Join Date: Apr 2002
Location: Montréal (Québec)
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You sure can. Sheldon Brown actually sells custom cassettes from Shimano offerings + 1 or 2 cogs (see http://www.sheldonbrown.com/harris.k7.html
), and I have on my touring bike a cassette with 12-14-15-16-17-19-21-25-32, which I created with a 12-25 and a 11-32.
A few points to remember:
- MTB vs Road : marketing differenciation only. IOW, take the gearings you want.
- Quality: The lower levels (HG-50, HG-70, 105) are made of individual cogs bolted or riveted together. Remove the rivets or bolts if you want and swap cogs with other series. The higher series put the 3 to 5 largest cogs on a spider to save weight; however, you must swap these cogs in series... not a good idea for customisation. The only advantage of the spider construction (and of Titanium) is weight saving, not durability.
- In theory, you should be able to find individual cogs. I don't think many shops offer them separately, however...