Confident 5 cogs will fig on ck SS hub, will I be able to fit 6 (10spd) road cogs without modification to the back of the cassette ? Was thinking a dura ace 10 spd cassette, running something like 15-28?

Just not sure whether I'd have to take material off the back like is necessary on a mtb cassette like xt or Xtr.

Any help appreciated as I'm thinking of a last minute set up change before a big event and build a very wrong wheel.

Cheers