They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth

PACK SIZE: 1 (Single)

5mm thickness for strength and durability

Cartridge system makes it easy to replace brake pads without disturbing the brake shoe setting

Made from heat-treated 4130 chromoly that uses their 4Q baked treatment

Subrosa Hero Sprocket Size:28T They fit 104 BCD four-boltSubrosa's Hero Sprocket was designed and built to handle all kinds of abuse and finished with a look that stands out from the rest. Built from 6mm thick 7075 T6 alloy with a 5 spoke design that's stong and durable. The Hero features offset teeth for better chain alignment and comes with adapters to allow the Hero Sprocket to be run on 19mm, 22mm and 24mm cranks. ###section### Product Specs TYPE: Bolt On MATERIAL: Alloy WEIGHT: 161g (5. 72oz)