?
Reviewers describe the Speed Ultra 2 as having softer, more forgiving cushioning than the original, while retaining a propulsive ride with flexible Energy Rods. That may appeal to runners seeking more comfort, but the tall platform and narrow fit remain important considerations for technical trails.
Sources behind this review
How this review works: the consensus score of 8.7 out of 10 condenses the verdicts of the independent reviews and lab tests listed above, compiled by endurance coach Paul Forrest. Prices and specifications are those quoted by reviewers at the time of testing and may have changed.
Training for an ultra? See endurance coaching with Paul Forrest.
