Re: Tomos arrow r chain adjustment

Don Ohio /
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Most bikes with the swingarm arc movement require you to adjust the chain a little loose when no weight is on the bike. When you hit a bump, the swingarm will tighten the chain and stress it and the sprockets and bearing of the front sprocket IF it's too tight. Leave at least 1/2" up and 1/2" down free movement while sitting on it.

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