I don't recall ANYONE saying that the LEDs won't/don't hold up. It's INCREDIBLY hard to make a set of out of frames live, particularly on a hill bike, which is where most of those pipes are at! I have held, tinked, knocked, squished, etc. a few sets of LEDs and they are built much more stout than a couple others I have fucked with. I would think that with in frames they would be as good, or better than nearly any pipe on the market. I'd like to see where someone has indicated they are not well built.