The Avian alloy chainring bolts come as a set of five bolts and nuts, light and strong, with laser etched logos.
Short bolts measure 6.4mm/6.4mm and long bolts 8.9mm/6.4mm, so you can match the stack on your sprocket. Fitting takes a 5mm Allen key and a chainring nut wrench such as the Park CNW-2.
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