Rear wheel recommendations

General cycling advice ( NOT technical ! )
Fraz101
Posts: 146
Joined: 15 Feb 2018, 12:47pm

Rear wheel recommendations

Postby Fraz101 » 21 Jul 2018, 3:02pm

So the inner hub race has broken off my rear wheel of my commuter mtb

It’s 26” with QR with a 7 speed screw on freewheel.

Can anyone advise where best to get one.

Not looking for anything fancy,just a replacement QR wheel.

Any links are most appreciated!

random37
Posts: 1952
Joined: 19 Sep 2008, 4:41pm

Re: Rear wheel recommendations

Postby random37 » 21 Jul 2018, 3:44pm

How long did it last? Do you want a replacement, or something stronger?

reohn2
Posts: 40711
Joined: 26 Jun 2009, 8:21pm

Re: Rear wheel recommendations

Postby reohn2 » 21 Jul 2018, 4:30pm

Have you tried ebay?
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Fraz101
Posts: 146
Joined: 15 Feb 2018, 12:47pm

Re: Rear wheel recommendations

Postby Fraz101 » 21 Jul 2018, 4:54pm

It’s the original wheel.

Bike is about 12years old.

Just a replacement really.

Brucey
Posts: 42890
Joined: 4 Jan 2012, 6:25pm

Re: Rear wheel recommendations

Postby Brucey » 21 Jul 2018, 5:19pm

worth noting that the rear hub will also have a particular width; IIRC yours being an MTB the rear hub will probably be 135mm wide.

The common pattern of events with wheels like the original one is that the axle breaks, a new axle is fitted and then the hub breaks. The last of these usually occurs because the cones that came with the new axle were used; the chances of these being the right shape are pretty small, and if they are wrong this does some very evil things to the bearings.

Because this kind of failure is so likely, I would recommend that (if you intend to ride the bike much) you buy a wheel with a cassette hub instead of one that accepts a screw-on freewheel. The rear hub will be far stronger.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

Fraz101
Posts: 146
Joined: 15 Feb 2018, 12:47pm

Re: Rear wheel recommendations

Postby Fraz101 » 21 Jul 2018, 5:30pm

Here’s what’s happened Image

As you can see the inner race has broken off the hub.

I replaced the bearings a few months ago but tbh they haven’t felt “smooth” when turned by hand for a while.

Brucey
Posts: 42890
Joined: 4 Jan 2012, 6:25pm

Re: Rear wheel recommendations

Postby Brucey » 21 Jul 2018, 6:20pm

that is exactly the kind of damage that is often caused by using the wrong cones in the hub. It might have happened anyway, but 'wrong comes' will definitely cause it, IME.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

Fraz101
Posts: 146
Joined: 15 Feb 2018, 12:47pm

Re: Rear wheel recommendations

Postby Fraz101 » 21 Jul 2018, 6:42pm

It is the original cones and axle

I only replaced the ball bearings.

I managed to pick up a used wheel from my local recyc a bike this avo for £5.

So I’ll run that til it breaks!

Only difference is it’s not got QR on it but not the end of the world (I don’t want to strip the bearing and fit my qr skew

Brucey
Posts: 42890
Joined: 4 Jan 2012, 6:25pm

Re: Rear wheel recommendations

Postby Brucey » 21 Jul 2018, 7:08pm

note that QR axles and solid axles frequently have different threading on anyway, so you may have spared yourself a bit of aggro there.

cheers
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~~~~~~~~~~~~~~~~~~~~~~Brucey~~~~~~~~~~~~~~~~~~~~~~~~

Fraz101
Posts: 146
Joined: 15 Feb 2018, 12:47pm

Re: Rear wheel recommendations

Postby Fraz101 » 21 Jul 2018, 7:16pm

I figured it wouldn’t be straight forward,a couple nuts either side isn’t difficult!

The wheel even had a decent 7speed shimano free wheel attached. Not bad for a fiver!

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531colin
Posts: 13411
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Location: North Yorkshire

Re: Rear wheel recommendations

Postby 531colin » 22 Jul 2018, 8:18am

Brucey wrote:that is exactly the kind of damage that is often caused by using the wrong cones in the hub. It might have happened anyway, but 'wrong comes' will definitely cause it, IME.

cheers


Driveside bearing cup broken out of pressed steel hubs? …..I have seen that most often when the driveside cone hasn't been properly locked off, and you find the cone some way down the axle.

Brucey
Posts: 42890
Joined: 4 Jan 2012, 6:25pm

Re: Rear wheel recommendations

Postby Brucey » 22 Jul 2018, 10:51am

yup, that'll do it for sure.

IIRC there have been previous threads about this including

- a mysteriously destroyed 105 freehub and
- an aluminium hubshell that had been crushed lengthwise by the effects of precession.

not that I can find it now but IIRC I posted a photo of a blue hubshell that had suffered the latter fate.

However if the cones are the wrong shape (and it doesn't have to be much) this also causes the bearings to disintegrate.

A while ago I was speaking to an LBS owner and he mentioned that 'front hubs didn't seem to be very well made these days'. I asked him what he meant and he reported that he'd seen a lot of front hubs with bearings that were destroyed. Putting two and two together, I asked if he'd fitted different axles to many of the hubs that had then failed; turned out he had; every other bike he sold had a basket fitted and this was usually made possible via a new solid axle in place of the QR one originally specced. He had a small bucket full of unused front QR axles and the ones he'd been fitting instead (which had differen threading, so you couldn't swap the cones over) were different to that.

cheers
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