Ive heard that the z400 frame is weak and if u jummmp it might crack or if u crash.........they were saying it much weaker tahn a 400ex frame ......i was wondering if the z400 frame is stronger than lets say awarrio frame like when jumping and if u crash will it tweak easy?

 

couldnt really tell ya on that one. But i would think the Ex might be a stronger frame but the KFX is really good for jumping and people who do jump them have had no complaints of tweaking anything!

 

sounds liek i will b owning 1 soon