Run Moto Run
ApriliaBenelliBimotaBMWBSADucatiFB MondialHusqvarnaKTMMoto GuzziMV AgustaNortonTriumph
BMW · 1985

1985 BMW K 100 RS

Share
1985 BMW K 100 RS
Auction record
Average sale
$6,016
Sales
5
Low
$3,600
High
$9,082
+11%vs prior 12 months

Specifications

Category
Sport touring
Displacement
987.0 ccm (60.23 cubic inches)
Displacement (cc)
987.00
Engine details
In-line four, four-stroke
Power
90.0 HP (65.7 kW) @ 8000 RPM
Top speed
222.0 km/h (137.9 mph)
Compression
10.2:1
Bore × stroke
67.0 x 70.0 mm (2.6 x 2.8 inches)
Valves/cyl
2.0
Fuel control
Double Overhead Cams/Twin Cam (DOHC)
Cooling
Liquid
Gearbox
5-speed
Transmission
Shaft drive (cardan) (final drive)
Front tyre
100/90-18
Rear tyre
130/90-17
Front brakes
Dual disc
Rear brakes
Single disc
Wet weight
260.0 kg (573.2 pounds)
Fuel capacity
22.00 litres (5.81 US gallons)

The 1985 BMW K 100 RS

1985 BMW K 100 RS sits near the top of BMW's transition-era lineup, the flagship sport-tourer built to prove the new inline-four could replace the airhead boxer without losing the brand's identity. This is a bike built for covering serious distance at speed, not for weekend posturing. The fairing and riding position favor autobahn cruising over canyon carving, and the shaft drive means you're not babysitting a chain on a 500-mile day. Owners describe it as mechanically dense and reassuring rather than exciting in a visceral sense, the kind of machine that rewards a rider who values consistency over drama.

The 1985 model carried over without significant mechanical changes from the prior year — buyers comparing it to a 1984 example should focus on mileage, service history, and condition rather than spec differences.

Typical buyers are experienced riders in their 40s and up, often former airhead owners or long-distance touring enthusiasts drawn to the K-series' reputation for durability. Collector interest remains moderate rather than speculative, appealing more to riders who want a usable classic than investors chasing appreciation.

Auction history

DateListingPriceMileageSource
Jul 7, 20261985 BMW K100RS$3,800Bring a Trailer
Dec 10, 2025Modified 1985 BMW K100RS$9,082Bring a Trailer
Sep 14, 20251985 BMW K100RS Cafe Racer$7,500Bring a Trailer
Jun 10, 20251985 BMW K100RS Cafe Racer$6,100Bring a Trailer
Sep 7, 20231985 BMW K100RS$3,600Bring a Trailer

More BMW 1985 models

1985 BMW K 100
1985 · BMW
K 100
No auction data yet
1985 BMW K 100 RT
1985 · BMW
K 100 RT
No auction data yet