Montesa Impala 175 cc 1961
La Perla Operation Impala
This is one of the three pre-production motorcycles, have committed in 1962 an expedition across Africa.
Operation Impala was motorized expedition, which was held five adventurers Catalans in 1962 across Africa on three motorcycles Montesa Impala 175 cc.
For more on this expedition see blog on the main page by the museum.

SPECIALIZATION: Tourism
Basic model: IMPALA
Model: 175
CODE: 4M
Year: 1962
MOTOR
Piston diameter: 60.9 mm.
Stroke: 60 mm.
Size: 174.77 cm ³
Compression ratio: 8.5 / 1
Power: 10.5 hp at 5500 rev / min
carburetor
BRAND: Irz
Type: 22.24ECB, 22.EC
DIFFUSER: 22mm.
electric equipment
BRAND: Motoplat ES.28M0137.17L.D
PREVIEW: 3 (24)
Spark: BOSCH (W225T1)
Separation: 0.4 mm. / 0.4 mm.
TRANSMISSION
Initial: 20/53
Secondary: 14/44
Changes: 13/30. 18/25. 21/22. 24/19
CLUTCH: Multiple discs in oil
SPEED: Speed 4
BRAKES
FRONT: Drum 180
REAR: Drum 180
TIRES
FRONT: 2,75 x 19 (1962-64), 2.75 x 18 (1965-1971)
REAR: 2,75 x 19 (1962-64), 2.75 x 18 (1965-1971)
SUSPENSION
FRONT: Telehydraulic
Back: double acting shock absorbers
Maximum speed: 100 km / h
Other features: 3.3 Fuel l./100km.
Quantity units produced: 17790