The BMW K 75 RT motorcycle specifications include a 740 cc (45.15 cu in) engine, power of 75 hp (54.7 kW) @ 8,500 rpm, a 5-speed gearbox, and a listed weight of 258 kg (568.8 lb).
Key specifications
The 1991 model is treated as the standard specification. Only later model years with a different supplied value are shown below.
How the BMW K 75 RT 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.
About 8% lower than the BMW database average. Around the 51st percentile across BMW models.
About 19% lower than the BMW database average. Around the 31st percentile across BMW models.
About 14% heavier than the BMW database average. Around the 82nd percentile across BMW models.
About 9% larger than the BMW database average. Around the 66th percentile across BMW models.
BMW database percentile rankings
Percentiles show where this motorcycle sits across the BMW specifications database. They are descriptive database rankings, not performance ratings.
75 hp — more powerful than about 51% of BMW models with power data.
740 cc — larger displacement than about 31% of BMW models.
258 kg — heavier than about 82% of BMW models, or lighter than about 18%.
21 L — larger than about 66% of BMW fuel tanks in this database.
Mechanical overview
Additional useful specifications
| Front tire size | 100/90-18 |
|---|---|
| Rear tire size | 130/90-17 |
| Front tire width | 100 mm |
| Front tire aspect ratio | 90% |
| Front rim diameter | 18 in |
| Rear tire width | 130 mm |
| Rear tire aspect ratio | 90% |
| Rear rim diameter | 17 in |
| Power-to-weight ratio | 0.291 hp/kg |
| Power-to-weight | 290.7 hp/tonne |
| Specific power | 101.4 hp/L |
| Bore/stroke ratio | 0.96:1 (Undersquare) |
Engine specifications
| Engine type | In-line three, four-stroke |
|---|---|
| Displacement | 740 cc (45.15 cu in) |
| Power | 75 hp (54.7 kW) @ 8,500 rpm |
| Bore × stroke | 67.0 x 70 mm (2.6 x 2.8 inches) |
| Compression ratio | 11.0:1 |
| Valves per cylinder | 2 |
| Cooling system | Liquid |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
Transmission and drivetrain
| Gearbox | 5-speed |
|---|---|
| Final drive | Shaft drive (cardan) (final drive) |
Brakes, wheels and tires
| Front brakes | Dual disc |
|---|---|
| Rear brakes | Single disc |
| Front tire | 100/90-18 |
| Rear tire | 130/90-17 |
Dimensions and weight
| Wet weight | 258 kg (568.8 lb) |
|---|
Fuel and emissions
| Fuel capacity | 21.00 L (5.55 US gal) |
|---|
Performance
| Top speed | 174.0 km/h (108.1 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.