How do you adjust gears on a bike?
it is a 21 speed shimano gears
Answers:
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First - make sure the chain is clean and lubed - this can have a dramatic effect on shifting quality.There are two things you need to adjust on a dérailleur (drlr) - the high / low limits, and the cable tension. The little screws that folks are talking about are the high / low limit adjustment screws. They control (regardless of cable tension) how far in / out the drlr will go. If your chain is slipping off the outside or inside of your gear cluster, these need adjustment. They're also the first things you should adjust, and they are most easily adjusted without the chain on the bike.
Once the limit screws are set, you need to adjust cable tension. You can start just by pulling it tight with your hand or a wrench before tightening the bolt on the drlr, but a cable tension tool is cheap and makes it much easier. Now, shift into your smallest gear, and then try shifting up one gear. If it doesn't go up, you need more cable tension. Unscrew the barrel adjuster (it's inline with the cable - a little "nut" you can turn) in half-turn (or one-click if the adjuster has indents for this) increments, until it goes up smoothly. If it shifts up onto the gear and tries to go one more gear - tighten the barrel adjuster.
The links below go into a lot more (and probably better) explanation, with pictures that make it easier to understand.
Adjust? You mean like change gears? Well it should be obvious, is there not a little nob to turn or little triggers to pull, you should be able to work it out.
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undo the little nut and tug at the wire with some pliers..There should be one attached to the cogs with the peddles on and one on the back cog attached to the derailer...Don't forget to tighten the nuts up again though
Both the rear draylear and the large pedal cog both adjust in the same way.
If your chain is slipping on your rear wheel,then obviously you need to adjust the rear draylear.
You will find one or two tiny screws situated on the rear draylear these need to be turned until the chain sits on the cogs without slipping.
Unfortunately this is trial and era but normally is'nt that difficult,once done just leave the screws at the new setting.
Hope this helps and good luck.
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Both the front and rear derailuirs on your bike will have 2 tiny screws - adjust the gears via these screws to stop your chain slipping off. Its a bit fiddly, but worth the effort.Do u know a website that I can find 10 speed bicycles?
This is how I do it.First thing, make sure your rear gear lever is set to the highest gear (smallest sprocket).
Loosen the screw holding the gear cable on the rear gear mechanism and adjust the cable tensioner a few turns so that you can adjust it either way (this is the bit where the outer gear cable enters the rear mechanism).
There are two small adjustment screws that stop the chain coming off the sprockets. Adjust the one that is hitting its stop so that the chain rides up to the second smallest sprocket.
Select the second highest gear on your gear selector.
Pull the cable tight with a pair of pliers and retighten the cable screw.
Select the highest gear again and re adjust the adjustment screw so that the chain drops down onto the smallest cog (be sure not to let the chain come off the sprocket.)
Run up through the gears and adjust the cable tensioner as required for a problem free gear change.
The reason i adjust on the second highest gear is so that i eliminate any loose cable.
Another little trick, when you finish riding, put you gears into the highest gear on your smallest chainring. This eliminates alot of of cable stretching which means less adjustments.
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Front and rear is the same procedure. Start with the chain on the smallest sprocket, disconnect the cable at the derailleur, and check that the chain is centered on the sprocket, if not , adjust the appropriate limit screw on the derailleur, they should be marked with an "H" and an "L". You want to adjust the high one. When the chain is right on the sprocket, reconnect the cable pulling all the slack out of it. Now shift the gears one at a time, and tighten the cable with the barrel adjuster on the derailleur until the shift is quick. Now carefully shift into low and check that the limit screw is set properly so that your derailleur does not end up in your rear wheel, the limit screw should stop the derailleur from going past the last sprocket and into the spokes. Same for the front, only the adjuster is on the shifter not the derailleur.More Questions & Answers...