OEM CR2032 3V Lithium Battery used in most CatEye cycle computers.

CatEye's Out Front Bracket frees up your handlebars and positions your favorite CatEye computer just in front of your stem for optimal viewing and accessibility.

Wheel magnet for all CatEye cycle computers

The H-34 Flex-Tight Bracket is an OEM handlebar bracket so you can attach Cateye accessories. It fits all handlebars up to 32mm in diameter.