BMW R 75-6 Specs (Top Speed | Horsepower | Weight)

The BMW R 75-6 motorcycle specifications include a 745 cc (45.46 cu in) engine, power of 50 hp (36.5 kW) @ 6,200 rpm, a 5-speed gearbox, and a listed weight of 227 kg (500.4 lb).

Key specifications

1973-1975Model years
745 ccDisplacement
50 hpPower
227 kgWet weight
18 LFuel tank
Model years covered
197319741975

Year-specific specification changes

No material specification changes from the 1973 baseline were found in the available data.

How the BMW R 75-6 compares

This compares the motorcycle with all BMW models in this specifications database. The blue marker is this model and the grey line is the BMW database average.

Engine power50 hp
Low 12 hpAverage 81.6 hpHigh 193 hp

About 39% lower than the BMW database average. Around the 35th percentile across BMW models.

Displacement745 cc
Low 247 ccAverage 909 ccHigh 1,649 cc

About 18% lower than the BMW database average. Around the 34th percentile across BMW models.

Wet weight227 kg
Low 130 kgAverage 226.7 kgHigh 364 kg

Very close to the BMW database average. Around the 54th percentile across BMW models.

Fuel capacity18 L
Low 9.8 LAverage 19.2 LHigh 30 L

About 6% smaller than the BMW database average. Around the 51st percentile across BMW models.

This model BMW database average

BMW database percentile rankings

Percentiles show where this motorcycle sits across the BMW specifications database. They are descriptive database rankings, not performance ratings.

Engine power35th

50 hp — more powerful than about 35% of BMW models with power data.

Displacement34th

745 cc — larger displacement than about 34% of BMW models.

Wet weight54th

227 kg — heavier than about 54% of BMW models, or lighter than about 46%.

Fuel capacity51st

18 L — larger than about 51% of BMW fuel tanks in this database.

Mechanical overview

Engine layout snapshot

Two cylinder boxer, four-stroke • 745 cc • Air cooled • 50 hp
Chassis snapshot

5-speed • Shaft drive (cardan) (final drive) • 3.25-19 front / 4.00-18 rear

Additional useful specifications

Front tire size 3.25-19
Rear tire size 4.00-18
Power-to-weight ratio 0.220 hp/kg
Power-to-weight 220.3 hp/tonne
Specific power 67.1 hp/L
Bore/stroke ratio 1.16:1 (Oversquare)

Model information

Category Allround

Engine specifications

Engine type Two cylinder boxer, four-stroke
Displacement 745 cc (45.46 cu in)
Power 50 hp (36.5 kW) @ 6,200 rpm
Bore × stroke 82.0 x 70.6 mm (3.2 x 2.8 inches)
Compression ratio 9.0:1
Valves per cylinder 2
Cooling system Air
Fuel control Overhead Valves (OHV)

Transmission and drivetrain

Gearbox 5-speed
Final drive Shaft drive (cardan) (final drive)

Brakes, wheels and tires

Front brakes Single disc
Rear brakes Expanding brake
Front tire 3.25-19
Rear tire 4.00-18

Dimensions and weight

Wet weight 227 kg (500.4 lb)

Fuel and emissions

Fuel capacity 18.00 L (4.76 US gal)

Performance

Top speed 181.0 km/h (112.5 mph)

Disclaimer: Specifications may vary by market, trim, production date and optional equipment, and scraped or historical data can contain errors. Comparison and percentile values are calculated from BMW models in this specifications database. Always double-check important specifications against the motorcycle owner’s/service manual and official BMW information before relying on them. Visit the official BMW website.