I know this is quite a long shot, but bike got hit by a rolling boulder today... leaving a big beastly dent in the downtube of the frame. Not good. Anyway to remove/repair this? Pics in a bit.

Edited June 12, 201016 yr by shercoman2k8

Oh crap!

No photo's yet but the most permanent and structurally sound repair would be bike strip - weld fill - smooth / shape and re powdercoat.

Maybe drill a hole in the oposite side and knock the dent back with a suitable punch. Close the hole up with weld.

filler sounds the easy option to me!

I tought incidents like this led to the invention of stickers ?

I'm guessing it's a structural problem rather than cosmetic, otherwise you would have gone for the sticker 'fix' ala Baldilocks.

Do you have garage near you that repairs classic cars?..not..a modern body shop where they just swap over panels.

The reason I'm asking, is that I've seen a metal spray demo for building up the surface of ferrous alloys and it worked a treat.

Something like this

Use a slide hammer to get the worst of it out then use filler for cosmetic looks.

If it is really bad you may want to cut a length out and weld in a pup-piece.

Use TIG welding and have it done by an experienced welder.

Kevo