Back to Bike FinderYears: 1962 · 1961 · 1960
BMW R50 OS
1962Allround

BMW R50 OS

Key specifications

Engine
494 cc
Power
35 HP
Fuel type
petrol
Fuel capacity
6.3 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake). Duplex full hub
Rear brakes
Expanding brake (drum brake). Simplex full hub

Overview

Introducing the 1962 BMW R50 OS, a classic motorcycle that stands as a testament to BMW's engineering prowess and commitment to quality. Launched in the early 1960s, the R50 OS was positioned as an all-rounder, perfect for both commuting and leisure riding. With its iconic design, combining classic aesthetics with robust performance, this bike quickly captured the hearts of motorcycle enthusiasts worldwide. Its versatility makes it a sought-after model for collectors and riders alike, embodying a blend of German craftsmanship and the spirit of adventure. At the heart of the R50 OS lies a potent 494cc two-cylinder boxer engine that delivers a commendable 35 horsepower at 7,650 RPM. This four-stroke powerhouse not only provides impressive acceleration but also offers a top speed of 160 km/h (99.4 mph), making it an exhilarating ride on both open roads and twisty backcountry lanes. The unique horizontal orientation of the boxer engine ensures excellent balance and low center of gravity, contributing to its stable handling. Coupled with a smooth 4-speed gearbox and a reliable shaft drive, the R50 OS offers a responsive and engaging riding experience, making it a joy for both seasoned riders and newcomers alike. The R50 OS is not just about performance; it’s also loaded with features that enhance its riding experience. The frame is built from a robust steel double cradle, providing both strength and rigidity while keeping the weight down to 198 kg (436.5 pounds). The front and rear drum brakes, with a diameter of 200 mm, offer dependable stopping power, complemented by a cartridge front suspension and twin shock rear swingarm for a comfortable ride over varying terrains. With a fuel capacity of 24 liters (6.34 gallons) and a fuel consumption of just 5.1 litres per 100 km, long journeys are made easier, allowing riders to enjoy the open road without frequent stops at the pump. **

Pros

  • Iconic Design: The R50 OS features a timeless look that appeals to classic motorcycle enthusiasts.
  • Balanced Performance: The boxer engine provides excellent stability and handling characteristics.
  • Long Range: With a generous fuel tank and efficient consumption, it’s perfect for long-distance rides.

Cons

  • Kick Start Only: The absence of an electric starter may deter some modern riders accustomed to convenience.
  • Weight: At 198 kg, it may feel heavy for some riders, especially in low-speed maneuvers.
  • Drum Brakes: While reliable, the drum brake system may lack the stopping power and responsiveness of modern disc brakes.

Technical details

Source specification data

Make
BMW
Model
R50 OS
Category
Allround
Starter
Kick
Power
35.00 HP (25.5 kW)) @ 7650 RPM
Clutch
Dry-single plate-cable operated
Gearbox
4-speed
Ignition
Magneto
Top Speed
160.0 km/h (99.4 mph)
Fuel System
Carburettor. Bing
Bore X Stroke
68.0 x 68.0 mm (2.7 x 2.7 inches)
Compression
9.5:1
Displacement
494.00 ccm (30.14 cubic inches)
Cooling System
Air
Engine Details
Two cylinder boxer, four-stroke
Fuel Consumption
5.10 litres/100 km (19.6 km/l or 46.12 mpg)
Greenhouse Gases
O2
g/km. (
O2
-
Carbon
dioxide emission)
Lubrication System
Wet sump
Transmission Type Final Drive
Shaft drive (cardan)
Fuel Capacity
24.00 litres (6.34 gallons)
Overall Width
660 mm (26.0 inches)
Overall Height
980 mm (38.6 inches)
Overall Length
2,125 mm (83.7 inches)
Weight Incl Oil Gas Etc
198.0 kg (436.5 pounds)
Seat
Dual seat
Rear Tyre
3.50-18.00
Frame Type
Steel doble cradle
Front Tyre
3.50-18.00
Rear Brakes
Expanding
brake (drum brake).
Simplex
full hub
Front Brakes
Expanding
brake (drum brake).
Duplex
full hub
Rear Suspension
Twin shock-Swingarm
Front Suspension
Cartridge
Rear Brakes Diameter
200 mm (7.9 inches)
Front Brakes Diameter
200 mm (7.9 inches)