Reddit · r/RunningShoeGeeks · Sep 26, 2026 · summarized
NegativeA joyless brick next to the Endorphin Speed 3 in back-to-back runs.
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Firm, stable and light for speed sessions; reviews are lukewarm, with several calling it flat or dull.
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 3 reviews mentioning heavy Show all
Reddit · r/RunningShoeGeeks · Sep 26, 2026 · summarized
NegativeA joyless brick next to the Endorphin Speed 3 in back-to-back runs.
Blog · WearTesters – Drew Whitcomb, Annie Keris · summarized
NegativeOne tester (6.5/10) calls it 'the worst in the line to date' for bigger runners: high price, mediocre materials and a subpar feel underfoot, so a hard pass. Another tester enjoyed some miles but the rearfoot didn't suit her stride, so try before you buy.
Blog · Doctors of Running – Matt Klein (DPT) · summarized
PositiveOverall A-: a performance fit with a wider toe box, a smooth heel transition, and a versatile ride for long runs and workouts. Not as fast and slightly heavier than v4, and wear is starting to show at 45 miles.
Runners describe the Endorphin Speed 5 as a firm, stable and light shoe that works for tempo and speed sessions, and some use it for everything. Reactions are lukewarm, with several calling it flat, dull or harsh, and firmness is the most common note. A few get heel slip or chafing.
Of the 42 reviews with a clear verdict, 55% are positive, 26% mixed and 19% negative. The praise mentioned most is durable. The most common complaint is heavy.
The complaints reviewers mention most: heavy (3 reviews), wears out fast (3 reviews) and heel slip (2 reviews). For example: A joyless brick next to the Endorphin Speed 3 in back-to-back runs.
We collected and summarized 42 experiences shared on Reddit, blogs and YouTube, 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.
Light, bouncy shoes for workouts and uptempo runs, ranked by real runners.