The Hierro v9 builds its 42/38mm dual-density Fresh Foam X into the plush-court throne of the trail lineup, with ~6mm Vibram Megagrip lugs below for top-of-table traction. The 310g knit-mesh chassis trades pace for an unmatched plush-cruiser character.
Skip it — or buy it
Verdict: buySkip it if
You want nimble pace-mule agility for race days. 310g and the soft 42mm deck are a cruiser build, not a race weapon.
You run hot summer missions and prize breathability. The knit-mesh upper and gusset run the fleet's warmest trail airflow.
You want race-level energy return at tempo paces. Fresh Foam X is plush-court comfort, not a bouncy compound.
Buy it if
You want maximum trail plushness for long grinding days. 42/38mm dual-density Fresh Foam X lands the catalog's deepest trail sink.
You want best-in-class rock and mud traction. 6mm Vibram Megagrip lugs mark the table's top traction bite.
You want a protective workhorse for technical descents. Toe Protect + a shielded chassis + Megagrip build a bruiser daily.
What the community says
Synthesized from 17 wear-test videos and 184+ Reddit runner logs.
- n=61
Trail-pace weight bulkModerate
310g grows a heavy read across fast ridgeline tempo work.
- n=40
Soft foam longevity curveModerate
Fresh Foam X compresses quickly and reads drained before the lugs are.


























