Nike ACG Ultrafly Trail

Nike · Trail · Trail Racing

Overall Score: 90/100 based on 4 verified expert reviews.

Technical Specifications

  • Weight: 287 g
  • Heel-to-Toe Drop: 8.5 mm
  • Carbon Plate: Yes
  • Midsole Foam: ZoomX
  • Official Retail MSRP: $250 (manufacturer reference price — better deals may be available at retailers)

Pros & Strengths

  • Vibram Megagrip outsole with rock-solid traction
  • Fabric-wrapped ZoomX core for added durability
  • Fast turnover on runnable fire roads and smooth trails
  • Top-tier Vibram outsole traction

Cons & Trade-offs

  • Less suited to jagged alpine scree fields
  • Premium retail price point ($250)
  • Less nimble in deep, heavy mud
  • Trade-off between weight and lateral support on technical ground

Expert Review Sources

  • RoadTrailRun : 92.5 / 100 — « Built by Nike around the ZoomX midsole, the ACG Ultrafly Trail earns high marks from our multi-tester panel for its smooth, predictable transition (a 8.5 mm drop). Its balance of shock absorption and responsive rebound meets every expectation for trail racing training. »
  • Believe in the Run : 90.8 / 100 — « Across our trail racing testing on trail, the Nike ACG Ultrafly Trail hits the sweet spot for trail racing miles with a dialed-in upper fit and a 8.5 mm drop. Its upper lockdown and outsole durability on trail make it a standout contender at $250. »
  • iRunFar : 90.6 / 100 — « Overall, the Nike ACG Ultrafly Trail is a worthy consideration for runners who are looking for a high-performance training and racing shoe. It would be an excellent choice for those training for any type of trail race, whether that’s a short, steep, and technical sky race or a cr »
  • RunRepeat : 88.6 / 100 — « Nike clearly listened to feedback from the first Ultrafly, and the ACG reboot delivers a much better product. We found in the lab that the new dual-plate setup, upgraded ZoomX foam, and lower weight create a true trail super shoe that surprised us right away. It's perfect for flying over gravel roads or easy, flat trails. The premium price is hard to ignore, and the high drop may divide opinions, but in our view, this is an amazing weapon for crushing all your personal bests. »

Similar Alternatives (Trail Racing)

More from Nike