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Spec
Tech |
Description
The Chub Fixed is made up of two oversized aluminum flanges bonded to a massive carbon shell. It rolls on sealed cartridge bearings and employs an alloy 15mm thru axle, bolted to the frame by custom Titanium M10 bolts.
As compared to a typical high flange fixed gear hub using the same spoke count, rim, and build method, the Chub Fixed decreases peak spoke stress under pedaling loads by a staggering 70%! Reducing peak spoke stress means your wheels wind up less, accelerate faster, and won’t blow up.
FAQ
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How tight should I tighten the M10 titanium bolts to keep my wheel in the dropouts?
You need to follow our torque specification of 40Nm or 30ft/lbs. If you still have trouble keeping your wheel in the frame, do not overtighten the bolts. Take your bike into your local shop so they can help diagnose your problem. You should use a torque wrench to ensure your bolts are tightened to spec.
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Do I need to use anti-seize compound on the M10 titanium bolt threads?
Yes. If you fail to use anti-seize, commonly called Ti-Prep™, you risk the bolts seizing in the axle. Repair will be a time consuming and expensive endeavor.
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Why is this hub so big?
In short, bigger flanges build better wheels. The large flanges provide more leverage on the spokes, which means up to 70% less spoke stress.
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I need replacement bearings for my Chub Fixed Rear. What bearings do I need to buy?
You'll need 6902 deep radial groove bearings. These can be purchased from The Hive or online from sites like McMaster-Carr. Please refer to the Chub Installation and Service Manual (link) for the proper bearing replacement procedure.
