hi
ive got a pair of Girling calipers that came with the hillclimb mini, but we swapped them out for standard cooper S calipers (needed new calipers in a hurry)
the calipers are massive (nearly 50mm diamiter pistons) but are incredibly light , they have been modified to fit under 10 inch wheels (someone took a grinding wheel to them, (photos attached))
i recon they would be worth fixing before next season as they should be an inprovement on the standard cooper ones, but does anyone know how they might compare to 4-Pot calipers?