Jon Lars Sorenson Cafe Racers
Jon Lars Sorenson, from Beverly, Washington State in the USA, kindly sent us some pics of his magnificient work on his BMW Airhead Cafe Racers. His level of workmanship and attention to the detail is an inspiration for all of us. Please read Jon's account of his Cafe Racer adventure, starting with the R80GS (red), which took him 4 years to build:
"Ever since I read my first Dunstall Norton catalogue in 1971, the cafe bike has been my favourite style of motorcycle. As I actually started to ride motorcycles I found the airhead BMW to be the best choice for my needs.
Over the years I studied the bike, and the information published by Jim Roche, Oak Okleshen, Reg Pridmore, and others, until I figured out what could be done to modify an airhead.
The philosophy of BMW to emphasize interchange ability among models and production years begs for the experiment: take the best of the bits, and see what you can do.
I choose the Monolever frame as a start because it has a lightweight swing arm, spoked hub, and keeps the durable oil-bathed driveshaft.
The R80G/S engine also has the lighter clutch/flywheel, single-row timing chain, and adapts to Nikasil cylinders, among other upgrades. The package is a good starting point for this project."
Jon's gold bike is a R90S from 1976, which he transformed in a catchy Cafe Racer, finished in Gold as an homage to his brother Nels R100RS in the same colour.
Quite a few unique details went on this bike such as trimmed the front fender, the lowered and extended the headlight position, stainless fork brace from Craig Vechorik, the Hoske exhaust, the Works shocks, the Hella turn signals and Bumm mirrors.
New Mikuni carbs were fitted for that extra performance along with special bracketery, rear engine cover plate to replace the old air box filter etc, etc.
The front wheel was built by Buchanan's Spoke & Rim, it is a deep section 18 X 2.15 front rim fitted with floating discs."