1954 BMW R51 3

Specifications
- Category
- Allround
- Displacement
- 494.0 ccm (30.14 cubic inches)
- Displacement (cc)
- 494.00
- Engine details
- Two cylinder boxer, four-stroke
- Power
- 24.1 HP (17.6 kW) @ 5800 RPM
- Top speed
- 135.0 km/h (83.9 mph)
- Compression
- 6.3:1
- Bore × stroke
- 68.0 x 68.0 mm (2.7 x 2.7 inches)
- Fuel system
- Carburettor. 22mm
- Fuel control
- Overhead Valves (OHV)
- Lubrication
- Wet sump
- Cooling
- Air
- Gearbox
- 4-speed
- Transmission
- Shaft drive (cardan) (final drive)
- Clutch
- Dry-single plate-cable operated
- Frame
- Steel single cradle
- Front suspension
- Cartridge
- Rear suspension
- Telscopic
- Front tyre
- 3.50-19.00
- Rear tyre
- 3.50-19.00
- Front brakes
- Expanding brake (drum brake)
- Front brake Ø
- 200 mm (7.9 inches)
- Rear brakes
- Expanding brake (drum brake)
- Rear brake Ø
- 200 mm (7.9 inches)
- Wet weight
- 190.0 kg (418.9 pounds)
- Height
- 985 mm (38.8 inches)
- Length
- 2130 mm (83.9 inches)
- Width
- 790 mm (31.1 inches)
- Wheelbase
- 1400 mm (55.1 inches)
- Fuel capacity
- 17.00 litres (4.49 US gallons)
- Starter
- Kick
The 1954 BMW R51 3
1954 BMW R51 3 sits in the middle of BMW's postwar twin-cylinder lineup, a solid all-around machine built for riders who wanted dependable transport rather than a sport mount. This is a shaft-driven boxer twin designed to be ridden hard on mixed roads for years without complaint, and that cardan final drive means none of the chain maintenance headaches common to British rivals of the era. The riding character rewards a relaxed hand: it's a bike for covering distance on secondary roads, not chasing top speed, though it has enough legs for confident highway cruising by mid-1950s standards. The 1954 model carried over without significant mechanical changes from the prior year, buyers comparing it to a 1953 example should focus on mileage, service history, and condition rather than spec differences. Today's buyer tends to be a rider already familiar with vintage BMW ownership, someone stepping down from a larger modern boxer for a simpler mechanical experience, or a collector building out a postwar BMW lineage. Interest in the 1954 BMW R51 3 remains moderate, driven mostly by condition and originality rather than rarity, so well-documented examples with clean shaft drive and matching numbers command the most attention.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Nov 6, 2025 | 1954 BMW R51/3 | $11,851 | — | Bring a Trailer |
| Nov 10, 2022 | 1954 BMW R51/3 | $20,000 | — | Bring a Trailer |
| Dec 29, 2020 | 1954 BMW R51/3 | $31,000 | — | Bring a Trailer |
| Nov 4, 2020 | 1954 BMW R51/3 | $19,250 | — | Bring a Trailer |