16 replies to this topic

[ty250nl]

These are some pictures of my Moto Guzzi Special.
Based on a Stornello 1969 engine placed in a SWM 1980/81 frame.
It's now 244 cc. (original 160 cc).

I use it in Classic trials.

Kind regards,
Arie from Holland

[swooshdave]

That is outstanding.

Is there a great weight penalty with the engine? Were you able to get the gearing adequate?

[ty250nl]

The engine is heavy, this makes it a bit harder to lift the front.

This RCR Guzzi Special was build in the 70's in Northern Italy by a Guzzi specialist.
I bought it last year through an Italian friend who lives near him in the mountains.

The internal gearing has been altered, the first gear is very short and very strong.
The bike reacts like a twostroke, with very prompt reaction on the gas.

The rest of the engine has been changed also, crank, piston, cilinder etc.

The frame is completely SWM, with some small adjustments.

It runs great and starts first or second kick.
I compete in the Twinshock class, since the bike doesn't meet the Pre'65 rules.


My Italian friend is having himself build his own Stornello special by this specialist, in the original frame (with some enforcements), completely Pre'65 legal.


Kind regards.

[MartinM]

Here's a lightweight version, owned by an Italian friend.

[ty250nl]

Very nice bike Martin,

I hope to be able to build a new lightweight frame in the future.

What is the bikes capacity, is it 160 cc standard or enlarged?

My bike was build in the 80's, not the 70's.
The SWM basics are of a 1981/1982 model.

Kind regards,
Arie.

[trialstorm]

Hi,
I'm the builder/owner of the stornello trials showed by Martin;
just to provide a short answer to the last post:
-the bike is all-made by alluminium and titanium alloys
-the weight (w/o gas only) is 71 kg
-the engine is 249.5 cc
-the forks are made by magnesium (marzocchi 34 mm) and the bridges are made by 7075T73 machined by solid pieces
-the frame front part is made by 6061T6 welded
-the frame rear part is made by 7075T73 jointed by screws only
-the rear swingarm is from aprilia (as the wheels)
-the plastics are SWM
-the engine weight is 6 kg less than the original

for any futher info please contact me by the forum/mail

regards to all trials people

Marco

[swooshdave]

ty250nl, on Jul 16 2008, 10:15 AM, said:

completely Pre'65 legal.


Kind regards.

Nothing like saying " completely Pre'65 legal" at a trials event and seeing how many people snicker...

[ty250nl]

Hello Marco,

Thanks for the explanation of the massive work on your bike. can you post more detailed pictures?
I'm specialy intersted in your exhaustsystem which is very neat tucked away beneath the airfilterhousing.
This exceeds my skills by far :>(

I plan to have a frame made in the future for this engine, out of nickled chromebolybdeen.
Not just for the weight but also because I love the looks of this material.

I owned Guzzi's from '78 and this bike was my trialdream come true.

And Dave, I think the limits of what is "original" in Pre'65 are being stretched every week :>)

Kind regards

[charlie prescott]

Hi Guy's
Like the bike's alot, Martins frame is a bit like a Walwyn that we had built here in the late sixties. As for Pre 65 rules they are stretched to bursting point every where.

Regard's Charlie.

[trialstorm]

Hi,
the initial post is aimed to discuss about Moto Guzzi Stornello four stroke trials bike and in this case the bike is clearly NOT Pre65 as declared by the owner; NOBODY declared that the bike is Pre65!
Regards.
Marco

[ty250nl]

Sorry the Pre'65 issue came up in this section.

I was referring to Pre'65 regarding the Stornello Trialbike an Italian friend of mine is building at the moment.

The Stornello of Marco and my bike are "regular" twinshocks with an old engine :>)

Kind regards,
Arie.

[JayLael]

Those bikes are beautiful! My Compliments to you both! I bet those things are a hoot to ride!

[ohno]

Why?
I did not know there were long winters in Holland.

[pedrogo]

I sell a trials Guzzi Stornello, with preparation of M Mantovani in 2007
249 cc engine
engine weight - 6 kg as the original
Total weight is 80 kg
motor, wheels shafts in aluminum 7075
The bike is in Barcelona, Spain
Based on Stornello 5V from 1971 to 1975, no pre 65.
Ready for competition
Price E 7800 or E 8300 with freshly painted frame and tank

Javier Conde info08@grib.net
http://todotrial.mforos.com/1498934/986985...rial-stornello/


regards

[Ducman]

@TY 250 NL(Arie),
we went last weekend to the Plonkers Trial(Eurocup)in Arnhem and there was also one of your countryman competing on a stornello(4speed)i think he rode a Enfield before.There was also a guy on a SWM framed Kawasaki.Nice Bike.I have a few friends in Italy they ride Stornellos.They have ridden the Manx 2 Day Classic and the Jersey 2 Day with these bikes.Very Competitiv.We also have a few here in Germany riding these little Guzzis.
By the way are you coming to Baarlo on the 17th of October?
Chrs:Mike