Brand Overview & History
Asheville‑built Industry Nine is famous for high‑engagement pawl hubs, vibrant anodizing, and in‑house wheels. The landmark Hydrahub (2019) delivered 690 POE / 0.52°, later superseded by Hydra2 (2025) raising engagement to 870 POE / 0.41° while addressing durability (stronger drivering, larger bearings, revised seals, thicker axle, updated preload).
Reviews frame Hydra2 as faster‑rolling than prior Hydra and engineered to reduce historical axle/bearing issues.
Rider feedbacksentimentreviews
Praises
Instant pick‑up, color choices, and easy service. Hydra2 is widely seen as a durability fix with even higher engagement; SOLiX wins points for low drag and road/gravel speed.
Concerns
Original Hydra accrued a reputation for axle and bearing wear/drag; Hydra2 aims to solve it, but reviewers note time will tell. Some riders prefer quieter freehubs; i9’s sound can be tamed with heavier grease.
Overall
i9 still offers the value‑oriented 1/1 hub (90 POE / ~4°) for riders who don’t need extreme pick‑up. Community commentary frequently compares Hydra vs 1/1 on sound, service, and durability, with many praising i9’s warranty support and easy servicing.
Feature Product Showcase
Source: Company/brand website. Image source: company product website.
Hydra2 (2025)
- What: 870 POE (0.41°), stronger drive ring (145T), larger bearings, new seals, thicker axle, revised pawls/pockets; available hubsets and wheel builds; 12 colors.
- Why: fixes known Hydra pain points while upping engagement
Professional Industry Reviews
Pinkbike, Vital MTB, and Escape Collective independently reviewed Hydra2, citing higher POE, reliability‑oriented internals, and lower drag vs. Hydra (with early durability signs positive).
Where i9 wins?
i9 stands out with ultra‑high engagement and US‑built customization.
Brisbane Cyclist Perspective
Hydra2 if you crave instant pedal response on punchy trails. If you’re noise‑sensitive, we can spec grease to quiet the freehub without sacrificing pick‑up.
