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Old 04-21-2009, 07:47 AM
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Sydneysider Sydneysider is offline
Motorized Bicycle Elite Member
Join Date: Mar 2009
Location: Sydney
Posts: 189
Default Re: Sprocket Installation Problem

I did this before, I accurately measured from the sprocket teeth towards the centre and marked out as many dots as I can with a permanent marker, then joined to them up to make the circle. Then I filed (with half round file) accurately from the original hole evenly towards the circle. Was a bit hard, but I got the size fairly accurately and some more muscles in the upper arms too! Good Luck..
"....dunno what I did to my engine the other day but now my rear tyre wears out real quickly..."

Last edited by Sydneysider; 04-21-2009 at 07:50 AM.
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