Bowman products

Bowman made aftermarket parts for BMW motorcycles.  Light flywheels, deep oil pan, big pistons, car synchronizer, carb tune, carb-sync for various models of BMW.

I must add in that I worked on BMWs with some of these products.  The aluminum flywheels were well known to have the S and TDC marks 40 degrees off of where they should be.  The pistons were not known to work well, as they seated in poorly.  These products didn’t have a good reputation.