
Are 9sp road cassettes the same width as an Mtb 9sp?. My commute / can't be arsed to get wet & muddy again / lack of time ride is a Boardman hybrid running X5 & X7 with an off road cassette on it & find I only ever use 3 gears, I'm not sure what the cassette is but I'm looking to replace it with a close ratio block (Ultegra)