Moto guzzi page turner

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28 universal acclaim and, because of its specification, was sold at a premium price. The conservative market just wasn’t ready for such an expensive touring bike that provided only modest performance. Buyers still preferred the much cheaper Sport 15; after one year,

OPPOSITE: Although sophisticated for the day, Guzzi’s threecylinder touring motorcycle was unsuccessful.

the Tre Cilindri was discontinued.

P 175

LEFT: One of Moto Guzzi’s more successful ventures during the 1930s was the expansion of the lightweight range. This is the 1933 P 175.

Guzzi’s expansion of their range into the lightweight segment with the P 175 in 1932 more than compensated for the Tre Cilindri’s failure; it would be one of their more successful ventures for the 1930s. The P 175 also

BELOW: In 1934, the 175 grew to become the P 250, now with a foot-operated gear change.

pioneered several new features that would eventually

1932–1933

Tre Cilindri

find their way onto the 500cc production models, in

T ype

Four-stroke tr ansverse in-line triple

particular overhead valves. Typical for a Guzzi, the

Bore x stroke

56x67mm

cylinder head design was advanced, the two 32mm

Displ acement

494.8cc

valves having a narrow 62-degree included angle. The

taxation class for lightweight motorcycles, motoleggere,

Power

25 hp at 5,500 rpm

Compression r atio

4.9:1

engine cases were also redesigned to make them more

the sprightly P 175 retained the hand-operated three-

Valves

T win par allel overhead, pushrod oper ated

aesthetically appealing. Designed for an advantageous

speed gearbox and was produced until 1937.

Bore x stroke

68x64mm

Carburetion

A m al

Displ acement

232cc

Gears

Hand-change 3-speed

Power

9 hp at 5,500 rpm

Ignition

Coil

Carburetion

A m al or Dell’Orto SB22mm

Fr a me

Tubul ar duplex cr adle and sheet metal

1932–1937

P 175

Front suspension

Girder fork with friction da mpers

T ype

Four-stroke

Rear suspension

Swingarm with friction da mpers

Br akes

Drum front and rear

Wheels

19x 2 1/2

Tires

19x3.25

Wheelbase

1,440mm

Dry weight

160kg

Top speed

130 k m/h

magneto ignition for an automotive coil type—with a distributor driven off the right side camshaft—and a single Amal carburetor, the engine was advanced

Dry weight

135kg (P.E.)

and in 1934 the production range was expanded

Top speed

100 k m/h

Displ acement

174cc

1,886 (P); 1,568 (P.E.)

7 hp at 5,000 rpm

with the addition of the P 250 alongside the P 175.

Production

Power Compression r atio

6:1

Valves

T win inclined

valves the P 250 owed more to the P 175 than the

overhead, pushrod

racing 250s. Unlike the P 175, the P 250 had a foot-

oper ated

The Complete Book of Moto Guzzi Motorcycles

Complete_Book_Moto_Guzzi_pgs_001_045_3P.indd 28-29

operated gearbox and could be distinguished from

A m al or Dell’Orto SB20mm

the smaller model by its deeper fenders and a frame

Gears

Hand-change 3-speed

that included a sheetmetal section behind the engine.

Ignition

Bosch t ype m agneto

Fr a me

Duplex cr adle

A sprung-frame P.E. (E for elastico) soon joined the P

Front suspension

Girder fork with friction da mpers

Drum, front m anual,

Unfortunately, the Tre Cilindri didn’t meet with

Ostensibly a bored P 175, with its pushrod-operated

Carburetion

Br akes

suspension included a new design of friction damper.

Swingarm with friction da mpers (P.E.)

differences between light and regular motorcycles,

engine cases, as was the three-speed gearbox, the

frame followed the racer’s form, but the rear

Foot-change 3-speed

Rear suspension

59x63.7mm

for its time. The flywheel was incorporated inside the

Comprising two parts bolted together, the

Gears

horizontal single

Rigid

roller bearings providing a very smooth engine.

In 1933, the Fascist government abolished the tax

P 250, P.E. 250 Differing from the P 175

Bore x stroke

Rear suspension

120-degree crankshaft running entirely on needle-

P 250 and P.E . 250

1932–1937

rear pedal

250 and, while weighing considerably more, it offered superior comfort and handling.

Wheels

19x 2 1/4

G .T. 17

Tires

19x3.00

Throughout this period, some of Guzzi’s most

Wheelbase

1,320mm

successful ventures were vehicles for the military,

Dry weight

115kg

notably the G.T. 17. Based on the G.T. 16, this included

Top speed

90 k m/h

Production

1,503

the 500cc opposed-valve engine, three-speed gearbox, and sprung frame. The G.T. 17 also featured

Technical and Racing Success: The 1930s

2/9/17 3:45 PM


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