Originally Posted by
bobotech
Also how would you add the extra cog? the 8-9-10 speed cassettes are the same physical depth, the only real difference is the thickness in the gears and the thinner spacing.
I don't think the cogs are thinner, just the spacers.
Originally Posted by
bobotech
I believe he is referring to removing a cog from a 9 speed cassette for some reason, not using a real 8 speed cassette.
I think he has a 9-speed hub that didn't come with the bike, and he wants to put one more cogwheel on the 8-speed cassette that did come with the bike and put it on his 9-speed hub. He's confused because he's thinking a 9-speed cassette minus one cogwheel plus a spacer on the end is the same as an 8-speed cassette.