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Trying to fettle about with a new SLX 9-speed rear mech bought off here, but cannot get the bugger to engage the smallest sprocket. Have tried the usual malarkey - limit adjusters etc, but even with the cable unattached, it doesn't want to go there.
Don't think the hanger is out of shape - is there anything else I'm not thinking of?
Take out the limit screw and see if it will move across. Prehaps there's grit between the acrew and the stop?
If your previous mech shifted down fine then the hanger's probably ok.
Is the new mech damaged (bent inwards) possibly?
Take it off the bike and give it a damn good clean and inspection, see if you can identify anything that could be fouling the movement.
With the limit adjuster all the way out a mech should easily shift way past the smallest sprocket.
Cheers - will have a close look.
Hmm. Could find no obvious signs of bentness in the mech itself. Eventually got it onto the little sprocket, but only by bodging a little washer shim between the hanger and the derailleur.
But considering the shifting is still blimming awful, I may go and get a second opinion from someone a bit more professional...
Try a bit more B-tension, if the chain's wrapped too tightly/too far forward around the sprocket you may well suffer very poor shifting as you're pushing the chain against the side of the teeth rather than lifting it over them.(too much B-tension can also cause problems as the extra distance between jockey wheel and sprocket can allow the chain a bit more room to flex rather than shift)
Think I may have more or less sorted it. Chain was a tad too short, plus some b-screw adjustment has made the shifting a bit smoother. Still has the bodge in place though, once I got it working I didn't have the heart to take it out and start from square one...
Thanks all for your help.