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Old 01-01-10, 05:42 AM   #1
Recess
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M770 shifter fitting - am I a complete idiot?!?

Please feel free to pepper this thread with abuse if I'm a complete dolt - but I've just replaced the shifters on my MTB with XT M770 shifters. Very nice, very smooth - but, the wrong way round for the cassette!??!

What I mean is that on every other MTB I've ridden, the thumb changes up the cassette to make riding easier, and the finger trigger back down for faster gearing, but not now!

Is it my connection? Is it meant to be this way? I replaced the derailleur too (M770 as well) - could it be something to do with that?!? Can't think what I could have messed up with the connection, (the only thing being the cable running over the top of the securing screw, not below) but thought I'd better mention it.

it's not a 'huge' problem, just means re-learning what how I've ridden in the past - but I thought I'd ask the experts on here what the operation of the shifters should be, just so I know if I've done something stupid.

Thanks in advance, and have a great 2010 everyone!

John
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Old 01-01-10, 06:08 AM   #2
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Some Shimano derailleurs are "low normal" meaning the spring returns the derailleur to the largest cog. The M770 appears to be one of them. The M771 is the "high normal" version.

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Old 01-01-10, 02:02 PM   #3
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Sounds like the derailluer is a rapid rise which works backwards compared to the normal shifting pattern. My XTR M960 rear der. is rapid rise and works as you mentioned. Once you get used to it, you'll probably like it more as I do.
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Old 01-02-10, 04:10 AM   #4
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Sounds like the derailluer is a rapid rise which works backwards compared to the normal shifting pattern. My XTR M960 rear der. is rapid rise and works as you mentioned. Once you get used to it, you'll probably like it more as I do.
Ah - cool, thanks VERY much for that, seems I just bought without reading properly. Time to relearn how to shift then. Thanks again,

John
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Old 01-02-10, 11:01 AM   #5
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Once you get used to it, you'll probably like it more as I do.
I'm surprised you prefer a spring to cable tension getting the chain onto larger cogs, even though it allows you to pre-shift to a lower gear while stationary...

That reminds me of a 'high-normal' Exage (I think) derailleur I had once... the pinch bolt was on a little sprung lever, allowing the pre-shift to low. Puzzled how it was such a unique feature; it seemed to work well enough, being quite a strong spring.
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