I'm looking at purchasing a used (but VERY high-end.about $2k used) mountain bikeThe person selling it has indicated that there is a quot;small dent on the downtube, where a rock kicked up and hit itquot;He also states it's quot;very small and very shallowquot; The question is, if it is just a very small ding, could this be a problem? Aluminum is very brittle and has almost zero fatigue strengthAlso, I'm about 240 pounds and concerned about aluminum even without dings Anything to even be concerned about??
Use paddle wheels (driven by electric motor) both front and backMake the wheels so they will climb onto and over the obstructionOr Google for pictures of unusual early boats - I'll bet there's one that could do thisJust steal that design.
There was a ship I learned about in history, used to clear logjams from the red river to make it navigableThis was before the civil war for sureI remember pictures it looked like it had grasshopper-like legs somehow attached to the stern wheel, one on each side, supposed to push it over solid objectsTry researching Captain Henry Miller Shreve.
Hey Robert, In my opinion If you are going to spend about 2 grand on a used Alloy frame it better not have any dings or dents on it! For your piece of mind and safety you pretty much answered your own question, I'm about 240 pounds and concerned about aluminum even without dings I would pass on this frame and find a used one with out any dings or dents Even though a small dent is not a biggie, I think one on the down tube would be of concern for me, especially if you weight 240 lbsJust my opinion of courseGood luckKimber
