Hi i think that the Echo ones are stronger, as my front one is really good and is still very true with no flats in it and it has took some abuse from wheel swaps,taps and front wheel gaps, i've had two rear try-all rims and they have both been rubbish, the first one cracked all the way around each spoke and had a couple of flat spots in, my second rim had a flat spot and a dent on the join after two weeks witch is pretty rubbish, and they hold grinds really bad so the echo ones can only be better than the try-all hope i helped trialsbikenut