Bigger front sprocket

[agricola]

[quote author=agricola link=topic=23930.msg277601#msg277601 date=1522523967]
[quote author=Disorderlypunk link=topic=23930.msg277423#msg277423 date=1522275556]
funny you should mention that after i have spent an hour killing myself over that today
with the wheel in the air it was shaking around like mad but when under pressure no problem at all
without a laser alignment tool its hard to be sure but them lines are the best we have - they are made in a pretty accurate JIG but as time passes we lose alignment through bearing wear etc

I dont have the confidence in the marks on the swingarm. Last two times ive had to do it, ive set up two strings down the sides of the bike and measured from the wheels. The chain seems to sit better in the sprocket teeth this way.
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I think I know the way you are talking but - more detail please.


Two string lines, one down each side of the bike, tied around the rear wheel so that the strings just kiss the front and rear edges of the tyre, with bike on centre stand. Strings taut and fastened to something to hold them taut beyond the front wheel. Use eyesight to align front and rear tyers as near central as you can. Use the rear wheel adjusters to align rear with front, might sound complicated but its a doddle, there is only one point at which the measurement from the strings to the tyre edge of each tyre is equal. Note front and rear measurements will not be the same due to tyre size difference. Take note of chain tension while adjusting. Hope that helps. Im sure others swear by other methods, but this is the method ill use and will continue to use until I come across a more accurate way of doing it, so there :moon
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