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Ultimate Hybrid
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Posted by: Baxter

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

Posted by: slow

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

A 400ex with a ktm 450 motor

Posted by: 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.

Posted by: frank mb

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

Posted by: 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...

Posted by: nightmare311

i found a pic of a 520 ktm 400ex hybrid

Posted by: 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 ?

Posted by: 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.

Posted by: nightmare311

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

Posted by: 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 Ł500 more than a secondhand 400ex plus I have lots of 450r spare parts.

Posted by: 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.

Posted by: Baxter

I am trying to decide wether a CRF490 or KTM520 into 450R chassis.Thought about trx535 kit but would cost Ł3500 in parts.

Posted by: nightmare311

ktm520...

Posted by: Baxter

SX or EXC

Posted by: nightmare311

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

Posted by: Baxter

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

Posted by: nightmare311

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

myspace.com/311nightmare

Posted by: MX450

Laeger or Walsh 250R gemometry CRF

Posted by: atvracer9m

walsh/axis yz450f 250r geo

Posted by: Ruby Soho

Tecate 4 engine in a 450 chassis

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

Posted by: Kansas400ex

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

Posted by: HouserCRF450

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

Posted by: KingpinsEx

quote:
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....

Posted by: Yamahauler_04

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

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

Posted by: TANNER250r

250r/cr500 would be fun to make

Posted by: 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.

Posted by: Yamahauler_04

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

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.