Cassette Damage??
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134
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1721 days
rjkowski posted 3 years ago.
My first guess would be that the lockring that holds the cassette on the hub has worked itself loose. Try taking the casette off and inspecting all of the pieces. Make sure that none of the cogs or spacers are bent or damaged and that there isn't some sort of foreign material in between the pieces. Then put the cassette back on and make sure you tighten the lockring to the recommended torque (Shimano lists the torque spec on the lockring).
Does the drivetrain make odd noises with the "out-of-true" cogs? Is your shifting affected. If you disassemble and then reassemble and find that it still appears the same, then it might be ok if it is not affecting the shifting or normal operation of your drivetrain.
64
Member
1792 days
sparknote_s posted 3 years ago.
Hopefully you greased the lockring the first time you tightened it, so you can get it off. Check everything out, then put it back on. You don't need a torque wrench. Just make it really tight.
Do you have a chain whip and a lockring wrench?
461
Member
1668 days
rbreddin75 posted 3 years ago.
I have the right tools for the job...
I'll strip it all down, inspect, and re-assemble it this evening.. I'll let you guys know what I find out..
(I was just curious as to whether any of you have had this happen before?)
[URL=http://rbreddin75.trifuel.net/][COLOR=DeepSkyBlue]PARADIGM : Triathlon
As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]
As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]
835
Member
1734 days
glbrum posted 3 years ago.
I had something similar happen a while back. The lock ring was a little loose allowing hte free cogs to slide a little bit. Just crank down the lockring super tight and you should be fine.
232
Member
1677 days
ironmike12 posted 3 years ago.
Check your free hub, that could be causing the cog to be untrue. That happened to me about a month ago.
461
Member
1668 days
rbreddin75 posted 3 years ago.
glbrum wrote:
I had something similar happen a while back. The lock ring was a little loose allowing hte free cogs to slide a little bit. Just crank down the lockring super tight and you should be fine.
I initially thought that was the issue.. but a few days ago I went to tighten it and it was on there pretty good...
I did 25 miles lastnight and didn't have the first shifting problem (knock, knock) I'll try to strip it down tonight... (it's due for a thorough cleaning anyway)
[URL=http://rbreddin75.trifuel.net/][COLOR=DeepSkyBlue]PARADIGM : Triathlon
As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]
As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]
I recently purchased an Ultegra 12-27 cassette for a complete dura ace drivetrain (10sp). When I installed it I ran the cranks backwards to make sure that each cog in the cassette was spinning true - IT WAS!
Since that point I've put maybe 200 miles on my bike
Last weekend I was cleaning the chain and noticed that the first 6 cogs (from 12 up) were spinning slightly out of true(+/-1mm), but the last 4 (that come mounted together WERE spinning true..
I assume it needs to be fixed.. (no?)
Any Ideas what may have caused it? (I've had no crashes, no contact of any kind)
Any Ideas how to fix it without buying another cassette?
Anyone else ever had this happen?
As Iron sharpens Iron, so one man sharpens another. proverbs 27:17
[url=http://www.northatlantamultisport.org]