Im not that up on tubing, but 853s pretty topend and so prolly quite thin right?
If this is the case get it done properly.
Otherwise I'd still have a look at the clamp area and if its that thats been skwished rather than the whole hole (if you see what I mean) you could try and prize it open a bit.
Im not that up on tubing, but 853s pretty topend and so prolly quite thin right?
If this is the case get it done properly.
Otherwise I'd still have a look at the clamp area and if its that thats been skwished rather than the whole hole (if you see what I mean) you could try and prize it open a bit.