Promax 4-Bolt Chainring - 44t 104 BCD Black 58 +/-3% accuracy means youll always

+/-3% accuracy means youll always know your true watts output

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The Bird Cage rim features an aero cross section with a hollow rim bead to reduce weight

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Promax 4-Bolt Chainring - 44t 104 BCD Black 58 +/-3% accuracy means youll alwaysPromax 4 Bolt Chainring 44t 104 BCD Black. Machined from high end aluminum Promax 4 bolt 104 BCD chainrings are designed to handle the torque and stress of modern BMX racing and are fully capable in other single speed applications. CNC Machined from high grade 6061 T6 series aluminum for high strength while providing weight savings Designed to be used with most cranksets and spiders that utilize a 4 bolt 104 BCD chainring TECH SPECS Color Black Ring