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PostPosted: Tue Sep 11, 2012 10:52 pm 
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I don't know where the idea came from, but at a certain point a few weeks ago, I decided to try 700c wheels on my Stumpy.
Last year I bought a cheap nineties CyclePro racer with an Exage Motion groupset. The frame was too big and got sold on, leaving me a collection of parts gathering dust. Perfect!

I was originally thinking of keeping the Maguras and googled a solution for the larger diameter rims. Seems like the only way to do this is to buy an adaptor offered by a couple of companies. Two hitches; they're not cheap, and they look kinda clumsy. I want a minimalist build. But during my search I found someone that had used road calipers for running 700c on an mtb. So simple it didn't even cross my mind... :oops:

So after a quick mock-up to check that it was possible, I took the drill to my Stumpy frame. Also the rear of the ready-drilled P2s was widened to accommodate the long collar found on road calipers. The pads were a bit high due to the long P2s, so I filed down the slots that the pads screw into, so they didn't touch the tyre.

The rear axel needed changing from 126mm to 135mm. A trashed XT hub produced a suitable axel and spacers. The wheel needed re-dishing (is that right?) to centre it.

Amazingly everything fit together with little trouble. It's fully built now and waiting for it's first outing tomorrow :D Pics to follow...


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Last edited by beepbeep on Tue Sep 11, 2012 11:02 pm, edited 3 times in total.
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PostPosted: Tue Sep 11, 2012 10:53 pm 
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A quick photoshoot on the way to work!

Felt a bit long-legged to start with, but after the initial strangeness it ended up being simple, smooth, fast and fun.
Even my quick-fix gearing worked a treat. The original wheels had a 6-speed screw-on cassette which I kept. The spacing is wider than 7/8-speed, so an STI unit was out of the question. Instead I found an old left side thumbie at the bottom of my parts bin – turned it back-to-front and mounted it on the right side.

Really liking the look. Reminds me of the BMX racers you get for younger kids.

(Needs a longer chain though! :wink: )


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PostPosted: Wed Sep 12, 2012 9:59 am 
Dirt Disciple
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Joined: Mon Sep 10, 2012 9:34 am
Posts: 44
Location: Nottingham
That frame makes me feel funny in my swimsuit area. Not sure I like the current incarnation as much as the last but it's a thing of beauty, no doubt.


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PostPosted: Wed Sep 12, 2012 10:17 am 
Gold Trader / PoTM Winner
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Joined: Mon Aug 08, 2011 2:35 pm
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Love it... bikes that evolve with the rider, and for different uses are top of my list....

Genious use of the road calipers... will remember that one :wink:



G


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PostPosted: Wed Sep 12, 2012 2:05 pm 
retrobike rider / Gold Trader
retrobike rider / Gold Trader
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Joined: Mon Jun 07, 2010 4:00 pm
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Location: Hunting down the "foxes" of lincolnshire
Loving it.

It's an optical illusion bike...

you keep looking at the frame then the wheels then the frame then the wheels....

<not serious on> Paint the frame in wood-tone (or 'wrap it') to complete the "Designed by Robert Stephenson" effect. <not serious off>

Cool as a penguin sauna :lol:

And 8)


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PostPosted: Wed Sep 12, 2012 5:19 pm 
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Location: London
That looks completely chuckable, impressed!


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PostPosted: Wed Sep 12, 2012 7:47 pm 
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Thanks for the kind words gents! :D

Although I'm a sucker for Azonic bars I think I'm gonna swap them for something a bit narrower, something just doesn't feel right with them now.

Really digging the thumb shifter too, can't remember last time I used these! Now I understand the devotion some people have to them.


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PostPosted: Thu Sep 13, 2012 10:50 pm 
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Joined: Sun Sep 05, 2010 1:10 am
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Location: Heathfield, East Sussex
Hmmmmmmmmm...

...got me thinking now about my original '97 Lava Dome that's still knocking around; have some spare 700C wheels and road brakes too :?


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PostPosted: Fri Sep 14, 2012 2:28 pm 
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Joined: Wed Jul 27, 2011 12:46 pm
Posts: 962
Location: Montpellier, France
Love this! 8)

I'm doing something similar to an old Scott - 700C wheels but with MAFAC Racer centre-pulls, and it will have a Campagnolo triple groupset and drops once it's finished. This is it in its current form:

Image


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PostPosted: Fri Sep 14, 2012 4:45 pm 
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@ We_are_Stevo: Do it! :wink:

@ Rich34: Looking good! Post it up when you're finished. Wondering about drops for the Stumpy too.


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