Acctually I just checked out that mongoose bike and it seems to be a very good bike as well. It has a cassette hub which is an advantage over the 6 pack, but only the steerer tube and dropouts are cromo on the fork. The frame is 100% cromo just like the 6 pack and the parts package is about the same. So basically it comes down to if you want a cassette hub or a 100% cromo fork.