Is this a chain worth changing?
#1
Member
Thread Starter
Join Date: Oct 2008
Posts: 26
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Likes: 0
Liked 0 Times
in
0 Posts
Is this a chain worth changing?
I've got a Shimano 9-speed that I suddenly realized as 3,300 miles on it, and judging by my ruler, is pretty well worn. But it pedals and shifts fine.
Should I bother putting on a new one or wait till things get bad and switch the cassette at the same time? Will I be dooming my crank rings as well?
Steve M.
Should I bother putting on a new one or wait till things get bad and switch the cassette at the same time? Will I be dooming my crank rings as well?
Steve M.
#4
Senior Member
This topic has been covered so many times it is ridiculous. Measure the actual elongation with a precision 12" rule. It's probably well beyond 12-1/16" between 24 pins but perhaps not.
The only way to know for sure if your cassette is trashed is to put a new chain on and see if you get chain skip on one or more cogs, while pedaling under a heavy load.
You can probably keep using the chain until the elongation reaches 1% or 1/8" over 12 inches without hurting the chainrings, but then you can be assured that some cogs will skip with a new chain.
The only way to know for sure if your cassette is trashed is to put a new chain on and see if you get chain skip on one or more cogs, while pedaling under a heavy load.
You can probably keep using the chain until the elongation reaches 1% or 1/8" over 12 inches without hurting the chainrings, but then you can be assured that some cogs will skip with a new chain.