Ultimate Hybrid

[Baxter]

What would be the ultimate hybrid for motocross ?
All suggestions please.:devil:

Originally posted by Baxter
What would be the ultimate hybrid for motocross ?
All suggestions please.:devil:


A 400ex with a ktm 450 motor

[gtilley45]

If you aren't worried about having to run the open classes, I'd say a Walsh/KTM 520. There's some pics of one around here somewhere but I can't find it.

[frank mb]

Walsh with ktm 560 SMR engine with a 630 engine kit on it.

[nightmare311]

i got a 400ex/ktm450 hybrid this thing hauls... i can smoke the trx's,ltr's,and yfz's down the straights.... no problem.... its just weird jumping 60 to 70' in 2nd...

[nightmare311]

i found a pic of a 520 ktm 400ex hybrid

[Baxter]

Who did the frame conversion on the 400ex/ktm520 and did it take alot of work?
Is 250r best geomentry to go for in motocross or is the 400ex similar ?

[gtilley45]

The 400EX and 250R are similar. But personally, I think the 250R has better geometry but at the same time I think it's a little harder got get a motor like that in it. Unless you have the money to buy an aftermarket 250R frame made for the motor you want to use.

[nightmare311]

the 400ex frames are bigger there for a little easier to install the hybrid motors...

[Baxter]

Does anyone do a chassis so you can fit trx450r parts on.
The reason I ask is a secondhand trx450r will only cost about £500 more than a secondhand 400ex plus I have lots of 450r spare parts.

[gtilley45]

The only TRX450R parts I've seen used on hybrids is the spindles, hubs, rotors, calipers and front master cylinder. As soon as I get the money, I'm gonna go with this setup on my 250R hybrid. The 450R spindles are supposed to be a good bit stronger as well as being lighter.

[Baxter]

I am trying to decide wether a CRF490 or KTM520 into 450R chassis.Thought about trx535 kit but would cost £3500 in parts.

[nightmare311]

ktm520...

[Baxter]

SX or EXC

[nightmare311]

well how many gears do u want sx has 4 exc has 6 i havent got my 450 above 3rd..

[Baxter]

4 I think would be enough.Just put bid on 06 frame to start project .Thanks nightmare311.:devil:

[nightmare311]

well if i can help anymore let me know or hit me up on myspace..

myspace.com/311nightmare

[MX450]

Laeger or Walsh 250R gemometry CRF

[Ripitupfilms]

walsh/axis yz450f 250r geo

[Ruby Soho]

Tecate 4 engine in a 450 chassis:D

haha, i doubt that would work, and it would be hard to find parts for the engine

[Kansas400ex]

so where do you find the KTM 520, or other dirtbike engines for sale without buying a whole dirtbike?

[HouserCRF450]

laeger pro trax cr500 link, pep ti piggybacks, crf motor with falicon 530 kit :muscle:

[KingpinsEx]

Originally posted by Kansas400ex
so where do you find the KTM 520, or other dirtbike engines for sale without buying a whole dirtbike?

Ebay or atv/dirtbike salvage places....

[Yamahauler_04]

Originally posted by Ruby Soho
Tecate 4 engine in a 450 chassis:D

haha, i doubt that would work, and it would be hard to find parts for the engine

Not as much as a XR650 in a Blaster frame :)

[TANNER250r]

250r/cr500 would be fun to make:devil:

[cbr]

i seen a 250r with a cr 500 motor in it, and it was bad arse! he was a trail rider but he put like 20g in it.

[Yamahauler_04]

Originally posted by TANNER250r
250r/cr500 would be fun to make:devil:

And then sell.

Rode one. The motor vibrates so bad your hands go numb in 15 minutes.

It also loved to vibrate until welds craked.

But it was fast.