The FREELINE BRAKE CLAIR PISTON (dimensions 32 x 24.5 mm) is a high precision spare parts of origin of original manufacturer (Original Freeline / Birel Art). It is designed to equip the rear brake calipers from the group's adult competition chassis Birel Art (notably the series of stirrups equipping the categories Rotax, X30, ok and kz).
Machined according to strict micrometric tolerances, this piston of 32 mm in diameter for a height of 24.5 mm enjoys a leading thermal and anti-friction surface treatment. In karting, the rear braking system undergoes violent temperature mounted (sometimes more 400 ° C. on the disk). This factory piston is specially treated to withstand the thermal deformation, ensure a perfect linear guidance in the bracket of the stirrup and guarantee an instantaneous pedal return without blocking.