Shimano dura ace 7900 cassette New and boxed 10 speed 11-28 which is much easier than the smaller cassettes on this hills. This is a 7900 cassette and is the last of the 10 speed Shimano groups. Being 10 speed you can sometimes use it with a 7800 10 speed rear mech but on some bikes the 7800 rear mech will rub on the 28 tooth top cog. I have a 11-27 dura ace cassette on eBay also. This is officially the biggest cassette for the 7800 10 speed group. It will also work with cheaper Shimano 10 speed group sets but that would be a waste. Posted Royal Mail with tracking number
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