Caliper alloy black 4 pot for 7.5″disc with s/steel pistons

Pair of 4-pot alloy calipers for 7.5″ diameter brake discs with 10″ wheels. Kit includes pad retaining pins, but not brake pads.As used on Peter Baldwins minimiglia challenge winning car for 3 yearsNote: uses Metro pads which have to be modified by cutting/filing off a small corner part of the metal on two pads. This does not impair the quality of this fitment.The advantage of alloy calipers is that they dissipate heat quicker, reducing fluid boiling. The design also helps to expel pad dust and heat from the contact area. The 4 pot design provides a much more uniform pressure and far superior braking by virtue of 2 pistons each pushing against the pad,increasing pad contact and brake efficiency.For vented discs you will have to machine down the 8.4 disc or purchase GBD497 but this will cut most of the vented part away and may not greatly improve the breaking efficiency much more, using vented discs will require drive flanges NAM6450F and a spacer kit C-AJJ4021 for increasing width of calipers. Please state if being used for vented discs.Another Quality feature of the Minispares Calipers is that they are fitted with 2 larger bleed screws for ease of bleeding when servicing, we have noted other competitors calipers which only have the one small bleed screw become corroded, siezed and break off causing much inconvenience. Please ensure all the old brake fluid is removed from the system before fitting the new calipers as this prevents any bits in the old contaminated brake fluid from becoming lodged under the bleed nipples which could cause obvious problems.