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gbj_tester in reply to @umop3pisdn

Aluminium/lightweight 3/32 track sprockets

More trouble than they are worth, stick to steel.

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umop3pisdn in reply to @gbj_tester

But grams... Even for hillclimbs? Or especially for hillclimbs? Stripped threads under my mad power?

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gbj_tester in reply to @umop3pisdn

Stripped threads under my mad power?

Broken teeth as soon as any grit gets between chain and sprocket.

I thought you were going ISO on the hill climb bike.

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