Promax 4-Bolt Chainring - 42t 104 BCD Black MFPN=ST0009 Bushings) - Maven Bronze A1

Bushings) - Maven Bronze A1

a plethora of advanced safety features

2G Cassette Lockring Tool with 5mm Guide Pin

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5" Tapered 50mm Rake 12 x 100mm Black

Promax 4-Bolt Chainring - 42t 104 BCD Black MFPN=ST0009 Bushings) - Maven Bronze A1Promax 4 Bolt Chainring 42t 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