Industry Nine Hydra 2 DH System Wheelset
The Industry Nine Hydra 2 DH System is a masterpiece of vertical integration. By machining the hubs, spokes, and rims in-house, I9 has eliminated the traditional nipple/rim interface. The 7075-T6 aluminium spokes are significantly thicker than steel, providing a level of lateral stiffness that allows for "telepathic" line choice through rock gardens. For 2026, the move to the Hydra 2 platform ensures these wheels can handle the brutal torque of modern 120Nm e-bike motors.
The DH System wheels utilize the Grade 300 v2 rim. This rim features a Hollow Bead Wall, which effectively widens the "landing zone" of the rim edge. By nearly doubling the surface area of the bead, the rim is much less likely to cut through a tyre casing during a "bottom-out" hit, significantly reducing pinch flats without requiring heavy inserts.
The Industry Nine Hydra 2 DH System wheelset is the flagship alloy gravity wheel in the I9 range. Unlike the "S-Series" (which uses J-bend steel spokes), the System wheelset uses Industry Nine’s signature direct-thread aluminium spokes. These oversized, one-piece spokes thread directly into the hub shell, creating an incredibly stiff, responsive, and lightweight chassis that is specifically tuned for the high-impact world of World Cup Downhill and full-power E-MTB racing
Customsiation through Industry Nine's Anolab:
Black hub and spokes is the base price default, adding colours incurs upgrade costs.Simply go to the Anolab here and build your preferred wheelset. Add it to theIndustry Nine cart and it will tell you what Level of customisation it is (level1,2 or 3 - see below).
Get thei i9 custom code from the basket as in the picture below. Pop this code into the comments box when ordering from us and we can make sure you get what you are after. Any problems get in touch and we can do it for you.
System Wheels have 3 levels of customisation:
Level 1 - Up to 8 spokes of a different colour
Level 2 - Any colour hub (instead of standard black) and as many matching spokes as you like (i.e any mix of black and the colour that matches the hubshell
Level 3 - Any mix of colour hub and spokes you like all the way up to rainbow pattern!
System Chassis: Direct-thread aluminium spokes eliminate the "bend" found in J-bend spokes, creating a more durable and efficient energy transfer.
Hydra 2 Drive System: An industry-leading 870 P.O.E. (0.41-degree) for instant power out of corners and technical gates.
Grade 300 Alloy Rims: Impact-resistant alloy with a $30 ext{mm}$ internal width, optimized for 2.4"-2.6" gravity tyres.
Reduced Coasting Drag: New labyrinth seals and refined pawl geometry offer a 60% reduction in drag compared to the original Hydra.
Full-Power E-Bike Rated: The reinforced Hydra 2 hub shell and oversized 6903 bearings are designed for the stresses of Class 1 and Class 3 E-MTBs
| Specification | Detail | Notes |
| Rim Material | Grade 300 V2 Aluminum | Triple-cavity Hollow Bead Wall design. |
| Internal Width | 30.0mm | Outer width is a robust 38mm. |
| Hub Engagement | 0.41? (870 P.O.E.) | 6-pawl, 6-phase system with 145t ring. |
| Spoke Type | One-piece 7075 Aluminum | Proprietary direct-thread "System" spokes. |
| Spoke Count | 32 Hole (Front & Rear) | Maximum stiffness for DH applications. |
| Axle Spacing | Boost / SB / 150-157 DH | Options for 15mm,20mm, and SuperBoost. |
| Brake Mount | 6-Bolt Only | Standard for all I9 System-spoke hubs. |
| Set Weight (29") | 2045g | (950g Front / 1095g Rear). |
| Set Weight (27.5") | 1935g | (900g Front / 1035g Rear). |
| Max Rider Weight | 150kg (330lbs) | Certified for heavy riders and E-bikes. |
| Specification | Detail |
| Rim Material | Grade 300 V2 Aluminum |
| Internal Width | 30.0mm |
| Hub Engagement | 0.41? (870 P.O.E.) |
| Spoke Type | One-piece 7075 Aluminum |
| Spoke Count | 32 Hole (Front & Rear) |
| Axle Spacing | Boost / SB / 150-157 DH |
| Brake Mount | 6-Bolt Only |
| Set Weight (29") | 2045g |
| Set Weight (27.5") | 1935g |
| Max Rider Weight | 150kg (330lbs) |
| Specification | Notes |
| Rim Material | Triple-cavity Hollow Bead Wall design. |
| Internal Width | Outer width is a robust 38mm. |
| Hub Engagement | 6-pawl, 6-phase system with 145t ring. |
| Spoke Type | Proprietary direct-thread "System" spokes. |
| Spoke Count | Maximum stiffness for DH applications. |
| Axle Spacing | Options for 15mm,20mm, and SuperBoost. |
| Brake Mount | Standard for all I9 System-spoke hubs. |
| Set Weight (29") | (950g Front / 1095g Rear). |
| Set Weight (27.5") | (900g Front / 1035g Rear). |
| Max Rider Weight | Certified for heavy riders and E-bikes. |