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My daughter has a Schwinn Sidewinder 26" mountain bike. The chain keeps jumping from the rear sprockets to a smaller sprocket under power. I have noticed that the rear sprocket set "wobbles" side to side or inside out as the wheel turns. Also the outer rim of the rear wheel also "wobbles" a little. The rear wheel at the hub (axle) seems to be true. Can I realign the sprocket set perpendicular to the axle? How do I true up the outer rim? It is only 2-3 years old. Thanks a lot! Bob

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It's loose on the hub. Special tools are required to tighten them. Bike Shops have them and will possibly perform the repair for less than the cost of the tools.

http://www.parktool.com/blog/repair-help/categories/cassette-and-freewheel-service

Then check the shifting...

http://www.parktool.com/blog/repair-help/categories/derailleur-systems

Word to the wise: don't buy bicycles from anywhere but a professional bicycle shop. Box stores don't usually have the skills for proper assembly, setup or follow-up.

Posted on May 24, 2011

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1 Answer

Chain keeps skipping while I'm peddling


This is usually the setting of the rear shift.
Check that the rear d?railleur is properly aligned when it is set to the middle sprocket in the cassette.
The chain must be fed exactly to the middle of the sprocket teeth

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How to adjust front derailleur on a shamano 050 ?


The front part is a bit tricky to change sprockets. I have a mountain bike with three sprockets, I also have difficulty with changing them. It all depends on the design of the changer. I am able to change from large sprocket all the way to the smaller but from the smaller sprocket to the second is okay but going into the third (large) sprocket is a real problem and no matter how hard an adjustment I've tried, it still doesn't want to go to the far end. Example, if it is in the smaller sprocket, it changes okay to the middle sprocket but it will not fully change in the larger sprocket because the cable doesn't fully push the changing bracket far enough to roll the chain on it. So, as with myself having same problem, I'd say, never buy a bicycle that doesn't change the front sprockets with ease. But while you have one of these three front sprocket bicycle, you have two options. Try and put the bicycle on a stand and adjust the changer's screws so that it can reach the far end where the large sprocket is, or in another case -where the smaller sprocket is, depending where your problem lies, the larger or the smaller sprocket). Remember that the air test is different to the road test. On the air test (bicycle on stand) the changer may be able to change sprockets but on the road the chain is heavily under tension and may not over-jump into the larger sprocket, but down-jumps into a mid or smaller sprocket quite easily. So, the best thing you can do is to not to apply force to the pedals to relieve the chain of any tension so that it can jump over the larger sprocket. But apply tension to the chain, such as 'accelerating', and it will not over-jump the larger sprocket with ease. However, if you change down to a smaller sprocket while 'accelerating', it usually changes without problems. The other option you can use is to sent the bicycle to a store and have it fixed there. Work is guaranteed and you can be sure your worries will be over.

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1 Answer

On my shcwinn ranger the chain clicks and skips when it encounters difficult terrain such as a hill


It's likely that you need to replace the rear sprocket cluster due to chain wear. Over time the chain stretches, and then wears out the teeth of the sprockets (usually on the rear, but it can affect the front chain ring as well). If you look at the teeth on the rear sprockets, you'll probably see that they've got concave wear on the rear edge of them - this is probably the source of the chain slippage when under load. You should take the bike into your local bike shop and get them to take a look. Hope this helps. Ryes, Scott

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1 Answer

The chain is broken off the bike We bought a new one but need a diagram of how to weave the chain through Thanks


The chain goes from the top of the front sprocket to the top of the rear sprockets, between the rear sprocket and the top derailleur wheel and then between the upper and lower derailleur wheels. It then goes forward toward the front sprocket. The text sketch below shows the rear sprocket, chain and derailleur.I hope this helps.


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1 Answer

I have this Meridian Trike (Walmart purchase). I need a FREE WHEEL 16T SPROCKET to fit the rear axle shaft. the shaft is larger than 15mm & 5/8in ?? My local Bike shop could not help me with this odd...


Why not call a Schwinn dealer and ask if they can order it for you? You do realize that you void any warranty by altering you bike, don't you? But, if you don't care, look on the www.schwinn.com website and find a Schwinn dealer near you.

Jan 12, 2011 | Schwinn Meridian Adult 26-Inch 3-Wheel...

1 Answer

I had to take off the rear weel of my falcon apache mountain bike to get it in my car o travel from my grandparens home to mine but i cant get the back weel gear arm back on. how do i do this??


By the "gear arm" I assume you mean that part of the rear derailer that the chain zig-zags through. This arm moves in two ways. It moves in and out (toward the wheel and away) as you move the shift lever - which is how it changes gears, by moving the chain onto different sprockets (gears). It also moves forward and back (toward the front and back of the bike) under spring pressure. This forward and back motion is necessary to take up the slack in the chain when you are using the smaller sprockets (the smaller the sprocket, the "higher" the gear). When the wheel has been removed, this arm moves forward (under spring pressure) as far as it can to take up all of the slack in the chain. All you have to do is grasp this lever and pull it toward the back of the bike, allowing the lever and the chain to pass behind the sprockets (gears) as you pull the wheel back into it's position. You can safely pull this arm forward and back at any time without doing any damage. One more tip-- I find it a little easier if you first put the shift lever in a "middle" gear position. Then when you pull the wheel into place, you should aim to put the chain on a middle sprocket. You don't have to hit the exact correct sprocket as you can simply lift the rear wheel and turn the pedals forward (after installing the wheel) and the chain will move to the correct sprocket corresponding to the setting on the shift lever.
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1 Answer

How to use thumb shifters on a 21 speed Schwinn Highplains bike


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1 Answer

My son just bought a 26" Huffy Jolt mountain bike. The rear sprockets spin freely when the pedals are cranked either forward or backward - - that is, there is no coupling to the rear wheel. What can I...


The plastic is to stop the chain from touching the spokes, it cannot cause this problem, either the chain is not on a sprocket correctly or the rear cluster(sprockets) is not working.
Some spray lube may help, but if it is new, take it back to the shop.

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3 Answers

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1 Answer

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