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Laser · **Posts:** 2166 **Location:** The land were time forgot

After twisting rear derailleur I got a Shimano XT M772 to fit my Rockhopper SL. It doesn't fit hanger the knuckle on hanger misses knuckle on derailleur.

So Shimano XT M772 going back.
Did have a Shimano Deore M592 is there much difference in M592 & SLX M662 other then price? and would the SLX M662 fit?

Ta
Spoon fed

nwmlarge · **Posts:** 3548 **Location:** essex

Do you have a photo of it "not fitting" ?

Laser · **Posts:** 2166 **Location:** The land were time forgot

Have posted on BR about changing hanger. Apparently can't change hanger to fit derailleur.
In photo one & two hanger moves above knuckle. That if it is called a knuckle!

ta

Eccles · **Posts:** 1166

Spence, I may be wrong but in your photos they show a 2d lug on the derailleur mounting, this should be the one that touches the 'knuckle' on the hanger, it's kind of like a rivet sticking out. See:

nwmlarge · **Posts:** 3548 **Location:** essex

What is the other part poking out above the knuckle should that not have a small cylindrical tab poking out of it?

it may be that the mech is faulty from the factory as the mech hanger looks perfectly normal mine is the same as that

Laser · **Posts:** 2166 **Location:** The land were time forgot

Looks right

mm could it be fitter error :oops:

Thanks

Eccles · **Posts:** 1166

Yep. When fitting, swing the whole mech right back and up, then just before tightening completely, swing it back down and the stop should meet the dropout hanger correctly. Your mech looks fine.

nwmlarge · **Posts:** 3548 **Location:** essex

At least it was a cheaper and more straight forward solution!

Eccles · **Posts:** 1166

How much did you get the mech for? Was looking at getting one of these, £46.99 from CRC seems to be the best, cheaper than the German sites even.

Laser · **Posts:** 2166 **Location:** The land were time forgot

Mm o dear looks like layer 8 error :oops:

was lining up with wrong lug

Thanks both :thumbup:

Yes got it from CRC and had over a week :mrgreen:

chatman · **Posts:** 2755 **Location:** Riding my bike somewhere

Hahahahaha nice one spence :-)

Now to index those gears once you've fitted it.......

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Rear mech advice please

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