RG500 - RZ500 - NS400R

Hi. Well it just goes to show that we don't all get off on the same
things.....

Truth be told, I'd really like a Cagiva Mito, with a Suzuki Stinger,
twin cyclinder 125 engine "magically" mated to the 7 speed gearbox, but
I admit I am a bit weird. <shrug>

regards,
CrazyCam

 

In aus.motorcycles on 1 Sep 2005 22:46:33 -0700

Eh?

Front Suspension Paoli 40mm 'upside down', adjustable preload and
compression damping

Wheels (Front/Rear) Marchesini 3.5/ 5.5 x 17", 3 spoke

Brakes (Front/Rear) Twin 320mm Brembo with 4 piston calipers/ single
220mm with twin piston caliper

I don't think that lot needs much upgrading....

Zebee

 

Would be shorter actually, John. The 900 'block' stands a fair bit more
vertical than the 850's.

Al

 

Actually that threshold is just whether you need an engineers
certificate, not whether it's registerable (and it is cc's btw not HP,
this crap was written by bureaucrats not modifiers The cc thing is a
nice loophole actually, it used to ignore turbos and superchargers as
well although I've heard they've closed that one (dunno either way). It
also takes no account of 2 stroke vs 4 stroke so you can swap a 250 4
stroke for a 250 2 stroke quite legally (I reckon an Across would go
rather well with a motoX 250 smoker in it

So yeah, you can register a bike with a 400% power increase very easily
if you pick the right combo*, buy a 1970's 4 stroke and stick a modern
motor in it of the same or smaller capacity and you don't even need to
do anything other than get a blue slip. Of course it'll be the most
atrocious thing to ride you've ever been on I'm sure....

The regs are on the RTA website, in fact McMod probably has a copy on
their website as well

JL
(don't know of a old/modern combo off hand that would give you 400% off
hand although double would be easy - modern 4 cylinders put out roughly
double that of their 70s forebears particularly the smaller cc ones, a
CB750 was about 60-70HP IIRC, a GSXR750 will give you about 135 again
IIRC, a 600 british single was about 25-30 ish ? Modern ones about 50ish ?)

 

Aaah does it ? I've not really eyeballed one for more than the 30secs I
looked at your new bike the other month, so it was a new engine from
scratch then ? The TRXisti at the time it came out were hoping it would
be a bolt in swap for the 850. Have you compared the 2 side by side or
are you going off manufacturers specs ?

More vertical equals taller - that could be an issue for this
application, then again it might make it closer to the original motor's
specs.

JL
(there go my ideas about squeezing one into a TRX frame by the sounds :-(

 

What scares me is how alike you and I think ! That's been a thought I've
been mulling over ever since I saw the second hand one for sale at
Gosford (CC MC's) where I got the Raptor.

JL
(but then if I built all the projects I daydream over I'd have a hundred
bikes and a full time job doing it

 

Ewwww, strike that earlier comment about thinking alike, you ARE a bit
weird !

JL

 

Yeah sorry, didn't google it up before posting that,assumed it was a
70's/80's bike and googlegroups didn't have the thread pointing out it
was a modern bike at the time I posted that.

The running gear will do nicely !

JL

 

It's quite noticable. Yep, the bottom castings are all new, but designed
around the same requirements, some parts are still interchangable for that
reason. Engine mounting points arent the same either as it was new
engine/new frame so no need to worry about compatibility.

For the TRX people, the 900 barrel will fit the orig TDM motor, someone on
the Carpe TDM group has done it.

Al

 

Ah, I missed out the else between Anyone and with..... ;-)

Yup, if you start out with a machine that's only rated as 2.4 bhp it's
quite easy, and only a little bit expensive, to persuade it to generate
four times the original power. (Is this what they mean by quantum
mechanics?)

Atrocious, no....exciting, yup!

regards,
CrazyCam

 

Hmmm that's good - you get the cc increase at least - miss out on the 6
speed box though - well it's definitely better than nothing. Are the
rods the same ? Just a bigger bore or did the change the stroke as well ?

JL
(could you send me the details of this group please ?)

 

Dont know about the bore/stroke John.

The group is http://www.carpe-tdm.net/tdm/mainmenu.asp mostly Poms, but you
learn to ignore the whinging.

Al

 

I thunk it might be 15% increase in *capacity*. Power being as
difficult to measure as it is 'n' all.


GB

 

Yeah it is

JL

 

Hi James, People may call me silly (or worse) but I've got two and a
half RZ's and a Ns. I love them to bits. As lemmiwinks commented, they
are twenty years old so expect wear and tear. There are a few gems
around. I've seen one or two for sale with only 5000k from new (not
recently though). You do have to keep on the maintanence and there's
lots of mods that can be done but you wouldn't want to buy something
like this if you aren't interested in fiddling. There's lots of support
from rzrd500.com and if you're into attention all three are still
attention getters (particularly the NS) for all sorts of reasons.

Great fun to ride, my RZ's have seen 220+ and can still cut it with a
lot of bikes (not all!) in the twisties.

Richard

 

Classic! At 19 in the late '80's my third bike was a Gamma...the old man
was blown away and promptly scoured the classified for his own.
Eventually traded one and stored the other in 1993...bought that one
back & out of storage earlier in the year.

Coolant/brake fluid, g/box oil, carb sync, sparkies + rubber with only
17k kms it's a time machine that doesn't dissappoint to this day.
I'm certain it used more petrol than my falcon on blast down the Clyde
Mountain a few weeks back...but I was smiling all the way.

Mark.

 

You're silly (or worse)

Downright stupid!

Theo

 

Twat.

Postman Pat

 

Make sure you fit a decent clutch lever...

Postman Pat