The park tool chain brite cleaner cb 2 citrus chainbrite is specially formulated for use in the park tool cm 5 cyclone chain scrubber it removes the toughest grease and grime build up from chains and bicycle components park tool chain brite cleaner features it removes the toughest grease and grime build up from chains and bicycle components citrus chainbrite is also an excellent general purpose bicycle degreaser regular use of citrus chainbrite and the cm 5 and regula