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3

joelmdev's answer is correct. Just to add some very minor additional information: some high- and mid-quality wheels have cup and cone bearings. To my knowledge, this applies to all of Shimano's factory wheelsets and higher-end wheels made by Campagnolo/Fulcrum (NB: Campagnolo is Fulcrum's corporate parent). Most wheels have cartridge bearings. If your wheels ...


1

You don't. That's a hub for a freewheel, which threads on and the thread is part of the hub. All the pawls are inside the freewheel which is not supposed to be serviceable, and is replaced when you buy new cogs. The modern wheel has a hub, a separate freehub, and a cassette which simply slides onto the freehub. To change the hub, you'll have to undo all ...


1

I am presuming its very slight rubbing that is not noticeably affecting the wheels free rotation. What type of bike? FS MTB, super light roadie? Worn bushes or light flexible frame may cause a small amount of auditable rubbing under load. The loss of energy form this is tiny, and as long as its only happening under cornering (when energy loss is occurring ...


1

The rotor should be flat and co-planar with the hub mounting face, which should be at a right angle to the axle's center line. Replacing the rotor won't fix issues with the axle or play in the bearings, so check those out before buying parts. I've used a dial travel indicator to get a rotor completely orthogonal to the axle, and still had rub because the ...


3

Bent axles on Shimano cassette hubs always strongly imply dropout alignment problems. Maybe it's possible for it to happen from being overloaded, but the designs (which are different generation to generation, i.e. the standard versus non-standard axles) simply don't put a lot of leverage on the axle. Problems with bent axles on Shimano hubs are rare and I ...


3

If the bearing hasn't been contaminated, there's a good chance that this is a manufacturing defect or a cheap part that wasn't intended to survive in continuous use. Both would be good for warranty replacement if you notice them early enough.


4

That is NOT normal wear and proper cleaning, lubrication, and adjustment would have prevented that damage. Riding in the rain, through puddles, washing the bike with water, or just dirt getting carried in by the air. From your description of your riding, there is plenty of dirt and grit to get in there. It just happens. Any LBS with a service department ...


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