Promax 4-Bolt Chainring - 45t 104 BCD Black 500 LB BB/Frame Interface BB30 BB Shell

BB/Frame Interface BB30 BB Shell Width (mm) 68 BB Shell Width (mm) 73 Weight 48 Spindle Interface Type Hollowtech II

Waterproof Water-resistant Bag Dimensions in cm 31x50x17 Bag Dimensions in inches 12

It has reflectors on all sides to ensure you remain visible to other people when commuting in traffic

It also prevents a broken spoke from puncturing the tubeless system and losing air

Promax 4-Bolt Chainring - 45t 104 BCD Black 500 LB BB/Frame Interface BB30 BB ShellPromax 4 Bolt Chainring 45t 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