sadly to say, njs frames were built to be "disposable" after they were crashed, as the pro riders could definitely afford to keep changing a frame that was crashed/dented - the people that sell them (NJS blogspot) actually get them for little to no cost, especially the impacted/heavily dented ones which were destined to be thrown away anyways. just throwing that out there for those that didnt know.
the tubing is extremely thin and all njs framebuilders do not recommend riding them on the street.