Manufactured: 1935-1979 by Aldo Guazzoni
Founded in 1935 by Aldo Guazzoni (1908-1978), the Milano company built a 500cc machine powered by a Calthorpe engine. This was followed by lightweight motorcycles fitted with their own engines, and later they built three-wheelers. Subsequent to WWII Guazzoni was a Motori Morini dealer before returning to motorcycle manufacturing in 1950, building, among others, a 150cc machine for FBM.
Guazzoni continued building classy lightweight sports bikes throughout the 1960s and 1970s including production racers, mostly fitted with reversed cylinders allowing the exhaust to exit at rear. Manufacturing ceased in 1976.
The Guazzoni rotary-valve two-stroke engine with reversed exhaust came in many guises, mostly 50cc
The production racer had a six-speed gearbox and could pull up to 15,000 revs.
Cadetti 60 engine size: 37.5 x 45mm
There were also 98cc, 125cc and 150cc engines. A 250cc Gran Turismo was advertised but may not have seen production.
Sources: Henshaw et al
Tank appears very similar to that on Franco Bonadonna's Guazzoni Matta, so it's probably a c1968 model. Engine, exhaust, headlight all non-original. Value debatable.
Here is some pictures of my bike Guazzoni.When it was old, restoring and know is in the museum together with my two old MG A coupe, MG B and Rover 2000.
Fernando Faria Paulino
The bike is in a privat museum, in Regency Hotel here in Madeira.
Fri Jun 26 2009
fcfpaulino at gmaildot com
Guazzoni 72 RM 100-125
Is the only one in Portugal, Madeira. Can you tell-me the history of this bike?
Tue Jan 20 2009
andyubp at live.co.uk
guazzoni 1961 175 2 stroke
i have a bike in very not over restored condition good nick how much are these worth in uk pounds.thanks.
Try the page on motorcycle valuations. Ed.
Tue Dec 09 2008
ddettmann at erdmandot com
Kart Engine Super A
I'm restoring a Guazzoni kart engine (circa 1961) and I'm looking for some decals/stickers. Do you know of anyone who could help me (see attached picture)?
Mon Nov 20 2006
Thu Nov 02 2006
the-begs at hotmaildot com
Guazzoni sport 1959
i have a Guazzoni 175 2 stroke (1959) i need a pair of front foot pegs and complete exasust system. have you a contact number so i can get these parts many thanks James
Mon Aug 14 2006
crisgen at hotmaildot com
Guazzoni Gran Turismo 250 cc
Please, help me!!!
I'm looking everything for this motorcycle "Guazzoni Gran Turismo 250 cc". Photos or other.
My uncle have had this motorcycle in 1952 and I'm very interesting in this model.
Pls if someone has some information about my request contact me.
Tue Jun 13 2006
stevewilson007 at hotmail.co.uk
Hi, Im contacting you to ask a question. I have found an old Guazzoni motorbike and it looks very much like the 1960 version but im not sure. I was wondering if you could tell me how much it is worth in restored condition and how much in slightly in need of restoration please? Thank you for any info. Steve Wilson
Try the page on motorcycle valuations. Ed.
Thu Mar 16 2006
wylie at babson.edu
guazzoni 50 - 1966
Had one of these at one point. Manufacuturer bore it out to 60 cc and it went like a flash. Seeing your site made me wish I had never given it away after it proved to be so finicky.
Sorry, I wish. I only have a bundle of find memories of flying down the road at 90 miles an hour on a 90 pound bike with the blistering sound of a spinning 2 cycle engine going at full tilt and being driven through without a
muffler. I am so lucky not to have killed myself. But when it got so temperamental that I had to kick it over 100 times to get it going, my interest waned.
Thu Dec 29 2005
msd at iae.nl
Guazzoni corsa ex Guido sala
i am the owner from 3 guazzon`s unna corsa la fabrica ingranigino
pixters guazzoni matta with menani parts colexione toon v d dungen ollanda
Fri Nov 11 2005
bremnerandrew at aoldot com
i need to find out more about my GUAZZONI 2T 150cc circa 1954? can you help?
well, i cannot find any pictures of the GUAZZONI at the moment but here is an even rarer GEROSA 125cc 2T from the early 1950s which I am even more keen to discover any information. HELP!!!!!!
Tue Jun 28 2005
mgputruele at hotmaildot com
necesito si pueden enviarme algunas imagenes y/o datos tecnicos de una guazzoni sports 1960
Translation: I need if they can send some to me imagenes and/or tecnicos data of one guazzoni sports 1960
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