Jeff Pamer: When you step back and look at the final product, it’s clear how the K100 got its nickname of the “flying brick.”
The K100RS had a run from 1983 to 1988 with minimal changes throughout its life. It was a sport touring bike with all the amenities one would expect, especially from BMW. Final drive was dealt with via shaft, smoothly doling out the claimed 90 horsepower and 63.5 lb-ft of torque from the inline 987cc four cylinder. The engine was no slouch for the time, dealing with 0-60 in 4.3 seconds and powering the bike to a top speed of 136 mph. If you were brave enough to test that top speed you were lucky enough to have Brembo on duty both front and back dealing with the slowing down part. On longer rides you wouldn’t have any worries with comfort, thanks to a comfortable seat and the monolever rear suspension. Rider Magazine’s Jerry Smith did a detailed write up on the K100RS’s entire run in January of 2018, which is a great summary of this interesting bike.
This 1987 K100RS has 21,600 miles, pretty low for a 33-year-old bike. From the looks of the pictures, the bike has been very well taken care of, which supports the seller’s claim that it has been kept in a garage it’s whole life. The seller has put a lot of work into the bike to get it ready to sell. The fuel system being gone through, the seat has been reupholstered with fresh leather and a gel insert for updated comfort, new Pirellis front and back, and front fork seals just to name a few items on the list. The more time I spent with this bike writing and learning about it, the more I liked it.
Find this BMW K100RS in Vancouver, British Columbia, Canada for approximately $4,900 here on Craigslist.