1981 BMW R100

Used MotorcyclesNaked Streetbikes


Get Price Alert!
Request Information
Calculate Payment
Schedule a Test Ride Insurance Quote
SOLD...... 1981 R100 Silver. Reynolds stand, S/S lines. 10K Serv, New tires

1981 R100 (RS) Silver. Chrome Reynolds Ride-off stand, Stainless Braided brake lines. Fresh 10K Service, New Metzeller tires, 20,556 indicated.

This 1981 R100 (RS) is clean and sharp looking. It started life as a R100RS, bur was soon converted to a standard R100, by removing the fairing and changing the handlebars.

We started of with a Major 10K Service, and went on from there. We discovered that the valve adjusters were all the way out, so we suspected the common 1981 valve recession. We were correct, and since we had some nice low mileage 1982 on heads on the shelf, we just changed the heads for the newer and better ones. Based on normal wear indicators, we estimate the actual mileage is arounr 40,000 to 45,000 miles.

We rebuilt the front master cylinder, and installed a pair of Braided Stainless front brake lines for more positive braking. We inspected the front and rear brake pads, and found them nearly new. We mounted and balanced a new pair of Metzeller tires and tubes. We serviced the steering neck bearing, inspected the fork tubes and dampers. Then we installed new 11 rib fork boots to give the front end a more finished look, and keep road dirt out of the fork seals. We also installed a new battery.

We found that somebody had relined the fuel tank, and did a very poor job. We stripped out the bad liner and the remains of the original liner, then properly sealed it with POR15, the best fuel tank liner we have found in decades of rehabilitating older BMWS. Unfortunately this process requires dilute acid, and we ended up with some slight discoloration in the paint clear coat in the center of the left side of the fuel tank. New original Continental braided cloth covered fuel line was installed, with in-line fuel filters.

The bike has a chrome Reynolds Ride-off centerstand (we can exchange it for stock if you prefer). The seat rear cowling features the optional BMW combo grab rail and luggage rack. An improved 1984 seat, with much better foam than earlier years, has been installed, and has been converted to lift-off, instead of hinges, to make it easier to work with. We installed a new tool tray gasket.

All the aluminum is clean and bright, the chrome is bright and solid. The exhaust is all in excellent condition except the right muffler has a rust spot on the bottom. The paint is bright and solid overall, with the only exception being the aforementioned slight discoloration on the left side of the tank.

The key fits the ignition and the fork lock. The fuel cap (unlocked) and the seat lock are missing a key. The engine and frame numbers do not match. There is no tool kit, tire pump, or owner’s manual.

The bike starts easily, warms up quickly, and settles down to a steady idle. The acceleration is very strong, and the engine smoothes out nicely for highway cruising. The transmission shifts easily and smoothly. The clutch engages smoothly.

As it is, this bike is ready for either the twisty 2 lane back roads, the mountain sweepers, or cruising down the freeway. It seats 2 comfortably for weekend rides, and would make a great daily rider for commuting into the city for work.

We would be happy to answer any questions you have about this BMW motorcycle; please call us at 614.837.1160.

To see more high resolution views of this bike in detail, please click on the link below to direct you to our online photo storage on Picturepush, or request our series of high resolution photos via an email to bmwparts@re-psycle.com.


Click on one of the thumbnail photos on the left to see it larger on the right. Then click on the larger photo on the right to see it in a full screen pop-up window. Then scroll down to the bottom right and click on the word “Full”. This blows it up to maximum size (about 6 times window size) and you can use the scroll bars to move around your view point like your eye is 2 feet from the bike.

If you would like to take this bike out on a test ride, please plan it for a dry day, and call 24 hours ahead to schedule.

*Price, if shown, does not include government fees, taxes, dealer vehicle freight/preparation, dealer document preparation charges or any finance charges (if applicable). Final actual sales price will vary depending on options or accessories selected.
NOTE: Vehicles with a price of "Request a Quote" are always included in a $0 search, regardless of actual value.