450 vs. 505

[One_Bad_400]

just curious on how much more power the 505 has then the 450? stock vs. stock?!? is it worth it?

[Quadevil]

about 2-3 horses and a little bit more torque, according to the dyno's i saw.

[ltr311]

Im guessing more around 1-1.5whp if that.

Same exact motor
One is 450cc
One is 477cc. That big of a jump in displacement is unually good for around 1whp 1ftlb.

My opinion is this. If you need a 450 to run the class you wanna race, get it. If that doesnt matter spend the extra 300 for the faster machine.

[mxraptor149]

I got a chance to ride both these machines at one of the KTM Ride Experience events at Crow Canyon on the big mx track.

The 450 power hits pretty hard on the top end once you get around 9,K rpms. It keeps revving and doesn't seem to lose power on the top, which translated into an ideal ride for hitting the big jumps out of the tight corners at Crow, and not to mention that's good for pulling holeshots.

The 505 is a lot smoother and definitely has more low-end power. The 450 might wear you out faster (if you're not prepared) and the 450 seems a little better suited for extremely technical tracks.

[KTM120]

at least you got to ride both... i paid the 20 bucks to find out that u could only ride the 505 on sunday because the 450 was blown up on sat.... but the 505 sure does rip!!!!!

[k4f5x0r]

^^so much for reliable

[andrew450r]

it said in atv sprot that they both have the same peak horse power. the only differnece is wen the power comes.

[Quadevil]

Originally posted by andrew450r
it said in atv sprot that they both have the same peak horse power. the only differnece is wen the power comes.

Nope, it's clearly the opposite.
The 450SX and 505SX have almost equal power curves but the 505 has 3-4 more peak hp.

[ltr311]

Originally posted by Quadevil
Nope, it's clearly the opposite.
The 450SX and 505SX have almost equal power curves but the 505 has 3-4 more peak hp.

My guess is there will only be about 1.5whp difference between the two. Ill be doing some comparisons before the end of the months. Brad is buying a 450 and we will compare it against my 505.

My sx bone stock with silencer out did 50.5whp 37ftlbs. I bet the 450 will do 49whp. We will see.

[bbrad mulvey]

Ya, it will be VERY interesting to see how this all plays out We should have 450vs 505 by the end of Feb at the latest.