I just bought a Specialized Stumpjumper with a dent in the down tube (cheap). The bike's in really good
nick, hardly a scratch etc. but for this said dent. Now my question to you is: How sensitive to deformities are aluminium frames? I know that they are prone to fatigue and they flex a lot less than CroMo but would dents like these actually harm the frame to the extent that it risks snapping/breaking? I'd be very grateful for any input you might have!