Autumn I

Let's go

Autumn II

Autumn III

Saddlebags

Classified ads

It might be worth trying to recondition them...

Cylinder

Overhauled brakes

Overhauled master cylinder and better brakes.

Front wheel from a British police bike – Fixed

Weinmann BMW wheel rim, old stock from 1978, 1.85B x 19

Front wheel from a British police bike

Rusty and buckled

Ready to fly back to the other side of the pond

BikeExif

Thanks Chris!

More pics (2)

More pics

Finally

1979 R100 engine

All black paint on the engine has been bead-blasted to show the aluminum.

The 1979 engine was the last one to have a metal airbox visually integrated in the rest of the engine case. And it was the first one with the brand acronym written in full instead of the model number.

This engine has been dual plugged and fitted with a deep oil pan (aftermarket) for better cooling.

Recycled emblems

Recycled tank emblems from a BMW R90S, slightly rusty (as they should be), but no fading

New side covers

New side covers, same color as the frame. The Serpentine font was designed by Dick Jensen (1926-2000).

New seat

New custom seat based on a modified BMW R90/6 police model. Many thanks to Hugo from Sid’s Custom Upholstery, Mountain View, for the great work.

Front aluminum turn signals just fitted.

Plugs!

Old style exhaust nuts

Thanks Greg for these great looking exhaust nuts. The older models like this one had much larger fins.

Emblems

Until 1975, BMW emblems were made out of metal and enamel. Main advantage: they don't turn yellow in UV light.

Slowly taking form

The seat needs a new cover.

Rebuilt carbs

Constant velocity (or constant depression) carburetors made by Bing. This type 94 carb has a bore size of 40 mm.

Free new front wheel courtesy of BMW

In 1984, BMW recalled their front Snowflake aluminum wheels because they may "develop cracks and fractures from operating on rough roads". Today, 26 years later, BMW still honors this recall.

New tank, new bars

Repainted BMW R90S tank, new low sidecar bars and dirty grips

Misunderstanding

The valve covers only needed a bit of cleaning but the guy decided to powdercoat them white.

Tranny back on frame

Cylinder head

Left cylinder head with rocker supports, rockers and valve springs. The heads have been dual-plugged for increased reliability.

Connector rods

Rebored connector rods. All BMW rods are steel forgings.

Engine back on frame

Front end back on frame

Primer

Mark’s Body Shop in San Carlos, CA.

Powder-coated frame

Bead blasted aluminum parts

Attractive lady

Quote from the Rider’s manual:

“Two-up riding: Your companion, particularly if an attractive lady, must be provided with the same complete, good quality riding gear as your own.”

So what kind of gear does my buddy deserve?