[caputo1989]

Ok my old XT front der. broke so I got a new XTR.
Now that I have it on I shift into my big ring the chain slips and wont catch on except in one spot.

Is my chain ring worn out or Am I a sh*** wrench?

BTW I also put a new chain on.

 

[BikeGeek]

Chains and rings tend to wear together. Especially if it's a ring you use a lot. I've never had shifting problems in the front from a new chain/old ring combo though, usually it's in the back. If it's only catching at one spot, could your ring be bent?

 

[caputo1989]

Nope not bent. I did order a new ring, so we will see.

 

[-dustin]

tighten the cable, and make sure the limit screw is adjusted properly....that's my suggestion.

 

[caputo1989]

I already did.
The Der. pushes the chain into the chain ring but the ring wont grab it and pull the chain on.

 

[-dustin]

i know exactly what you're talking about. it's probably grabbing right at the little pin. i bet if you ride it, it won't shift at all.

i say check alignment, check limit screw, then tighten cable.

 

[caputo1989]

It does shift when I ride it. It just dosn't do it well or fast. Though it does shift in to the the middle ring. Alignment is good an the limmits are set.

I felt the ramps and they feel rounded off and the pins are that used too stick out at the top of the ramps are flush to the ring.

 

[caputo1989]

Ok it was the ring.
I just instaled the new one and, there is a huge difference.
no more 5sec shift lag.
cut to 1.5 sec and then re re-aligned the der. and cut it to a crisp fraction of a seccond.
So all of us were right.