The two head honchos of Box Components, Toby Henderson (Owner) and originally Michael Gamstetter (Head of Design) brought a wealth of design driven components to the BMX race market. All of their products look amazing and the Cosine chainrings are no exception. These are made from 7075 aluminium alloy and then Type-3 hard anodized to increase abrasion and wear resistance.

“The Box Cosine 7075 Hardcoat chainring is built harder to run better and simply last longer on your bike.”

The Box Cosine 7075 Hardcoat chainring is built harder to run better and simply last longer on your bike.