Replace chain with new 7-speed Cassette?
05-30-19, 07:00 AM
#1
Senior Member
Thread Starter
Replace chain with new 7-speed Cassette?
Hello all,
I just got a new 7-speed cassette installed on my commuter bike.
I am using my old Sram PC850 7/8-speed chain with it. I estimate I have put around 1700-1900km on the chain since it was new about a year ago. My chain wear indicator says the chain is 0.5% worn, but not yet 0.75% worn. Was using this chain with a pretty worn freewheel.
I have noticed my drivetrain is not as smooth as I'd like with the new cassette, even when the chain is freshly lubed. A few sprockets give me a kind of "crunchy" feeling when pedaling, while others are perfectly smooth feeling.
Time to replace the chain too?
Thanks!
I just got a new 7-speed cassette installed on my commuter bike.
I am using my old Sram PC850 7/8-speed chain with it. I estimate I have put around 1700-1900km on the chain since it was new about a year ago. My chain wear indicator says the chain is 0.5% worn, but not yet 0.75% worn. Was using this chain with a pretty worn freewheel.
I have noticed my drivetrain is not as smooth as I'd like with the new cassette, even when the chain is freshly lubed. A few sprockets give me a kind of "crunchy" feeling when pedaling, while others are perfectly smooth feeling.
Time to replace the chain too?
Thanks!
05-30-19, 07:17 AM
#2
Senior Member
New cassette or chainring - always new chain unless it only has a few miles on. Saving on the cheap chain is false economics.
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05-30-19, 07:20 AM
#3
Senior Member
Thread Starter
I guess now I am looking for a good quality chain. The KMC X8.99 seems really good (KMC's top of the line 7-8 speed chain), I found it for $13 shipped. I really like the missing link.
05-30-19, 11:03 AM
#4
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05-30-19, 01:20 PM
#5
Newbie
I always do new chain with a new cassette or freewheel. Not worth it to try to get a few more miles on the old chain and cause unnecessary wear on the new cassette IMO
05-31-19, 06:43 AM
#6
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Toss your chain checker and measure your chains with a good steel rule.
06-01-19, 05:04 PM
#7
Senior Member
Thanks for your response! Yeah, in my mind it was still "new enough", but when I did the math, I've actually put a decent amount of miles on it!
I guess now I am looking for a good quality chain. The KMC X8.99 seems really good (KMC's top of the line 7-8 speed chain), I found it for $13 shipped. I really like the missing link.
I guess now I am looking for a good quality chain. The KMC X8.99 seems really good (KMC's top of the line 7-8 speed chain), I found it for $13 shipped. I really like the missing link.
06-02-19, 01:44 PM
#8
Banned
The Precautionary sort extends the cassette, life with frequent chain replacements,
or as others offered cassette & chain go together.
or as others offered cassette & chain go together.
