Promax have dropped a chainring that is possibly the most reasonably priced CNC machined chainring on the BMX race market. Manufactured from high-end aluminium, the 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.

These are a great upgrade for the club racer looking to change up the standard gearing on their race bike without breaking the bank, and without compromising quality.

Features

• CNC Machined from high grade 6061-T6 series aluminium for high strength while providing weight savings
• Designed to be used with most cranksets and spiders that utilise a 4-bolt 104 BCD chainring

Specs:

• Material – Aluminium
• Tooth Count – 41, 42, 44 and 45
• Ring Position/Type – Single
• Drivetrain Speeds – Single Speed 3/32″
• Chainring BCD – 104