Despite strong marketing hype and high expectations, the reviewer was disappointed with the ACG Ultrafly and wishes they loved the shoe more than they do.
+2 earlier reviews from Believe in the Run
A visually stunning trail racer that excels on smooth singletrack and gravel but falls short of its all-conditions marketing due to a rigid plate that causes midfoot pressure and limits versatility on technical terrain. Both reviewers wanted to love it but found it too specialized for anything beyond light trail.
Best for: Road runners transitioning to light trail running, smooth singletrack, gravel roads, and door-to-trail scenarios. Not suited for moderate to technical terrain.
The ACG Ultrafly surprised the reviewer with its efficiency-oriented ride, delivering unexpectedly fast paces despite a firmer-than-expected ZoomX midsole. It trades the softer feel of its predecessor for a more structured, race-focused trail shoe, though the narrower toe box may not accommodate all foot shapes.
Best for: Ultra distance trail racing for runners who prioritize efficiency over soft cushioning
