Strongest stock frame?

[stocktires]

Anyone know what stock frame is the strongest? Seems lik the 450r is unproven and I've been out of the racing scene for a few months. Last I heard the Z400 frame cracks to pieces, No clue about 450f's. And 400ex's have always been decent.
I'm wanting to build a mx play bike and would rather not get an aftermarket frame.

[Florida400EX]

I cased it on a 60 footer, not too bad, but if I was on a Z, the frame would definetly be toast. My ex frame was still all straight, but the airbox broke...

[quader400]

yea the ex frame is pretty stron ive taken some hard hits to it and its still straight. oh yea and i guess i forgot but i cracked my ex frame but if they are gusseted they will hold up just fine.

[KYmxracer52]

CANNONDALE

[daimon1054]

No more C-dale:huh So gotta go with ATK:devil:
Other than the ATK / C-dale frame every stock frame needs some beefing up for racing.

[batgeek]

the 2 people above me hit it right on the dot :D

[TC426EX]

The 400ex frame is decent but STILL needs to be gusseted for MX. After a year of racing the frame cracked all the way through above the top shock mounts. Also, the top motor mounts that bolt through the valve cover broke completely off. I took the frame down and had it gusseted up hardcore and havent had any problems with it whatsoever. Not really sure what the BEST frame is, but I can tell you what the WORST is.....Z400 all the way. I have 3 friends with Z/KFX's (well, most sold them now), and they cracked 8 frames between 3 of them no ****....

[cletusEX]

The 400ex's will take a beating but still can be bent or cracked. I bent my frame on my 02 ex and never really wrecked hard or hit anything major. I hit my share of trees racing xc. I guess the little stuff added up.

[bradley300]

the c-dale/ATK is by far the strongest frame, prolly the fastest motor of the 450's also

[stocktires]

Not really into going with a Cannondale. I love them, but no, can't take that kind of chance. I do agree they have the strongest frame though. probably stronger than a couple aftermarket frames I know of...

i hit a fence with my 450r doing like 45mph & the frame is fine but some other sheot is messed up though..i think maybe my upoper aarm & some other stuff? it skilling me not being able to figure it out

http://www.imagestation.com/picture/sraid129/p739509131f4b2fa8e48e4e4b097a3e36/f7cca496.jpg http://www.imagestation.com/picture/sraid129/p7af322a74a359575a6cd43acc39df778/f7cca49c.jpg

http://www.imagestation.com/picture/sraid129/pa5f5a4ab1c7105788aec9c3727f45e8d/f7cca4a1.jpg

[ZRider400]

Originally posted by MixMasterMike
i hit a fence with my 450r doing like 45mph & the frame is fine but some other sheot is messed up though..i think maybe my upoper aarm & some other stuff? it skilling me not being able to figure it out

http://www.imagestation.com/picture/sraid129/p739509131f4b2fa8e48e4e4b097a3e36/f7cca496.jpg http://www.imagestation.com/picture/sraid129/p7af322a74a359575a6cd43acc39df778/f7cca49c.jpg

http://www.imagestation.com/picture/sraid129/pa5f5a4ab1c7105788aec9c3727f45e8d/f7cca4a1.jpg

its your spindle.... the a-arms/frame look fine.

[boogiechile]

any stock frame you use for mx needs gusseting and it should be ok. Even the Z/kfx 400 frames do alright after gusseting.

[Pappy]

Originally posted by boogiechile
any stock frame you use for mx needs gusseting and it should be ok. Even the Z/kfx 400 frames do alright after gusseting.


that there is your answer:D

even tho gusseted, they will eventually crack, but then again so will an aftermarket frame.


stocktires, if you sell that R of yours im coming to your house and sticking my boot in your ***. you will regret it forever :mad:

[ex kid]

a friend of mine cracked his stock 450R frame and broke the subframe off. another friend has an 02' Cdale that has been raced off and on since 02' in the A class and that frame is still holding up. when you put a fast rider on a steel production frame it's going to break eventually.

[stocktires]

Originally posted by Pappy
that there is your answer:D

even tho gusseted, they will eventually crack, but then again so will an aftermarket frame.


stocktires, if you sell that R of yours im coming to your house and sticking my boot in your ***. you will regret it forever :mad:


I know paps, It's the last thing I want to do. If I didn't need money so bad I wouldn't even think of selling it.