MTB rear mech...

[AlecG]

Hello,

Just came back from a ride on my '07 meta 5.5.3, and have bent the rear gear hanger and sram 7.0 mech, so time for an upgrade me thinks....

What is the best value for money rear mech, was thinking XT...?

Thanks!

[Moose.]

XT Shadow. Looks the mutts, easy to setup and should be less likely to get ripped off next time

[AlecG]

That does look sexual...

Whats the difference between the xt shadow and the xt?

[Moose.]

To quote Bike Radar:

The new "Shimano Shadow" XT rear derailleur features an extra thin profile to move the whole thing inboard and prevent it from sticking out in harms way. The new Shadow mech also stops the thing banging against the rear chainstay - a problem SRAM mechs had sorted. The cable routing has been shortened since less cable simply means less friction for improved response.

http://www.bikeradar.com/news/article/new-shimano-...



Works as descibed for me

[snotrag]

Hooooold up...

Remember - if your going Shimano - then your gonna need new shifters.

If you can afford it, junk all the Sram and get M770 XT. (Keep the Sram chain though)

Shadow refers to the new slimline mechs - they stick out less from the frame.

[AlecG]

Thanks for your help

I dont think I have sram shifters (cant remember!) as I have an XT front mech!

[snotrag]

If you got a Sram rear mech, you got sram shifters.

Front mechs are cross compatible, rears are not.

[WildCards]

Cheap

Cheaper

Cheapest


Bobs your mothers brother!

[pdV6]

snotrag said:

If you got a Sram rear mech, you got sram shifters.

Front mechs are cross compatible, rears are not.

Unless you (like me) are running SRAM Attack shifters, which are Shimano-compatible!

[mk1fan]

But he's not running Sram Attack because he has an X-7 rear mech.

I'd buy an X-9 rear mech. And then some Formula brakes so that you can use a Matchmaker clamp and tidy up the cockpit.

[Gooby]

Sram mech and shifter clunky and horrid, go get the XT or XTR heaven.

[mk1fan]

I, on the other hand, love 'em.

Different strokes an all.

[P-Jay]

Shimano mechs are ok as long as you don't get them dirty. Honestly show them a bit of good old british mud and they clog up.

[wildoliver]

How come I had an sram (cheap one about £30 is it the 3.0??) rear mech working with shimano shifters then?

[pdV6]

wildoliver said:

How come I had an sram (cheap one about £30 is it the 3.0??) rear mech working with shimano shifters then?

Some do (those with 2:1 cable ratio) and most don't (with 1:1)

[mk1fan]

Regarding MTB rear mechs. Sram uses a 1:1 cable pull ratio on their high end rear mechs and a 2:1 ratio on low end. Shimano use a 2:1 ration on all their rear mechs. Sram also produce 1:1 and 2:1 shifters. The ratio pull is marked on all the Sram products to make it easy to confirm compatibility.

[wildoliver]

Ahhhhhh!! Lucky I'm a cheap skate then!

But why would any manufacturer split the range like that? I can see the benefits of 1:1 but unless everyone does it then unless your the big manufacturer EG. Shimano you just make life harder for ordinary users and probably put a lot off due to compatibility.

[AlecG]

mk1fan said:

But he's not running Sram Attack because he has an X-7 rear mech.

I'd buy an X-9 rear mech. And then some Formula brakes so that you can use a Matchmaker clamp and tidy up the cockpit.

I have some formula brakes already But thanks, gone for the X9, pick her up on tuesday

[pdV6]

wildoliver said:

But why would any manufacturer split the range like that? I can see the benefits of 1:1 but unless everyone does it then unless your the big manufacturer EG. Shimano you just make life harder for ordinary users and probably put a lot off due to compatibility.

You've just answered your own question.

The SRAM X-series shifters and mechs are 1:1 as SRAM reckon they work better than the Shmimano 2:1 stuff and a lot of folk agree with them.

In the interests of compatibility, though, they do another (cheaper) range of 2:1 shifters that you can use with Shimano mechs (as I do).

I use Shimano mechs because they're cheap and pretty reliable but I prefer the push/push triggers of SRAM, so I use the Attack shifters (I'm also using 8sp cassettes) which are 2:1.

If I had the spare cash and could persuade myself to go 9sp, I'd probably ditch the lot for an X9 setup (1:1).