Weak points on 400EX frame?

[Punkmaster Flex]

Hi,

I just found a crazy deal on a 400EX LT front end so I bought it in a hearthbeat. I didnt plan to do a lot of track with my quad but now that I got an appropriate setup for it I'm thinking to start a bit.

Where are the weak points on a 400EX frame? Is it really needed to reinforce the frame for track? Considering I wont race, just go out on weekend and take it easy... :confused:

Thanks!

[matt14c]

Here I circled the main spots that I know of. There may be others but I have had three broken frames and these are the only spots I know of. If you get a gusset kit from either Lonestar or a Bare performance they cover all the high strees areas. Pappy hope you dont mind I borrowed your photo.

[sab24711]

the worst is at the foot peg mounts you should weld 1/4 plate of metal all around