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Post by cusqueno on Aug 31, 2016 19:19:59 GMT
Fillet brazed Viscounts and Lamberts come with a variety of ways of dealing with routeing the gear cables past the bottom bracket. Some use a double clamp on guide. Others have two guides brazed on to the top of the bb shell. There were presumably reasons for this, to do with model and date of production, but it seems pretty random to me. The frame I am building up with black Dura Ace bits has a third variant - a brazed on guide on the right and a brazed on stop on the left. A short length of cable outer must have connected with a stop on the front derailleur (the bike came as a single speed, so didn't have an FD). Trouble is, the DA FD doesn't have a built-in stop. So, how do I route the cable? I could fit an extra clamp-on stop below the FD, but a bit untidy. Or I could route the cable under the bb shell somehow. Or I could cut off one or both of the braze ons and use a clamp-on guide. The photo shows the offending bits. What would forum members advise?  |
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Post by oldroadietehachapi on Sept 1, 2016 3:10:25 GMT
That is why I used a Shimano Deerhead on my build.
If a Viscount came with a DA front derailleur, what did they do? If so, I would match it. If not, I would consider cutting off both the cable guides and use a nice clamp on guide.
Good Luck
Jim
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Post by velocipete on Sept 1, 2016 6:44:55 GMT
If the frame is to be painted,cut off the cable stop and braze a guide to the bottom bracket shell.
If not,I'd just use a nice cable stop clamp on the seat tube. Probably the cheapest and easiest solution.
Cheers,
Pete.
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robt
Viscount
Posts: 558 
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Post by robt on Sept 1, 2016 8:21:48 GMT
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Post by cusqueno on Sept 1, 2016 10:24:28 GMT
Thanks for the suggestions. Very helpful. It looks as though the two known SupaBikes in captivity - Utedeej's here and Sooper8's here and here - both have band-on double guides, as does a Sport I have, which came with a Titlist FD, but I changed it for a Dura Ace one (with no problems). So ultimately a double band on might be the way to go. Time to get the Dremel out? Incidentally, the guide on the Sport looks exactly like this one, on eBay UK for £27.50 (gulp). I don't know how the seller has identified it as a Dura Ace item - it doesn't say so on it. But perhaps a transplant to my DA bike would be in order? |
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robt
Viscount
Posts: 558
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Post by robt on Sept 1, 2016 14:49:13 GMT
John, sometimes you have to smile. The Blue GS I recently transferred to my brother has one of those Shimano band-on cable guides, as currently offered on eBay for £27.50. I paid £25.00 for the whole bike, and the seller threw in the work stand and a toolbox full of bits, including 36 stainless steel spokes to rebuild the front wheel. I guess I was lucky that day. Seriously, for £7.99 plus £1.50 p&p, the 28.6mm Origin8 Clamp-On Single Frame Cable Stop, fitted just below the FD on the seat tube as pictured below (to operate a Suntour Cyclone triple FD) will do exactly what you want without needing to remove any of the frame's original fittings. If it still looks too cluttered for you after you've used it for a while, then you can try the more invasive/expensive options.  IMG_5667 by RMT@261, on Flickr I can also recommend their Thorn multi-tool, reduced from £19.99 to £5.99. It adds another £1 to the postage costs for the band-on clamp, but I have found the chain tool on it to be very effective on 5- or 8-speed chains. While you're shopping, also check out their useful range of 27" tyres. |
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Post by stevevw on Sept 29, 2016 11:01:35 GMT
John I had the same problem, all I did was use an old stainless rear mech cable outer and routed it from the stop round the bottom bracket leaving the changer end free to move and about 2" from the changer. Not had a problem with it at all. You can see it on Sunday.
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