Old data at this point I think. Mezzos have (I believe) a 349x35 tire. The D9 is 54 x 11-26, which yields 33.4 to 78.9 gear inches. Basically similar to the stock Tikit. The D10 is 56 x 11-28, which yields 32.1 to 81.8. The D9 doesn't even have a Capreo any more, unlike what A2B thinks. A2B really needs to broaden and update that buying guide. Highly British in perspective, and a bit dated.