The Gates CDN Center Track crankset has been specially developed for use on city and everyday bikes. Bikes that are ridden in all weathers, parked at the station or outside your home. Bikes where reliability is paramount. The CDN system is a quiet, clean, low-maintenance drive for everyday urban use and is based on the same carbon fibre technology as Gates' top components.
Features
Colour: matt black
Cold-forged aluminium crank with anodised finish 
Square taper (JIS standard)
Centre track design with central guide flange
Pitch: 11 mm
Alloy chain guard