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PostPosted: Mon Jun 20, 2011 3:17 pm 
MacRetro rider
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Joined: Thu Jul 30, 2009 4:56 pm
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Location: A Fifer furth o' the Kingdom
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Well I got the mech hanger today and it fits fine, but the LX front mech I got doesn't. It's a normal bottom pull front mech and isn't low profile enough to miss rear arm, which I hadn't thought of. I'll now need to find a 34.9mm mech like the one in Rob's pic above on his frame. Even it doesn't have much room.
I've got an old one of that type, a bottom of Shimano heap one, that is 31.8mm that I can make "fit". If I'm patient, a file and a bit of gentle bending of clamp will make it fit, if I'm not, an angle grinder and hammer might see some use. :roll:


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PostPosted: Mon Jun 20, 2011 3:39 pm 
MacRetro rider
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Joined: Sun May 24, 2009 9:55 pm
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Location: Orkney, and the moral high ground
How about one of those ones that are fixed to a plate that locks onto the bottom bracket?


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PostPosted: Mon Jun 20, 2011 4:13 pm 
MacRetro rider
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Location: A Fifer furth o' the Kingdom
TK mentioned that when I first said I needed a 34.9mm front mech.
That was maybe a clue :oops: that a normal mech might not fit. I was too thick to think it through. :wink:


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PostPosted: Mon Jun 20, 2011 4:16 pm 
MacRetro rider
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PostPosted: Mon Jun 20, 2011 4:26 pm 
MacRetro rider
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Location: A Fifer furth o' the Kingdom
:facepalm: :wink:


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PostPosted: Mon Jun 20, 2011 5:11 pm 
MacModerator
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The plate type also has a little fixing screw which attaches to a bit on the frame. What you need to do is get your head round the front mech varieties. You get top and bottom swing and top and bottom pull. I think you need a top swing bottom pull, but I'd check this yersell. If I get a chance I'll have a ruckle about the mech box, I had some oddities but they are buried somewhere.


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PostPosted: Mon Jun 20, 2011 5:17 pm 
MacRetro rider
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Joined: Fri Feb 09, 2007 4:16 pm
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Is this mech band size one of the three standard ones or is it different, I cant see why Marin would make a bike that didn't have a standard fit mech.
Shimano do a mech that is both top or bottom pull dependent on cable routing with the larger band size that comes with shims to fit the two smaller sizes. I have one currently fitted, best of all worlds :)


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PostPosted: Mon Jun 20, 2011 7:46 pm 
MacRetro rider
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Joined: Thu Jul 30, 2009 4:56 pm
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Location: A Fifer furth o' the Kingdom
kaiser, you are correct, bottom pull top swing, that is the type that is fitted to Rob's Marin frame in pic in earlier post.

velo, I think, from what I've read, Shimano make all their new mechs 34.9mm and supply shims for smaller seat-tube diameters.

It wasn't until I tried to fit mech that I realised how little room there is to fit one. Another one to put in my stash, luckily it didn't cost much.


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PostPosted: Mon Jun 20, 2011 8:01 pm 
Gold Trader / MacRetro rider
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Joined: Fri Jan 30, 2009 10:04 pm
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Location: scotland
i might have a m570 lx mech ocp :wink:


"runs out to check"


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PostPosted: Mon Jun 20, 2011 8:20 pm 
Gold Trader / MacRetro rider
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Joined: Sun Apr 02, 2006 1:03 pm
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Location: Returning
today i tackled a job i was tasked with on saturday
a bit of pruning
hopefully this will stop the wowling about branches and such

trails tidied , job done :lol:


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