Promax 4-Bolt Chainring - Black Teeth Count:42T Its hands-free inflation with a

Its hands-free inflation with a Presta alloy head and auto-stop digital control ensures precise pressure while the durable aluminum casing resists damage

Model Rage Circuit Travel/Drop 150mm Diameter 31

Attaches and detaches from the bicycle in seconds

Drawers are 22

Promax 4-Bolt Chainring - Black Teeth Count:42T Its hands-free inflation with aMachined 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 Color Black Ring Position Type Single Tooth Count 41, 42, 44, 45 Round