New chain / gears skipping = worn cassette?
#1
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New chain / gears skipping = worn cassette?
Just put a new SRAM chain on my commuter bike, which has a 9-speed 11-34 Shimano cassette in the rear. Had a terrible commute to work -- chain won't stay in the 3 largest cogs without skipping around.
I believe this means I need a new cassette -- the existing one has about 4,500 to 5,000 miles, a lot in the winter grit. Any reason not to get a new one -- I have a hard time judging "tooth" wear on the cogs.
I believe this means I need a new cassette -- the existing one has about 4,500 to 5,000 miles, a lot in the winter grit. Any reason not to get a new one -- I have a hard time judging "tooth" wear on the cogs.
Last edited by BengeBoy; 06-10-10 at 01:54 PM.
#2
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Probably.
And do it soon. Too much riding on a worn cog will ruin your new chain.
And do it soon. Too much riding on a worn cog will ruin your new chain.
#5
Senior Member
Thread Starter
Thanks for the input.
Just to close the loop -- first, I did measure the chain. It was stretched, which was why I replaced it. Second, I discovered (to my embarrassment) that the really serious problem I was having was caused by the fact that I had improperly remounted the rear wheel -- the QR skewer was not tight enough, and the wheel was slipping under load. That's what was causing the slippage in the larger cogs.
Finally, I do think this cassette is worn, though -- I'm going to replace it.
Just to close the loop -- first, I did measure the chain. It was stretched, which was why I replaced it. Second, I discovered (to my embarrassment) that the really serious problem I was having was caused by the fact that I had improperly remounted the rear wheel -- the QR skewer was not tight enough, and the wheel was slipping under load. That's what was causing the slippage in the larger cogs.
Finally, I do think this cassette is worn, though -- I'm going to replace it.
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Aurorabucky
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02-06-12 03:16 PM