For cars already fitted with rear discs as standard, if you fit a large front brake conversion we can supply you with a 300mm rear disc kit. The kits comprise of 300mm vented or solid discs, alloy bells, mounting brackets, nuts & bolts and fast road pads. This kit retains the standard rear calipers which have a mechanical handbrake fitted on them. Retaining the rear calipers also keeps the braking balance right.