i just replaced the cassette (deore 9spd) and chain (wipperman 9spd) on my Stinky and the thing keeps skipping when i crank down hard. Why? this was why i replaced the drivetrain prematurely in the first place.
new drive train issues
- Thread starter stinky|Dan
- Start date
Replaced with the same cassette?
if your chainrings are pretty old/worn they may need replacing as well. also you might need to fiddle with your rear mech to ensure the jockey wheels are in line with the sprockets. hope this helps
thanks for the info guys, i figured it out that the middle chain ring which i always ride in is worn. Since its Friday my shop cant get a new one until next week so i'll just have to do my DH runs this weekend in the big ring. We have pedally courses on hills over here in Perth so it'll be tough going.
Try to stay out of the worn ring if possible, or you will stretch your new chain and wear out your new cassette faster 
if the worn middle ring is what caused the problem in the first place. That way you won't prematurely wear out the new chain and cogs, until you get that new ring.
In other words, if it ain't broke, don't fix it.
in other words, don't replace a drivetrain until it breaks completely?
Oh how I love sloppy shifting
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Ha, no way i'm putting the old crap on. I'm just riding in the big ring cuz that is barely used. I'm racing DH this weekend anyway so i can afford to wait for my new middle ring. The fresh drivetrain is so much nicer.
nah. replace the chain before it's worn out and the rings/cassette will last twice as long.Originally posted by Rik
in other words, don't replace a drivetrain until it breaks completely?
Oh how I love sloppy shifting
BTW Chains don't stretch, the rollers wear, giving the impression..
I understood (& Experienced) that when the chain starts to "stretch" you really don't notice it.
But when this causes the cassette to wear, the teeth start to "shark-tooth" then you get skipping at hard torque.
Then when the ring(s) start to wear you get chain suck.
I've never had chain skip from the front rings, that must be pretty bad! I'd think the skip would happen from the rear first, unless you replaced just the cassette and not the ring(s)...
But when this causes the cassette to wear, the teeth start to "shark-tooth" then you get skipping at hard torque.
Then when the ring(s) start to wear you get chain suck.
I've never had chain skip from the front rings, that must be pretty bad! I'd think the skip would happen from the rear first, unless you replaced just the cassette and not the ring(s)...
Actually, he said he replaced the chain and STILL had bad shifting. Since it didn't improve, then I suggested he not conrtibute to premature wear on one new part, until he gets in the other new part. I stand by my suggestion. Also, yes, changing the chain before it's worn will make it last longer. But, the one who said chains don't stretch is wrong. Yes, rollers wear thin. But chains stretch as well. Take a brand-new chain and lay it flat and straight and compare it to a worn-out one. You'll see that the same number of links on the worn-out one are longer than the same number of links on the new one.Originally posted by Rik
in other words, don't replace a drivetrain until it breaks completely?
Oh how I love sloppy shifting
Chains have a small amount of play at each link, even when brand new. As a chain is ridden, it wears the rivets, and the play at each link increases. This is seen as "stretch", although the plates do not literally become longer.
Do you think the plates grow or something?
Even were I to buy your argument -- and I have no doubt that it is PARTLY correct -- the effect is the same: The rollers aren't just thinner; the chain is longer.Originally posted by Gorse
Chains have a small amount of play at each link, even when brand new. As a chain is ridden, it wears the rivets, and the play at each link increases. This is seen as "stretch", although the plates do not literally become longer.
Do you think the plates grow or something?