In my experience fiddling with these things, this is what I've found. All Shimano, since I've never used any other system (well, Am Classic 10 sp cassette, but it was designed for use on a Shimano hub).
7 speed is narrower than 8; the freehub body is a wee bit shorter. 8 and 9 are the same width; 9 speed spacers and, I daresay, 9 speed cogs are a wee bit narrower. 10 speed cassettes fit onto the 8/9 speed carrier but the are designed with a cutout to fit over the rear flange of this carrier, and thus extend a wee bit inward compared to the flush-ending 8s and 9s. (I daresay that the spacer and cogs are a wee bit narrower yet. 11 I don't know from, since I've never used one. Thus from 5 to 6 to 7 to 8, the cassettes got a wee bit wider with each added cog. 8 to 9, the same overall width. 9 to 10, a wee bit wider. Does anyone know from actual eyeball and hands-on measuring what the actual widths of 5 sp fws and 6, 7, 8/9, and 10 speed cassettes are? As much as a cm between 5 and 10? If so, that's not much for a modern, flexy chain on 44 cm chainstays. As Grant replied once when I once fretted to him about wear and chain angle (I am paraphrasing his wordza wizdum): "If you are riding enough to cause considerably higher drivetrain wear at these angles, then count your blessings because you are riding a lot!? On Wed, Mar 26, 2014 at 1:35 PM, Jim Bronson <jim.bron...@gmail.com> wrote: > Regarding widening of the cogset, not all the 10/11 speed setups are > wider. Feel free to correct me here but this is my understanding: > > Shimano's 11 is wider than their 7(+spacer)-8-9-10. The 11 speed setup > uses a different hub. The 10 speed is no different than the 8 speed in > total cassette width. The actual gears and chain are smaller of course, as > is the spacing between gears. > > Campy uses the same hub setup for their 9-10-11 (don't know about 8). > Using the same hub architecture is probably one reason Campy was able to > roll out 11 speed across their product line fairly quickly. I assume the > spacing and the chain must be smaller than the 10 since the hub is not any > wider. > > I don't know what SRAM's 11 speed offering is. > > Anyway, carry on :) > > -- Resumes, LinkedIn profiles, and letters that get interviews. By-the-hour resume and LinkedIn coaching. Other professional writing services. http://www.resumespecialties.com/ Patrick Moore Albuquerque, Nouvelle Mexique, Etats Unis -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
