1953 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). Duplex full hub
- Front brake Ø
- 200 mm (7.9 inches)
- Rear brakes
- Expanding brake (drum brake). Simplex full hub
- 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 1953 BMW R51 3
1953 BMW R51 3 sits mid-pack in BMW's early postwar lineup, a proper mid-displacement twin built for riders who wanted distance-covering competence rather than sporting thrills. This is a sidevalve-to-overhead-valve-era boxer built around simplicity and durability, the kind of machine that rewards a relaxed hand on the throttle and patience with cold starts. The shaft drive means none of the chain maintenance fuss you'd get from British or Italian rivals of the period, and the low center of gravity from that flat-twin layout makes it forgiving at low speeds, even loaded with luggage for a long haul. The 1953 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1952 example should focus on mileage, service history, and condition rather than spec differences. Today's buyer is usually a vintage BMW collector or a rider stepping away from modern bikes entirely, drawn to the mechanical honesty of the era. Collector interest runs high, and clean, well-documented examples of the 1953 BMW R51 3 tend to hold their value better than flashier contemporaries.
Auction history
| Date | Listing | Price | Mileage | Source |
|---|---|---|---|---|
| Aug 3, 2026 | 1953 BMW R51/3 | $14,250 | — | Bring a Trailer |
| Jun 9, 2024 | R67/2-Powered 1953 BMW R51/3 | $13,750 | — | Bring a Trailer |
| Sep 15, 2021 | 1953 BMW R51/3 w/Steib Sidecar | $18,500 | — | Bring a Trailer |
| Jan 22, 2021 | 1953 BMW R51/3 | $26,250 | — | Bring a Trailer |