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OSCA ~ Polish Columbus Air Track Lo Pro ~ Juna Kevlar track disc
Posted by
@haveo
Posted by
@haveo
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Hello,
I'm selling my OSCA.
Detailed pics
Lovely, crazy pursuit frame from Poland. Comes with original fork. Measures 60x60 but because of the geo, effective tt length is about 55cm. Comes with columbus air seatpost, Miche bb and dura ace 7400 headset. Italian threads. Rizla tight clearances on rear and fork (fork barely clears 23's, rear touches seat tube on 23's when fully inserted)
As you can see the frame is very ratty. Here are some of the things worth mentioning. None of them make the frame unuseable but are worth mentioning.
The seat cluster is the roughest part of the OSCA. From the looks of it, it appears to have been heated up probably to remove a stuck seatpost. From the pictures you can see welding marks on both sides, I don't know why they are there, however you can see on the Bio bike and other air frames that they have holes in that position, again I don't now why.
There are also similar welding marks in that position near the bottom of the seatpost. When got the frame I had to sand it down so it would fit in the frame. Because you aren't able to twist the post when you insert and remove like a normal seatpost, it requires a bit of force to get it to budge.
One last point, the left side rear dropout is a bit of a pain to fit a wheel into. It appears to narrow slightly meaning it takes a fair bit of force to get the wheel to fit straight. You probably just need to take a file to it and take some of the material away and it'll be fine.
The OSCA is currently fitted with a DA 7400 headset. The crown race on it though wasn't snug on the fork so does rattle a bit when riding but I've had no issues riding it like that. A coke can shiv would fix that I believe.
I'm looking for £350 which gets you frame, fork, headset, seatpost and bb.
Collection from N4 London but can maybe meet more centrally. Not really looking to post.
//
I also bought this (probably) Juna kevlar track disc to ride with it which I no longer need. Suits the frame well. Comes with new amber wall Vittoria Rally tub. Still has 2/3rds of the stubborn old glue on which needs removing. It is extremely light. I don't have lock nuts for it. Threading on both sides but no lockring thread, possibly room for a bb lockring on one of the sides. Cogs not included.
Looking for £140 with tyre