Shimano LX Rear Derailleur cable got stuck in the cassette

[we78]

(10-28-2012, 09:24 AM)RobAR Wrote:  Hi we78. Welcome to BT!
After more than 20 years as a bike mech, I can honestly say that this is a new one to me. I have seen some very strange things happen, though. Have a look at this page, about half-way down.
http://www.parktool.com/blog/repair-help/cutting-cable-housing
This shows what the loop leading to the rear drlr should look like and why.
Unless your housing was routed incorrectly, I just can not imagine that landing a jump would cause it to go anywhere near the cassette. As you purchased the bike pre-owned, who knows what the previous owner did.
If you were riding trail, there is always the possibility of a 'ghost stick' flying up and getting caught in a bad place at a bad time. I blame a lot of things on sticks!

Oh wait - a thought just occurred to me. Is this a full suspension bike? If so, was the launch or landing of the jump severe enough to cause the rear suspension to bottom-out that you remember? Was the housing out of the frame-stops anywhere (at the rear) when you were looking it over? That could cause all kinds of havoc!

Hi.
Thanks for the quick reply.
It's a full suspension bike (kona coilair 2009). The jump was actually quite small (less than half a meter off a ramp), I doubt anything like that could happen.
It is possible that some branches got stuck in there and made the cable housing go to the cassette as I remember removing some at some point from that area (didn't connect the dots until now). I will reinstall new cable housing in the manner that article describes and see if the problem will occur again.
Its good to hear that its a rare (or unheard of) issue, since I started wondering if perhaps there is a problem with the LX design, since on other derailleur I saw the cable is connected differently (there isn't such a big loop as on the LX, on SRAM if I recall correctly).