Join Date: Jul 2009
Location: Ann Arbor, Michigan
Bikes: '93 GT Pantera, '03 Fuji Marseille, '05 Klein Attitude, Dahon Impulse, Bike Friday Family Triple
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This pic is useless without pics...
You're describing buckling of the tubes caused by the crash. Aluminum is very unforgiving with fatigue compared with steel or Ti. It can simply snap when bent too much.
It's better that the dimples are on the bottom of the tube rather than the top. If they were on the top, I'd guess the frame is going to go very soon. On the bottom it's from the original crash, and you probably didn't notice.
It's not like it's going to assplode into a million pieces, but it's hard to say how much warning it will give when it goes. It might never go. Could be that you hear a crack and the down tube splits halfway. Could be you hear a crack and both tubes split almost instantly. Aluminum is funny that way. The high strength alloys don't like to bend.
Last edited by twentysixtwo; 09-06-09 at 08:51 PM.