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sry for the gigantic photo...
The bike cult link didnt come up on the first post:
http://www.bikecult.com/works/archive/03bicycles/takhionVVVV.html -
sorry, I hope the moderators cleaned up
http://forum.fixedgearmoscow.ru/index.php?showforum=5 -
Well I have I think two of those old russian bikes. But those are turist frames . These records and sports should be better than turists but still all of them are made of shitty steel. Russian frames rust quickly. Good thing is that they are beautiful and old :). Perfect to cycle anywhere- in the woods, throught the sand, throught the mud. Like a tank :D
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Anyone tried to change the headset (and fork) on these?
False brinelling means I'm going to need a new headset pretty soon. I remember when I changed the forks over that, as well as the odd threading, the new headset races wouldn't fit the headtube, so I carried on using the old headtube races along with the rest of the new headset (perhaps the source of my brinelling).
I very much doubt I'll ever find a matching headset; Sheldon only lists a few oversized cups and none seem to match (though I have no calipers here). Maybe I should just shim it, it's only a beater after all.
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Russian headsets/headtubes have a universe of their own, hence why the frames are not more popular an sought after. People start to be aware of this...well, some.
Solution: get a new set of forks/headset and get on with it.
it's next to impossible to source parts from Russia (AFAIK) and even if you could it would prove too obsolete
to even consider installing it...About the races, if it is loose on the steerer you can get 'liquid metal' in a tube.
You mix it, apply it, it dries out and becomes 'metal'. You can then ream it at size.
I have seen it work. -
well, what works with old soviet frames is to replace both the headset and fork with any modern one (JIS or ISO cups diameter - doesn't matter). what you have to prepared for is the fact the modern headset cups are loose in the headtube. this is easily addressed via shimming, and i have seen it work ;) many times. hope this helps.
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cycberdyne systems model T-1000?
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this is easily addressed via shimming
How much is the difference?
Is it is just a few 0.1mm, you can try to hit the outside of the cup with a centre punch (whole circumference).
Bits of material will be forced outwards, giving just enough grip inside the too big head tube.
This method is more common for a fork crown (26.4mm) that is too small for a crown race (27mm) but it works for a cup in a head tube as well. -
I would say there is almost a millimetre or more if I can remember correctly.
I replaced mine with a standard 1" headset and carbon fork.
I had to use tinplate and wrap it around the headset then hammer it into headtube. It was tricky, its a dirty hack but it fits tight.There was a discussion about this here :
http://www.lfgss.com/thread49070.htmlIn post #35 http://www.lfgss.com/thread49070.html
There is a mention of oversized Chris King cups. Did not think it was worth it for its purpose.I have used it all winter for commuting, Rode it into a side of a car at reasonably fast speed which resulted in a buckled front wheel and bent handlebars. Fork and frame were fine.
However I am now thinking of taking it down to the track and a bit worried as there will be more force applied to the bars constantly which could pull the cups out.
What do you think the worst outcome could be? The cups come out and your fork is loose inside the headtube, the bike jerks and you lose control flying over the bars? :) -
Did the same with mine, couple of wraps of coke can and it seems tight, perhaps not as tight as the original cups but hopefully enough to hold.
I guess the worst outcome is the cups simply turn within the headtube itself, maybe a bit of wobbling occurs. It should remain reasonably tightly held together thanks to the adjustable race and locknut.
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This is mine...
My LBS (Perry Cycles, Woolwich) recut the bottom bracket (was all over the place) and made up the headset from parts he had lying around - to fit the 1" forks - all for £20.
He wasn't keen to shim the headtube, but an old Pug frame I had, was shimmed like that (with a coke can) and worked OK.
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About
Russian XB3 frame and forks
Posted by
@olliebopsa
TAkhion track bikes are really cool.
bikecult's got a really cool article of takhion track bikes which were eventually banned because of their unorthodox handlebars.
I own an old very rusty xb3 roadbike. my ones from finland. Cheap and heavy. ollie, your probably missing a badge or whatever plate its called on the headtube which looks something like this: