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The MCS Chromoly Chainring Bolt Kit gives you all the bolts you need to run most chainring and crank configurations. MCS provides both 8.5mm and 6mm front bolts that should get most setups up and running. The Kit includes (5) 8.5mm front bolts, (5) 6mm front bolts and (5) 5mm rear bolts. Made from chromoly ED black with laser etched MCS logos Weight: 16.6 grams / 0.59 ounces for a Short front set of four with backs 18.2 grams / 0.64 ounces for a Long front set of four with backs 20.8 grams / 0.73 ounces for a Short front set of five with backs 22.8 grams / 0.80 ounces for a Long front set of five with backs
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🇺🇸 Ship from USA · On Agora since 2026
$17.95