Wolf Tooth Components Single Chainring Bolt/Nut Set 4pc Ultraviolet Purple CheckoutSpec= 30.9 Fabric Content: 84% Polyamide -

Fabric Content: 84% Polyamide - 16% Elastane

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Wolf Tooth Components Single Chainring Bolt/Nut Set 4pc Ultraviolet Purple CheckoutSpec= 30.9 Fabric Content: 84% Polyamide -Aluminum bolts for single ring chainring setup on common 4 arm cranks 6mm long, the bolt length is laser engraved on the head 4mm hex on the bolt and 6mm on the nut, torque to 6 7 Nm maximum, use light grease Made in the USA from 7075 T6 aluminum alloy TECH SPECS Model Single Chainring Bolt Set Kit Single, 4pc Size 6mm Material Aluminum Color Purple