Product Details: CNC Machined from Billet 6082-T6 Aluminium Manufactured in Devon, UK 16mm Bore for optimum clutch action Adjustable between 15, 16 and 17 ratio Fits all standard 22mm handlebars 130mm Aero lever to reduce drag Fully road legal Hard wearing black anodised finish Integrated, removable brake light switch In-depth Information Solid Billet CNC Machined HEL brake master cylinders are precision machined from race grade solid billet 6082-T6 aluminium - maximising weight and minimising material used. Machined and forged components are NOT comparable, so be sure to insist on machined for the very best design, precision construction and finish on the market. Adjustable Ratio Lever The lever utilises variable position plugs. One plug .