As if there weren’t enough “standards” to keep track of for mountain bikes, fat bikes have made things more complicated with a number of new hub sizes of their own. Fortunately for fat bike builders, companies like Industry Nine have the situation under control. To keep the SKUs to a minimum, I9 is now shipping two different rear hubs in 170mm and 190mm and one front hub in 135mm (for now?). From there each hub uses swappable end caps to work with every symmetric fat bike standard that we know of whether it’s quick release or thru axle. Fat Torches are also available with the XD driver should you want to run X01 or XX1 on your fattie. Because I9 doesn’t yet make their own fat bike rim you miss out on their aluminum spokes but you do get to take advantage of their ridiculous freehub engagement.
Interested in a set? We have the actual weights after the break.
All lined up and ready to go, I9 has you covered with 170mm and 190mm rear hubs which use a 4 bearing design and the front 135mm two bearing hub. Both use oversized axles and external seals with hybrid ceramic bearings available as an upgrade. Hub spacings include 9×135 QR, 10×135 QR (Rear disc offset spacing), 15×135, and 15×142 axle options for the front, and 170 QR, 12×177 ta, 190mm QR and 12×197 ta. Pricing is set at $195 for the front, $395 for the rear, or $590 for the set. Sold in 32h only, hubs are available in the standard Black, Red, Silver, Blue, Gold, Orange, Pink, Purple, Green, and Turquoise color options.
Front hubs all weigh in at 190-194g, while the rear hubs clocked in at 318 for a 170mm hub with a 9/10 speed freehub, and 341 for a 190mm XD equipped hub.