Promax 4-Bolt Chainring - 45t 104 BCD Black 500 LB It has reflectors on all

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

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

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

2 Primary Color Blue Bladder included Not Compatible Volume Range 0-5L Bag Material Deniers Ripstop Nylon Color Ocean Waterproof Water-resistant

GPS Yes Solar Charging No Battery Type Lithium Ion Primary Color Purple Touchscreen Yes Wristband Lilac - Silicone External Sensor Compatibility Speed/Cadence Heart Rate Monitor Yes Connectivity ANT+ BT SMART Customizable Screen Yes Watch Color Berry

Promax 4-Bolt Chainring - 45t 104 BCD Black 500 LB It has reflectors on allPromax 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