|   Cassette question | wyrm
Nov 25, 2003 8:49 PM | | My rear derailluer blew out three weeks ago when I did this tail whip into a tree. The derailluer along with the chain got caught up in the spokes. Long story short......I've replaced the derailluer with the 04'XT and the chain with Sram PC-99. I know the cassette and the chain need to be replaced together, but I only have 600miles on the cassette(Sram 7.0, 11-34). My problem is the chain is skipping, could it be the cassette is already worn to the previous chain? Could it be the new derailluer and my lack of knowledge when setting up the Rapid Rise?
Help........Wyrm |
| re: Cassette question | eayste
Nov 25, 2003 9:12 PM | | Does it skip when you are putting alot of muscle into the pedals or all the time ?
If it does it in a couple of gears when you are powering a gear then it may be the cassette.
If it does it in nearly every gear and makes a noise that it is trying to shift then it is derailleur adjustment is off. |
| I'm still trying to figure that out. | wyrm
Nov 25, 2003 9:37 PM | | So far it's been in the middle of a pace or stride. I haven't had too much time on it to crank out muscle power. I've played with derailluer alot trying to get it to shift. When the high gear shift right then the lower gears skip and visa-versa. |
| I'm still trying to figure that out. | Graw
Nov 25, 2003 11:28 PM | | From what you've said, I think its a derailuer problem. 600 miles isn't much. Try setting the der. so that the upper pulley is alligned with one of the middle cogs while in that gear, rather than the largest or smallest cog. That should fix it. |
| From what you describe I'd say check the derailleur hanger.... | Squash
Nov 26, 2003 4:13 AM | | sounds like it may be bent. If you smacked a tree hard enough to blow your rear D, it's a pretty sure bet that the hanger took a good hit too. It doesn't take much missalignment to cause problems. If it's a replaceable hnager I'd recommend replacing it just on general principles. If it's not replaceable take the bike into a shop and have them check it. From the sounds of it you didn't tweak it much or you would have noticed it when you replaced the rear derailleur, but like is said above it doesn't take much to cause problems.
Good Dirt |
| I Second that... Probably the Hanger..nm | Loose Screw
Nov 26, 2003 5:21 AM | | |
| re: Cassette question | Polk
Nov 26, 2003 10:43 AM | | "I know the cassette and the chain need to be replaced together..."
Absolutely not true. I probably go through 4-6 chains per cassette, I just replace the chain when there is about 1/16" per foot of stretch. Not only does this save the cassette and chain rings, a worn out chain doe not shift well because it is too flexible from side to side.
Now, off my soap box, and back to your original question. The derailleur hanger sounds possible. Eye it up from the back of the bike with the derailleur still on and see if it's in line. If not, give the hanger a little tweek with an adjustable wrench. |
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