Production Model Years
1977 - 1984
Frame and Engine Numbers
6075001 - 6079670
6080001 - 6085159
6086001 - 6092865
6095001 - 6100000
6180001 - 6183592
6185001 - 6185519
6223001 - 6223330
6225001 - 6227337
6308001 - 6308050
6390001 - 6396033
———
6075001 - 6079670
6080001 - 6085159
6086001 - 6092865
6095001 - 6100000
6180001 - 6183592
6185001 - 6185519
6223001 - 6223330
6225001 - 6227337
6308001 - 6308050
6390001 - 6396033
Model Specifications
Drivetrain
Displacement 980cc
Cylinders 2
Bore x Stroke (mm) 94 x 70.6
HP @ RPM 70 @ 7250
HP @ RPM 67 @ 7000 (US: 1980-on)
Compression Ratio 9.5:1
Compression Ratio 8.2:1 (US: 1980-on)
Valves OHV, 2 per cylinder
Clutch Dry, single plate, cable operated
Transmission 5 speed, foot shifted
Final Drive Driveshaft
Running Gear
Frame Tubular steel double cradle
Front Suspension Hydraulically damped telescopic fork
Rear Suspension Twin shock swingarm
Front Brakes Twin ATE 260mm hydraulic disc single piston (Brembo 1981-on)
Rear Brakes 200mm drum, single leading shoe
Rear Brakes Brembo 260mm hydraulic disc single piston (1978-on)
Electrical
Ignition Battery/coil
Spark Plugs Bosch W5DC
Generator Bosch G1 14 13V 21A 240W
Capacities & Measurements
Weight 230kg
Fuel 24l
Wheelbase 1465mm
Top Speed 190kph
Number Produced 33648

Serial numbers 618xxxx, 6225xxx thru 6227xxx, and 630xxxx were delivered to the United States; the remainder were delivered to the rest of the world.

Comments

R100RS

Goatman's picture

1979 R100RS. The history behind the bike. Originally shipped to the UK. A gentleman from Munich brought it back with him to Germany. I found it on Ebay.de, and since it was fairly close ( I lived in Stuttgart) I borrowed a truck and bought it.
It is now sitting happily in my garage in Virginia keeping my 07 Heritage company. Hardest part of my day?
Deciding with bike to take for a ride.

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1978 R100RS RBC

guest's picture

I have owned two of these bikes. The current one I have has engine and frame S/N 6092555.
Apparently these were grey market bikes imported into the U.S. alongside the normal U.S. version.
Differences being valve size, kickstarted, rear disc, thermostatically controlled oil cooler, color,
40mm carbs and exhaust. Question: anyone know exactly how many of these bikes actually snuck into the U.S.A.
in 1978???
Thanks,
Karl

1978 R100RS

Eric's picture

Hi Karl, Your bike is a beauty!! I'm restoring my 78 RS and I think the color was the same as yours - Gold -. Is there a way to find out the original color of my bike? Looking to repaint and want to confirm original color - thanks- Eric

1978 R100SRS

guest's picture

I have a bike some call an SRS , in that is it displays an RS Badge on the engine and seat back but carries the smaller S fairing along with an oil cooler. Other features Blue seat, Paint code 999 ( or custom run per factory records)
I read about cancelled orders for Police bike and such but really just interested in production numbers and how that effects value for insurance. This bike is complete and original to the best of anyones knowledge who has seen it and has experience with that subject.

any help would be much appreciated
Dougscarrera@gmail.com

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