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PostPosted: Fri Mar 15, 2013 2:48 pm 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8222
Location: New Forest, UK
LOL, me too! I run a 90mm stem on an old 1990 Marin with drops - but these are shallow drop 3T Forma Randonneur.
With bigger drops I needed a stump-neck stem.

It depends hugely on top tube length. Probably the happiest conversions are on lower-end frame which tend to be a bit shorter. From that point of view a modern frame could be better, if it weren't for the thing having no brake bosses and expecting a long-travel fork.


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PostPosted: Fri Mar 15, 2013 2:53 pm 
Retro Guru
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Joined: Thu Aug 14, 2008 1:47 pm
Posts: 1742
Location: South Somerset
Have you any pictures yet Neil?


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PostPosted: Fri Mar 15, 2013 3:24 pm 
retrobike rider
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Joined: Sun Feb 19, 2012 10:08 am
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Location: Nth Somerset, UK
player wrote:
Have you any pictures yet Neil?


All in good time :wink:

I only got the bars and stem yesterday and fitted them yesterday evening.

I am about to tackle to issue of the front mech, as I have found a road crank will not work with my frame, so I have gone for a triple mtb crank, with the granny ring removed.

So, the issue is chain line, or in simple terms, will a road front mech reach both chain rings? Or do I have to spend (more) money on an mtb front mech? :roll:


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PostPosted: Fri Mar 15, 2013 3:48 pm 
Gold Trader
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Joined: Wed Apr 25, 2012 10:36 am
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Location: High on a hill above the Somerset Levels...
NeilM wrote:
player wrote:
Have you any pictures yet Neil?


All in good time :wink:

I only got the bars and stem yesterday and fitted them yesterday evening.

I am about to tackle to issue of the front mech, as I have found a road crank will not work with my frame, so I have gone for a triple mtb crank, with the granny ring removed.

So, the issue is chain line, or in simple terms, will a road front mech reach both chain rings? Or do I have to spend (more) money on an mtb front mech? :roll:


Neil, I got quite a few cheapy FD's if you want to try one and see if it works, I can let you have one for nothing if there's one that fits...

Rich, Whilst I found loads of interesting pics that made me laff, can't find one anywhere of the Raleigh RTB, sorry, but I will keep looking through the Cycling Plus mags...


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PostPosted: Fri Mar 15, 2013 3:56 pm 
retrobike rider
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Location: Nth Somerset, UK
LikeClockwork wrote:
[
Neil, I got quite a few cheapy FD's if you want to try one and see if it works, I can let you have one for nothing if there's one that fits...

Rich, Whilst I found loads of interesting pics that made me laff, can't find one anywhere of the Raleigh RTB, sorry, but I will keep looking through the Cycling Plus mags...


Thanks for the offer, I'll let you know.

I am keeping my fingers crossed that if I hit it with a big enough hammer... erm, if I engineer the solution correctly, I should be able to get it to work.

I know I can get a SRAM X9 mech to work on a 2 x 10 setup with a 28.6mm seat tube, as I have done two of these already. The question is whether I can get a SRAM Rival mech to reach all the way out to the big ring. Theoretically it should work, but as we all know, theory is one thing, practice is a different animal all together.


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PostPosted: Fri Mar 15, 2013 4:00 pm 
Gold Trader
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Location: High on a hill above the Somerset Levels...
:facepalm:

This is what we used to call the 'Heath Robinson approach to cycle mechanics' when I worked in a shop. Just had to hope the customer didn't walk in as you were wielding the aforementioned big hammer.... :lol:


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PostPosted: Fri Mar 15, 2013 4:06 pm 
retrobike rider
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Location: Nth Somerset, UK
Also known a 'forming', or to the layman bending! :wink:


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