The specific cassette in question, the 9 speed 12-36, consists of 8
riveted-together sprockets 14 thru 36 and one loose 1st position
sprocket. Can you do without a 1st position sprocket? Because that's
what is being proposed here. It may be simplistic to think this way, but
if you didn't need a special 1st position sprocket why would they bother
making special 1st position sprockets?
It may be possible to drill out the rivets and take that cassette
apart. I didn't look at them closely when I put two of them into
service earlier this year or late last year. But for sure, it would be
a lot of work.
On 8/9/19 4:07 PM, Ash wrote:
Garth, I have wondered about this as well. I never use two outer
cogs. With the chainring combo I have, my chain line is always off.
When I'm using the large chainring, the chain is toward the left of
the center and vice versa. I can't go any smaller on the large
chainring. (Campy - 46t is smallest I could find). If I could have
14t as my smallest cog, my chain line would be almost straight when
I'm using either chainring.
One day I did try what you are contemplating. I put two smallest cogs
all the way inside as spacers. Did couple of rides. Then decided to
revert it back pending more research about any potential safety issues.
There's a very valid use case here!
On Thursday, 8 August 2019 02:28:24 UTC-7, Garth wrote:
I'm venturing into cassettes and wondered if there were any
complications in rearranging a 9-speed Shimano 12-36t cassette by
placing the 12t cog in the innermost position and then only using
the 14-36t cogs for riding. Essential it's using the 12t cog (I'm
assuming it has a built-in spacer) as a spacer. Or for 8 speed
spacing do the same with a Sunrace 12-34 and make it a 14-34 with
7 usable cogs, placing the 12t w/spacer at the inner position. I
simply have no use for 11 or 12t cogs and would rather use that
space for cogs that I *do* ride. My rings are 24/36/46 and I
really do prefer riding in the largest ring most of all.
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