BMW K 100 RT - 1985 Specifications and Reviews
The 1985 BMW K 100 RT is a liquid-cooled touring motorcycle designed for long-distance riders seeking comfort and reliability. Its 987cc inline-four engine delivers smooth power through shaft drive, while the advanced technology and weather protection make it ideal for all-day highway cruising. This model is best known for pioneering BMW's revolutionary K-series chassis and establishing the modern sport-touring category.
General information | |
| Category | Touring |
| Year | 1985 |
| Model | BMW K 100 RT |
Engine and Transmission Specifications | |
| Transmission typefinal drive | Shaft drive (cardan) |
| Gearbox | 5-speed |
| Cooling system | Liquid |
| Fuel control | DOHC |
| Valves per cylinder | 2 |
| Bore x stroke | 67.0 x 70.0 mm (2.6 x 2.8 inches) |
| Compression | 10.2:1 |
| Power | 90.00 |
| Stroke | 4 |
| Engine type | In-line four |
| Capacity: | 987.00 ccm (60.23 cubic inches) |
| | |
Physical measures and capacities | |
| Weight incl. oil, gas, etc | 272.0 kg (599.7 pounds) |
BMW K 100 RT dimensions and frame | |
| Rear brakes | Single disc |
| Front brakes | Dual disc |
| Rear tyre dimensions | 130/90-17 |
| Front tyre dimensions | 100/90-18 |
| | |
Speed and acceleration | |
| Top speed | 206.0 km/h (128.0 mph) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Fuel capacity | 22.00 litres (5.81 gallons) |
Performance Profile & Rider Fit
90 hp
Peak Power
4.2s
0-60 mph
128 mph
Top Speed
Best For
Track35%
City45%
Cornering55%
Daily Riding70%
Touring95%
Passenger85%
Rider Profile
| Best For | Suited to riders with at least some experience handling a heavier, shaft-driven machine, as the K 100 RT's mass and length reward smooth, deliberate inputs over aggressive riding. |
| Purpose | Built primarily for long-distance touring, combining a torquey inline-four engine with weather protection and a stable chassis for eating up highway miles. |
| Rider Fit | At 272 kg the bike demands reasonable strength and confidence at low speed and when maneuvering it off the sidestand, though its low center of gravity makes it manageable once rolling. |
| Character | A classic understated German tourer that favors mechanical smoothness, shaft-drive reliability, and unhurried, composed cruising over sharp sporting thrills. |
| Not Ideal For | Not a good fit for riders seeking flickable agility, off-road capability, or lightweight city commuting. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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