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Author Topic: Four stroke options  (Read 70061 times)

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Offline Ken 737

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Four stroke options
« on: December 25, 2015, 09:12:58 pm »
Hi fellow VMXers,

I think my next vmx bike will be a four stroke. I.ve had a few XTs back in the day but can't imagine an XT or TT for vmx, as much as I love to see Rob Smith on his thumper. Probably can't find or afford a CCM, so what do you think?
I will never be at the front, so being competitive is not an issue, but handling is important, decent suspension too.

Cheers

Ken
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Offline Nathan S

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Re: Four stroke options
« Reply #1 on: December 25, 2015, 09:58:14 pm »
What era?

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Offline oldyzman

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Re: Four stroke options
« Reply #2 on: December 25, 2015, 10:03:05 pm »
HL copy...
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I have a soft spot japanese mxers with aluminium tanks. Two stroke classic Dirt Track...

Offline skypig

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Re: Four stroke options
« Reply #3 on: December 25, 2015, 10:31:11 pm »

Yamaha motor, Kawasaki frame.
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Offline oldyzman

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Re: Four stroke options
« Reply #4 on: December 25, 2015, 10:42:17 pm »
Big move on the KLX! reminds me of my cousin on his KDX200.
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Offline Curtis

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Re: Four stroke options
« Reply #5 on: December 25, 2015, 10:43:54 pm »
What engine/frame combination is that?
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Offline Ken 737

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Re: Four stroke options
« Reply #6 on: December 25, 2015, 10:48:49 pm »
Hi Nathan,
Pre 78 or Evo probably
Cheers
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Offline Graham

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Re: Four stroke options
« Reply #7 on: December 25, 2015, 10:57:14 pm »
Xt or tt 250 , 2 valve can be tuned on methanol to produce 32 hp, the one above is the xt 250 , 2 valve bored to take a 85mm piston with a stroked rod and is out to 420 cc estimate hp around 45-48, the klx chassis runs rings around the original xt.
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Gosh its a shame a slow 4 stroke trail bike can go so Fast !!

Offline Noel

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Re: Four stroke options
« Reply #8 on: December 26, 2015, 09:18:53 am »
Honda XL 500 in KLX 250


« Last Edit: December 26, 2015, 09:21:10 am by Noel »
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Offline FourstrokeForever

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Re: Four stroke options
« Reply #9 on: December 26, 2015, 10:08:50 am »
^^^^^SWEET^^^^^ That's what I am planning to do with my spare KLX roller!
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Offline Nathan S

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Re: Four stroke options
« Reply #10 on: December 26, 2015, 12:58:15 pm »
KLXR500 would be my first choice.
KLXT550 would be worth investigation, though.
A C&J Honda (or replica) would be excellent, but too expensive for my tastes.

The early Husky 510 is almost certainly a better bike, but much harder to live with than the Jap options - parts prices and reliability seem to be cringe-inducing.

And without wanting to bring rule arguments into this thread, I personally would be very careful of committing to an Evo project right now, particularly a 4T hybrid...
« Last Edit: December 26, 2015, 01:04:27 pm by Nathan S »
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Offline Oldfart

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Re: Four stroke options
« Reply #11 on: December 26, 2015, 02:06:08 pm »
Nathan , why not !!! 
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Offline Nathan S

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Re: Four stroke options
« Reply #12 on: December 26, 2015, 02:37:36 pm »
While the rules remain unclear, it's likely that whatever you build could end up being illegal, less competitive or simply more expensive than it needs to be.
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Offline TT5 Matt

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Re: Four stroke options
« Reply #13 on: December 26, 2015, 02:50:46 pm »
yeah the xr500 motor has a strong gearbox and can be worked over for more power if needed but why not use the xr500A chassis it comes with and work the suspension to get it up to klx handleing after all to get the big 500 lump in the klx frame you have to add to the top tube and cradle thus increaseing the wheelbase

another choice could be a usa spec dr500 with the alloy swingarm std and long travel forks or go for a bombed out xr200A and work the suspension
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Offline Oldfart

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Re: Four stroke options
« Reply #14 on: December 26, 2015, 03:01:02 pm »
DR 500 trans is made of glass also, frames are way to heavy for
my liking
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