On Thu, 29 Jan 2004 11:01:49 +0000, Chris Harris <
[email protected]>
may have said:
>I have noticed that the chainrings on my touring bike have become very worn and would like to
>replace them. They are marked Shimano SG, the sizes are D-48, D-38, D-28. Could anyone recommend
>some suitable replacements?
If you need just one sprocket, there are lots of choices available, including genuine Shimano. If
you need all three, I think you'll discover that a mid-price crank set complete with chainrings will
be cheaper. The 48 tooth large sprocket is more typically found on a mountain bike than a tourer in
my experience, so you'll probably have better luck looking for a crank set in that market. Depending
on how they line up, you may or may not need to replace the bottom bracket in order to use the
replacement cranks. (Be aware that there are differences in the bottom bracket shaft on some bikes,
though; you most likely are looking at a crank that has a square-taper "shimano style" mount; ISIS
and Octalink cranks definitely won't work with your existing bottom bracket, and most Campagnolo square-
taper cranks will look like they'll work, but they'd be wrong. If you buy a bottom bracket to match
the cranks, then any type can be installed.)
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