These were on my 06 749 dark track bike when i bought it last year. They had been on for about 3 years but not used during that time as the bike had been stored. Ive used them on about 4 sessions across 2 track days before i switched to hpk discs and brembo pads. About 3mm friction material left No idea if these are of interest to anyone Gbp 45 inc postage mainland uk