The Accossato radial clutch master cylinder is made of aluminium and natural anodising. The piston diameter is 16 mm. The distance is 18 mm: track use, also recommended for road use. The lever is available in black, short or long, with relieving eyelet (RST) or without (NRST). The radial clutch master cylinder is completely made in Italy; the screws are made of stainless steel, the bleed valve is made of galvanised steel and the seals are made of Formula 1 compound. There is an offset riser to reduce pump flex during clutching. Each component is designed to ensure the shortest passive stroke: when the lever is pulled, the gap between lever activation and actual braking is reduced by more than 50%, compared to any other radial master cylinder. The screw pitch for mounting the hoses is M10x1. The brake light switch is not included: it can be purchased separately under part number ID001 or ID002. The fluid reservoir is not supplied with the clutch master cylinder, but can be purchased separately by choosing from various models.