Wolf Tooth 1x Chainring Bolt Set 6mm Dual Hex Fittings Set of 5 for 1X Chainrings group-dura-ace7700 5mm 53/39T Ultra Torque

5mm 53/39T Ultra Torque

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American Classic 420 PowerTap 2

Wolf Tooth 1x Chainring Bolt Set 6mm Dual Hex Fittings Set of 5 for 1X Chainrings group-dura-ace7700 5mm 53/39T Ultra TorqueWe designed these bolts to be the best on the market. These single chainring optimized bolts have a 4 mm hex socket on the bolt and a 6 mm hex socket on the nut so no spanner is needed. These are 6 mm long so they work perfectly with any bolt on single chainring that does not have threaded standoffs.