A reproduction, printed in the USA, features exploded parts views for all Steib sidecars.

This long out of print book from the Haynes Publishing Group was part of a series of photographic profiles of classic motorcycles, each focusing on a specific make and model. This volume features richly detailed photos of every aspect of the R69 and R69S, including road tests, accessories and aftermarket BMW products common to this marque.
Hdbd. 56 pages, over 120 B&W and color ill.

Do it yourself and save money. Covers the 10K maintenance check-up for all R-bikes up to 1983.

http://www.crbmw.org/

 

The Art of BMW:  90 Years of Motorcycle Excellence presents stunning studio portraiture of the rolling sculpture that BMW has been creating for the past 90 years. Each bike portrait is accompanied by a concise, authoritative profile of the machine.  From the first model, the R32 that launched BMW's motorcycle dynasty, to the latest (and fastest) model, the World Super Bike dominating S1000RR, this book captures nearly a century of motorcycling excellence.  Excellent photography.

 

Covers troubleshooting and repair of the electrical system of all R bikes from 1955 through 1990. All wiring diagrams are included.

http://www.crbmw.org/

How to perform a complete and correct tune-up on your air-cooled boxer. Covers all R-bikes up to 1988.

http://www.crbmw.org/

A wonderfully illustrated photo chronicle of BMW motorcycles and racing models from the R32 to the R1100RS.
Hdbd. 96 pages, over 200 color and B&W ill.  Available from Amazon and ABE Books. Difficult to find.

What to do and how best to do it, when that tire flattens on the road.. Covers all R-bikes up to 1984.

http://www.crbmw.org/

A historical summary of the development of BMW motorcycles.
Hdbd. 135 pages.

The largest and most venerable publication of motorcycle classified ads. Also reprints of old road tests.

https://www.cycletrader.com/
1-708-985-4995

Reprint in English.  Covers all aspect heavy maintenance as well as a section on electrics and lubrication.  The appendices contain pictures of special tools with line drawings.  B&W.  Available from Bench Mark Works at http://www.benchmarkworks.com.