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The Girodisc system is a direct replacement for the OE disc with the addition of our provided caliper spacers and longer bolts. Our rotor is slightly larger than the OEM rotor at 350mm versus 330mm providing greater braking force and cooling capacity.
The Fronts have original hats with replacement rings. The rings have had 3 track weekends. The rears are original and also have three track weekends.
These were off my 2011 Carrera GTS. These will fit 997 Carrera S, 4S & GTS.
Min is 31mm front and 25 mm rear(read from the caliper). New they are 34mm and 28mm. So these have a lot of life left. I got the specs from a rennlist thread because Giro Disc's site seems to be down for me.