I really need your opinion

[YZ125MXer]

Hi I am going to start racing but i need somthing faster then my current near stock 2004 YZ125. I cannot decide between selling both of my bikes and buying a 2007 RM-Z250 or selling one of my bikes (a 2007 Terra moto pro) and doing up the YZ. If i did up the YZ I would get an FMF Factory Fatty, FMF Titanium 2 silencer, V-Force 3 reed block, iCat ignition boost, a new piston kit and I would get the bike dyno tuned and get the jetting adjusted for the new parts.
So do you think a 2004 YZ125 with all those parts and tuning could easily keep up with a stock or close to stock 06/07 250F?
Thanks

[MX86]

well i take it your set on the lites class? IMO the 125 will keep up with the 250F's if your a good rider, also the matinence costs will be less with the 125 i the long run. personally the PC Works with the R304 shorty would be a better combo for the track.. more mid-top

[YZ125MXer]

Ok thanks for the advice man, I think i will go with the works pipe and R304 shorty I looked at em on the website and it said the R304 shorty was used by pretty much every PC rider on the podiums.

[RagunCajun]

It's the rider, not the bike that wins races. Just keep the 125 and get better at riding it. I hear that icat stuff is a joke too.

[YZ125MXer]

Yeah I dunno about the iCat got good reviews in some mags recently but i'll need to look into it. Can anyone think of any other aftermarket parts i could put on it?

[MX86]

this is what i run.

Showa suspension
Boyesen supercooler aftermarket water pump
Tag T2 privateer handlebar/triple tree kit.
PC Works/R304 shorty
Maxxis Starcross Intermediate tires
Excell rims
Wave rotors
Wiseco Pro-lite piston
and i have different gear ratios in the tranny
oh and fork compressors are a must

[butcher_boy]

It is now legal to use a 144 kit in racing. That's what I would suggest doing. From what I've read, It's the best thing you could do to a 125. www.eric-gorr.com

[MX86]

really? i didn't know they allowed the 144 kit? but i guess i don't pay much attention to the 125 class.. that would be the fist thing i would do if your district allows it....

[YZ125MXer]

Never mind guys the KTM dealership offered me a 2007 125SX for $7,500 australian dollars, for those of you who dont know i live down under. $7,500 is about $1,500 off the retail price down here.
Thanks for all your help though, I really appreciate it

[MX86]

right on. i thought they banned the 125sx cause it was too light?