basics chain adjustment - VIDEO

[Riko_imp]

Hi all,

can somebody explain WHY both of the adjusters had to be turned in this tutorial video?

the link jumps right to the important bit
[url=http://www.youtube.com/watch?v=zcLLgs42IuI&t=7m35s]http://www.youtube.com/watch?v=zcLLgs42IuI&t=7m35s

basically the guy turns upwards in one direction and he turns the adjusters on the other side downwards, but why is that?

If he wanted to tight his chain, he just has to adjust one adjuster, but is the reason he did both adjuster just for alignment purposes?


thx

[redbirds_imp]

Hi Riko, he is turning both adjusters in the same direction. When doing the adjustment, it is important that the adjusters on both sides are turned the same amount in order to maintain rear wheel alignment. Rear wheel alignment is critical for proper handling and even wear on the chain and sprockets.

[Lord Popgun]

You do realize that you have to adjust both adjusters the same or you will pull the axle, and thus the wheel, out of alignment. If you only adjust one side, the wheel will point sideways one way or the other. That causes bad things to happen. Like brake binding, excessive tire and chain wear, wheel bearing problems. And handling problems.

I'm sure that more comments will follow.

[kmoney_imp]

Hi all,

can somebody explain WHY both of the adjusters had to be turned in this tutorial video?

the link jumps right to the important bit
[url=http://www.youtube.com/watch?v=zcLLgs42IuI&t=7m35s]http://www.youtube.com/watch?v=zcLLgs42IuI&t=7m35s

basically the guy turns upwards in one direction and he turns the adjusters on the other side downwards, but why is that?

If he wanted to tight his chain, he just has to adjust one adjuster, but is the reason he did both adjuster just for alignment purposes?


thx

The above two are right. Re: the wrench direction, mentally rotate the bolts in your head as if you were standing behind the bike. He is turning both to the right, therefore loosening both (they're reverse threaded in this case) and pushing both sides of the axle carrier equally away from the swing arm and making the chain tighter.

Using the guide sticker or counting turns isn't really best practice. Use those methods to get it close, but use dial calipers measure the space between the carrier and swing arm at both sides to make sure they're equal.

[Riko_imp]

thx all!

I did not realise that turning up on one side and turning down in the other side (or visa versa) is actually turning the same way, I didnt think it trough when I asked the question LOL

just one question about making sure the distance is the same on both sides, what do you mean with "carrier" to be exact if you cant really trust on the guide stickers provided by the manufacturer?

[Lord Popgun]

Look at this : http://www.partsfish.com/oemparts/a/hon/...f/swingarm

Item 4 is what he is referring to as the carrier. Measure from the rear of it to the end of the swingarm and they should be the same on both sides.

[the Ferret]

A lot of " techy types" measure from the middle of the swingarm pivot to the middle of the rear axle on both sides

[Lord Popgun]

That would be a pain every time. Couldn't you just measure from the middle of the pivot to the end of the swingarm, verify it is the same on both sides and then use the micrometer like some of us do now? One time a pain then easy from then on.

[Django]

I think, this is very smart:



You can eyeball, if the pin is in line with the chain.

[Riko_imp]

thx all!

Django, whats that last tool? Looks promising

That would be a pain every time. Couldn't you just measure from the middle of the pivot to the end of the swingarm, verify it is the same on both sides and then use the micrometer like some of us do now? One time a pain then easy from then on.

by "end of the swingwarm" you mean that adjuster (item 4 image in link above) right?