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Should have stuck with my original gut feeling that I needed a 108 - I even have the Phil cups ready to go. You're spot on Kifla about the dodgy measurements I'm doing, thanks!
Based on ^ ^ ^ I came up with a new method for peace of mind. Now, I measure from centre line of chainring direct to edge of seat tube. Then measuring (or knowing) the diameter of the seat tube I can use a bit of (old) school maths and figure out the radius. Doing that, with the cranks tightened on the 102mm BB, it looks like I need to move the cranks out about 3mm…paging marxist_vulcan and your 108mm Phil!
"measure twice, cut once"
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Do you want a longer Phil BB :-)?
touché!vigilant Kifla - I am indeed running a 102 Campy ISO BB and it would get a 42mm chain line spot on if it wasn't for the clashing. These old Mighty's are definitely ISO - have both JIS and ISO BB's at home and they sit correctly on them. I thought the 102 was short too but if it gets 42mm at the chainring it must be right, right? (you know, other than the gouging out bits of my chainstay…)
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Spot the deliberate mistake…
So I guess I can add cranks to the pedals and saddle hunt…Shame as I've been waiting to put those cranks to use for almost a year now. I figure it's just because they're old 151 BCD and the chain stays on the Vitus are pretty chunky. On the bright side, the chain line would have been spot on
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Next project - aroseisaroseis's resurrected Vitus nearing readiness for its new life in London http://www.lfgss.com/thread122192.html
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Seconding OK123 on the contact points, black cambium and cotton tape would look great.
it is worth mentioning that they`re actually road pedals.
Black cambium would be the one…will see how things are looking once I finally get the new chainring, wheel finished and tyres on.
And thanks for the info on the Sprints. Would prefer track kit but it's not the end of the world (seeing as those are road rims really…).
Anyone have any other good pedal suggestions? Or offers?
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Had a feeling I'd see you on here Kal! This build should be fun, but there are definitely some unexpected quirks and decisions left...
Firstly, Vytas, great job restoring the frame! Sad to think it could have just wasted away in that store room in Lithuania. Hence the headtube decal to give a nod to its heritage. Plus it reminded me of this :-)
So frame, forks, seatpost (lovely shiny Campag aero) and cockpit (LA84 to Cinelli 1R stem) all came over from Vytas in Lithuania. Included some quite confusing conversations with Lithuanian couriers (thanks for your help again V!)
As for the rest of the build, I've had that 16 spoke 650c FIR Super Rialto laced to Dura Ace hub for ages now and figured it was time to dust it off. Is a beautiful wheel. But finding a matching rear has been cause for some headaches. I managed to track down either a 36h or 24h 700c rim (NOS). Would have preferred the 24h, but wanted to match the hub and I know Shimano can make a 24h low flange track rear hub but I can't seem to get one over here...so alas, I settled for an 36h NJS low flange DA rear ("settled for..."). To get some consistency to the front wheel which has huge bladed spokes on it, I opted for elliptical aero spokes (like Sapim CX-Ray) on the rear (the widest spokes you can get without slotting the hub).
Rim and hub measured, I ordered the spokes. They didn't fit. Minor annoyance. Rim re-measured and it dawned on me that I hadn't tightened the spoke nipple to where I wanted when I measured. Fail
Spokes re-ordered. Still not a good fit. Some seemed to fit, some were ridicilously loose. hmm. So I conjured a plan. With the longer spokes I had, I could use some upside-down internal spoke nipples (they finish internally anyway on these aero rims) and that would work fine. But finding internal spoke nipples in London has been the bain of my free time recently. Rejoice when I found some at Fitzrovia cycles over this weekend. Dismay when I was re-assembling the wheel yesterday and something still didn't fit. about half of the spokes met up with the nipple fine but some were just determined not to...Took until yesterday night to realise that all this time I had just mislaced the spokes and had the crossed spokes ending in adjacent holes rather than one apart...major annoyance! I should have just splashed out on a custom 24h rear and saved wasting money on expensive spare spokes and illusive spoke nipples! I still might go for the 24h in the future....
So that's the wheels, (although still not quite as I need some nipple washers...and I'm not sure it's ok to use that search term on the work computer...).
BB was going to be a Phil but due to another measurement problem I've resorted to a Campag Chorus I forgot I had in an old build.
Cranks are Sugino Mighty (proper) Pista, 165mm, 151BCD. They're definitely ISO despite the JIS stamp on the back (there's many a thread discussing them...)
Ring was going to be NOS Sugino Mighty 53t but it just clashes with the chainstay...so that's a new problem to resolve...
Pedals = ??? but with the double gates and straps pictured. Always wanted some proper straps like this. I have just made my own foot retention on my other bikes but these are much shinier. Anyone with suggestions on pedals? I really like a pair of basically NOS Suntour Superbe Sprints that Hilary Stone has at the moment. But they seem very overpriced...http://www.hilarystone.com/pedals.html
Saddle. I have such a (literal) soft spot for Brooks saddles. So comfortable. I used to ride a Concor and there was some disagreement between it and my rear...I quite like the Cambium too. Feel that might split some people on here but hell, it's my arse! I've also managed to track down some lovely continental GP3000 tyres with brown sidewalls and am thinking of doing another leather wrap on the handlebars as per all of my other bikes...If so, the Brooks actually fits in very nicely (cambium or swift). Watch this space I guess...
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but can't show you any more of it yet because I'm still missing a few parts. So, can anybody help with the following shopping list:
1/. Rear Dura Ace low flange 7710 track hub (36hole - or if they exist 24hole)
2/. Fir Super Rialto rim, 700c - know there have been a few kicking around on the forum from time to time so fingers crossed…
3/. Track pedals with double cages (something like MKS Sylvan or Genetic Pro Track would be about right) - already have straps…
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that's a lot of teeth! So Something between 48 - 50t, Sugino 151bcd would be preferred…let me know what the options are…Also, just picked up one from here but it might be a bit long in the tooth for me lil legs
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I have a set of old Sugino Mighty Pista Cranks which I was getting ready for a new build last night. Was planning on putting a 75 ring on there...but it now seems I should have measured the BCD before buying as it's 151 and my 75 is of course 144...
So does anyone have a 151 BCD Sugino Track Chainring (1/8) in good condition that they would like to sell? Have been offered one from California but would rather pick it up in London...
Ta! Zack
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The great thing about Phil BB's is you can adjust them by up to 5mm thanks to the seperate cups. Fitting an ISO taper on a JIS spindle will leave it about 4.5mm out of place which could balance the whole "75's on JIS" matter out