What Our Gearhead® Experts Are Saying:"The 0.41-degree engagement on these hubs ensures there's no dead spot between where I start pedaling and where the wheel responds. The alloy rims and steel spokes are reasonable for a wheelset that can take a real beating."Why We Like ItThe Grade-S uses Industry Nine's hollow bead wall rim construction, which adds pinch flat resistance and impact strength without a significant weight penalty. J-bend steel spokes in a 32-hole pattern keep the build stiff and field-serviceable. The wheelset carries a Full Power Class 1 E-bike approval, so it handles the added load of our motor-assist drivetrains without compromise.
Rim Material: aluminum;
Wheel Size: 29in;
Rim Type: tubeless-ready;
Rim Depth: 20mm;
Rim Width: [internal] 31mm, [external] 40mm;
Brake Compatibility: 6-bolt;
Hubs: i9 Hydra2;
Front Axle: 15x110mm Boost;
Rear Axle: 12x148mm Boost;
Spokes: steel J-bend;
Spoke Count: 32H;
Claimed Weight: [set] 4lb 12oz (2165g);
Manufacturer Part Number: W4GC9BBBAEE1, W4GC9BBBAEE7, W4GC9BBBAEE2;
Manufacturer Warranty: 2 years;
Activity: enduro, downhill;
storecredits: 0.0;
Style Variants
Available Colors: Black
Size Reference for Industry Nine Grade-S 29in Wheelset
Available Sizes:
