Quote:
Originally Posted by mgentz
where did you get the 428 conversion package?
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Sprocket Specialists. Info and part# here:
http://www.rcramer.com/bikes/ex250/428.shtml
I run 18/59t sprockets to reduce chain-wrap angle as much as possible.
So far, I've gotten past 2-seasons from chain, about 70 track days total.
Changed it and flipped sprocket for this season.