11 - 23 DuraAce cost. Used to be common as many would toss that small size for a kinder 28; 23's are bears as far as versatility. I would avoid SunTour; Sachs may be OK. Shimano compatible ones are listed as such. Sellers know what's what. Jenson has new Ti 23s for one ten which is much lower than it used to be and as I've noticed, Ti's been more commonly found in the DuraAce realm for quite some time now. I'm surprised I saw little on e-bay.