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Got a brand new rear wheel off of amazon and it wobbles...

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Got a brand new rear wheel off of amazon and it wobbles...

Old 09-14-15, 03:15 AM
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Got a brand new rear wheel off of amazon and it wobbles...

Hello,

I've a crappy old bike from Halfords that I use to leave at a remote station overnight, so it won't be stolen... However, the back wheel finally gave in a few years ago, and I've been using my folding bike instead.

I bought a new wheel off amazon Rear wheel, fixed it with a new cassette, and attached to bike and seems fine...

Except I notice it wobbles. The axel is fine, but it shifts sideways up to 10mm each way. I don't trust it to ride. I've had a look online and there's mention of adjusting the cones with thin spanners....

However, the question is, should I expect a brand new wheel bought off amazon to have this problem? Or do I send it back. I'll try and fix it if I have to, but have I been sent a bum wheel?

Thanks
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Old 09-14-15, 03:43 AM
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If it was like that from the start, you have been sent a bad wheel and it should be returned.

But wheel wobble can come from different places. Wheel can be out of true. Rim damage/uneven spoke tensions shifts the rim sideways.

Bearing adjustment can be (way) off, allowing the hub to tilt on the axle.

If you decide to DIY, you need to figure out which it is.

Bearing adjustment USUALLY requires special tools - cone wrenches. Look up "cup & cone bearing adjustment". If you don't have, don't feel inclined to get any - DON'T attempt to adjust bearings. You are almost guaranteed to do further damage.

Wheel trueing isn't that hard if you're patient and willing to settle for "better" or "rideable" rather than "perfect". But here too it's possible to mess things up.
36H wheels are usually quite tolerant, but even they do need the spoke tension to fall in a certain range.
If you don't think you'll be able to hit that range, by feel and experience, or by measuring, don't attempt trueing. Again, more damage is likely.
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Old 09-14-15, 03:48 AM
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10mm is a LOT of wobble.

1) How does it wobble? Is it loose, so you can wiggle it back and forth? - CONES LOOSE
2) Does it not spin in a circle (wobbles back and forth as you spin the wheel)? - Wheel out of true.

I have heard that store bought wheels will often be out of true (2) by a couple of mm, and it is not uncommon to true them before using.

10mm IS A LOT, whether it is out of true, or loose cones.

So, if the cones are loose, I'd just adjust them, although you may wish to disassemble, verify all the bearings are ok, grease, and reassemble.

If the wheel is out of true, verify that you have all the spokes, and haven't broken any.

Before you do too much, contact the seller, whether it is Amazon, or a private party.
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Old 09-14-15, 07:45 AM
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Originally Posted by smidscot
Hello,

I've a crappy old bike from Halfords that I use to leave at a remote station overnight, so it won't be stolen... However, the back wheel finally gave in a few years ago, and I've been using my folding bike instead.

I bought a new wheel off amazon Rear wheel, fixed it with a new cassette, and attached to bike and seems fine...

Except I notice it wobbles. The axel is fine, but it shifts sideways up to 10mm each way. I don't trust it to ride. I've had a look online and there's mention of adjusting the cones with thin spanners....

However, the question is, should I expect a brand new wheel bought off amazon to have this problem? Or do I send it back. I'll try and fix it if I have to, but have I been sent a bum wheel?

Thanks
What everyone else has said is correct but I will add that it is not strange at all for cheap wheels to come needing to be trued. 10mm is a lot for industry standards but it isn't uncommon.
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Old 09-14-15, 07:57 AM
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When you spend 15 quid on a wheel, it's likely not a very good one. Take it to your bike shop and get it trued.
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Old 09-14-15, 08:15 AM
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It spins straight, I'm unsure of the terminology of being "true", too much of a newbie for that, but it isn't buckled in any way, spins correctly.

So it sounds as if the cones are seriously loose. Yeah, its a 15 quid wheel, but none of the other reviews seemed to infer that the cones are busted.

Can't help feeling that the 15 quid was spent on the massive box and packing which it was sent in....

Thanks everyone, just wanted to make sure this wasn't a great wheel... I got a new one for my folding bike the other month, and it was fine...
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Old 09-14-15, 09:45 AM
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Following your link above.

There do seem to be more positive reviews than negative reviews.

However, of negative reviews, they idicate a need for more grease, and some truing.

Anyway, yours being so loose, I'd pull it apart, count check/count the bearings on each side, add grease, and put it all back together. You'll probably need a 14mm or 15 mm cone wrench (plus an ordinary wrench (17mm?) to do the cone adjustment. It isn't too hard to do. Just set the axle so that it isn't loose, and gives the least amount of spinning resistance (which can be tricky with a bit gritty feeling of cones).
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Old 09-14-15, 10:10 AM
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Originally Posted by smidscot
It spins straight, I'm unsure of the terminology of being "true", too much of a newbie for that, but it isn't buckled in any way, spins correctly.
Wheel wobble can be introduced by poorly adjusted spokes, fixing it is called "truing the wheel". It's pretty common for cheap wheels to come out of the box untrue.
So it sounds as if the cones are seriously loose. Yeah, its a 15 quid wheel, but none of the other reviews seemed to infer that the cones are busted.
So when it's installed in the bike, it's loose on the axle? I.e. you can move it from side to side? Not sure how the hub works, but can you tighten up the cones?
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Old 09-14-15, 10:32 AM
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This:

When you spend 15 quid on a wheel, it's likely not a very good one. Take it to your bike shop and get it trued.
If you went to a Bike Shop, in the 1st place, It would be checked before they sold it to you .

( if like the LBS here, they would do touch up truing after a bit of riding on it.) it may cost a bit more.
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Old 09-21-15, 02:05 AM
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In the end I bought the tool, took off the wheel, tightened a nut and it was fine then. I didn't realise it would be that simple... I always assume when it comes to wheels and gears, it gets complicated. Then again half the main problems I now recall in recent years was getting a replacement when a pedal has fallen off (and the screw to attach it was near impossible to find).
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Old 09-21-15, 11:53 PM
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If you ever saw how wheels were stocked/stored inside an Amazon fulfillment center you probably wouldn't want them.
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