Accossato Radial Brake Master Cylinder is made in aluminium and natural anodyzing. The Piston diameter is 17mm: suggester for motorcycles with calipers with a distance of 32mm or less. The distance is 18 mm: track use, also recommended for street use. The Lever is available in black colour, short or long, with lightening eyelet (RST) or without (NRST). The radial brake master cylinder is fully Made in Italy; the screws are made in stainless steel, The bleeding valve is in zinced steel and the seals are made with Formula 1 compound. There's an off-set riser, in order to reduce the bending of the master cylinder while braking. Every component is designed to guarantee the shortest passive stroke: pulling the Lever, the space between the activation of the Lever and the actual braking is reduced by over 50%, compared to any other radial master cylinder. Screw pitch for fitting the hoses is M10x1. The stop light switch is not included - you can purchase it separately using code ID001 or ID002. The fluid reservoir is not Provided with the master cylinder, you can purchase it separately choosing between several models.