PM, Contour hydr. brake master cylinder 9/16" bore. CC - For use with 1" handlebars 570053 FITS 979000 OEM STYLE CLUTCH

FITS 979000 OEM STYLE CLUTCH SHELL & SPROCKET

OEM replacement reference 27157-89

Compatible with all forks

For slower advance curve

PM, Contour hydr. brake master cylinder 9/16" bore. CC - For use with 1" handlebars 570053 FITS 979000 OEM STYLE CLUTCHContrast Cut hydraulic brake master cylinder. Compatible with 1" handlebars. PM recommends the use of 9 16" bore with all 4 and 6 piston single caliper set ups. Note: The use of the small 125x2 2 piston caliper is not recommended for regular street use. If you insist on using the small calipers, PM advises the use of 9 16" bore handlebar master cylinders with both single and dual caliper set ups. Note: Switches & switch housing must be purchased