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Yes, the cracking problem stems from the fact that Condor designed the frames with a straight-guage seat-tube, to save cost. As it's rather thin, mine has been reamed out to 30mm, and rather flexy, cracks develop where it meets the top-tube.
No it's not.
It's due to the fact that the seatpost inserts were cut too short and stop right at the join where the most stress is rather than a few inches below.
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As I couldn't be arsed paying Condor £415 for a new frame, I went down the following route.
Used a hacksaw blade to get the shim out. It's 60mm long, and glued in.
Removed the paint to see the extent of crack.
Then I drilled holes to stop the crack spreading. Used it like this for a while.
Decided to get it sorted/bodged properly, and took it to Ted James who brazed it up, and added a pseudo lug over the top of the joint.
Will see how long it lasts, but it's better than throwing the frame out, I guess.
Ok so I have a 2007 Ltd Ed Potenza which has the shit shim setup. I really don't want a crack so I was wondering what evasive action I could take. Could I saw out the shim now and just fit a wider seat post thus removing the problem? If so what size post would I need?
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Or could I cut out the shim and put in a longer shim?
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The internet tells me that the 2007 Potenza was made out of Dedacciai Zero Replica, so maybe the seat-tube is not as bad as the Dedacciai 14.5 one on the Pistas?
When I cut the shim out I cut through the tube slightly, near to the slot on the rear - the tubing is really thin - so if you do try and remove, be careful. And there was residue of glue in the tube, which would be best to remove by reaming. I used a longer shim for a while, I can't remember the size it was, but it was too thin so I bulked it up by putting insulation tape on it, till it became a good fit.
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The internet tells me that the 2007 Potenza was made out of Dedacciai Zero Replica, so maybe the seat-tube is not as bad as the Dedacciai 14.5 one on the Pistas?
When I cut the shim out I cut through the tube slightly, near to the slot on the rear - the tubing is really thin - so if you do try and remove, be careful. And there was residue of glue in the tube, which would be best to remove by reaming. I used a longer shim for a while, I can't remember the size it was, but it was too thin so I bulked it up by putting insulation tape on it, till it became a good fit.
Thanks for the info. Sadly I don't think the quality of the tubing is going to be too much of an issue. I was hoping that as it's a Potenza Ltd Ed. it would be less prone to cracking but the shim ends above the top tube so it's bound to crack at some point. I was hoping I could cut the shim, ream the tube then fit an OS post... I'm guessing Condor aren't going to be much help if it does crack, with a 2nd hand 5yr old+ bike thats been resprayed. I'm not a heavy rider, I love the bike though, I'd be gutted if it went. There's no Potenzas on ^that list tho...
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Seatpost clamp?
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it's wiv da angles now… 4 eva in ar shedz
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Cracked 2007 Condor Pista
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@hippy
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