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Racing
A score out of 100 for how well reviewed a product is next to others of its kind. It rises with positive reviews and with how many there are; negative and mixed reviews take points off. The best in each category scores in the 90s.
So a handful of glowing reviews can’t beat a product lots of people like. No sponsored placements.
Showing 4 reviews mentioning unstable Show all
Reddit · r/RunningShoeGeeks · Sep 4, 2026 · summarized
MixedThey ran their fastest half and 10k in the Sky as a heel striker, but beyond about 15k it felt unstable, their ankle collapsed in race photos and was sore for weeks. They now keep it to 10K at most.
Reddit · r/RunningShoeGeeks · May 2, 2026 · summarized
MixedThey switched to the Metaspeed Sky Tokyo for a half marathon and like it so far, but find it feels far less stable than the Alphafly 3.
Reddit · r/RunningShoeGeeks · Nov 6, 2025 · summarized
NegativeCompared with the Adios Pro 4 it feels firmer under the arch, less comfortable and less stable, narrower underfoot on corners.
Blog · Fordy Runs · summarized
PositiveOutstanding, possibly PB-worthy, for stride-style mid/forefoot strikers who want something fast and fun. The rearfoot is still too soft and unstable for heel strikers or heavy pronators over longer distances. Best for 5K to half marathon.
Of the 19 reviews with a clear verdict, 79% are positive, 11% mixed and 11% negative. The praise mentioned most is fast. The most common complaint is unstable.
The complaints reviewers mention most: unstable (4 reviews), narrow fit (1 review) and wears out fast (1 review). For example: Compared with the Adios Pro 4 it feels firmer under the arch, less comfortable and less stable, narrower underfoot on corners.
We collected and summarized 19 experiences shared on Reddit and blogs, with links to the original sources. Reviews submitted here are checked for spam before they appear. Every review, submitted here or collected, is read as positive, mixed or negative.
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