presentation of the 850 Le Mans II 1978
We often marvel at the ability of Japanese manufacturers to keep their sports bike range at the highest level by renewing their flagship models every 2 years. But if Moto Guzzi has a traditionalist image today, its Le Mans family has also often been entitled to its share of updates... and at a rate as high as the Japanese hypersports of the 21st century.
after 2 years on the market, the 850 Le Mans is evolving for the first time. However, it's more of a cosmetic update than a real revolution.
in order to stay in the race, the Mandello del Lario-based company gave in to the sirens of fashion. BMW, Moto Guzzi's designated competitor, has for some time been marketing a model that appeals greatly to sportbikers: The R100RS. This bike wins hearts largely thanks to its full fairing.
to keep up with the times, the Le Mans will also have its own fairing. However, it will be less integral than that of the BMW. In fact, it consists of a much wider fork head than on the first model, and a pair of side panels with a rather tortured design to allow the pair of air-cooled cylinders to pass through.
far from being an aesthetic unanimity-pleaser, this fairing provides real protection and gives the Le Mans II even greater road-holding capabilities.
the update also gives the newcomer a brand-new fork, brake calipers that pass behind the fork arms and, above all, a dashboard worthy of Citroën's heyday (or, as the case may be, Star Trek). For the rest, it's the same base as its big sister.
Tanthallas - Photos: Internet & manufacturer

Key facts Moto-Guzzi 850 Le Mans II (1978) : What you need to know before you buy
Model sold in 1978
Performance
- Max speed : approximately 220 km/h (136.70 mph)
- Average fuel consumption : 6.50 liters/100km (0.36 mpg)
-
Estimated range
: 346 km (215 miles)
Calculated range until tank is empty, not verified.
Specifications Moto-Guzzi 850 Le Mans II 1978
- Chassis
- Frame : Double tubular steel cradle
- Fuel capacity : 22.50 liters (5.94 US gallons)
- Seat height : 775 mm (30.51 in)
- Length : 2,190 mm (86.22 in)
- Width : 720 mm (28.35 in)
- Wheelbase : 1,470 mm (57.87 in)
- Dry weight : 196 kg (432 lb)
- Front axle
- Telehydraulic fork Ø nc
- Braking 2 discs Ø 300 mm (11.81 in)
- Front tire : 3 / 50 - 18 → Order this type of tire
- Transmission
- 5 stage gearbox
- Secondary cardan shaft
- Rear axle
- 2 lateral shock absorbers
- Braking 1 disc Ø 242 mm (9.53 in)
- Rear tire : 4 / 10 - 18 → Order this type of tire
- Motor
- two-cylinder 90° transverse V , 4 strokes
- 2 carburetors Ø 36 mm
- Cooling system : by air
- tumbled
- 2 valves per cylinder
- 844 cc
- 71 ch (70 hp) to 7,700 rpm
- 8.10 mkg to 6,000 rpm
- Power-to-weight ratio : 2.8 kg/ch
- Weight / torque ratio : 24.2 kg/mkg
- Compression : 10.2 : 1
- Standard equipment
- Brake assist : Coupled braking
- Practical information
Essentials
Gallery
Models
1978
Used
Compare the 850 Le Mans II to its competitors
FAQ Your frequently asked questions about the 850 Le Mans II 1978
- What is the power of the 850 Le Mans II?
-
The 850 Le Mans II 1978 develops a power of 71 ch (70 hp)
- What is the torque of the 850 Le Mans II?
-
The maximum torque of the 850 Le Mans II 1978 is 8.10 mkg to 6,000 rpm.
- What is the maximum speed of the 850 Le Mans II?
-
The 850 Le Mans II 1978 is capable of reaching a top speed of approximately 220 km/h (136.70 mph) on the track.
- What is the weight of the 850 Le Mans II?
-
The 850 Le Mans II 1978 has a a dry weight of 196 kg (432 lb).
- What is the fuel consumption of the 850 Le Mans II?
-
Average fuel consumption is estimated at 6.50 l/100km (0.36 mpg) according to the WMTC cycle.
- QWhat is the seat height of the 850 Le Mans II?
-
To ensure good accessibility, the 850 Le Mans II 1978 offers a minimum seat height of 775 mm (30.51 in).
- What size tires should I put on my 850 Le Mans II?
-
The standard size for a 850 Le Mans II 1978 is 3 / 50 - 18 for the front, and 4 / 10 - 18 for the rear.
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Bikers' reviews Leave a review - 2 reviews
Today, the one I've had for over 25 years transports me into a fantastic world every time I go out. Of course it has its faults, but what a personality! Until my last days ... Rating : 5/5 Respond to Bellagio
The big curves at 160km/h, with 2 people and the footrests on the ground ... it didn't move!
Unforgettable Rating : 5/5 Respond to M°