RUBBERCOW MOTORS

With every new build and along the rebuild process, there´s always the same question. How to differentiate from other custom builds aroun...

Call me nuts, but if this piece of German engineering isn´t sexy... The main engine block, rear drive and shaft got a 2 K antracite paint...

Whatever your term is for these, main thing is they look as slick as these ones from Timothy aka ThePowerBrick on Instagram. These are av...

Screws, screws and more screws. Details on a custom bike are more important than anything and the easiest way paying attention to detai...

Although the BMW K and R series rear drive is considered to be low-maintenance, it is not maintenance-free. As I have found out for mysel...

So all my engine covers are now finished. All glass blasted, stucture powder coating in RAL 9005 and all logos and cooling rips sanded ba...

Disassembled the carburettor rail again to a) change all screws to either brass or zinc depending on the position and b) lacquered all bl...

Let´s talk about exhaust nuts a bit. The resistance to weathering is much higher for copper and copper alloys than for steel. Galvanized ...

Welcome to a mini tutorial on how to synchronise throttles in a carburettor after a complete rebuild using iron bearing balls. Step one: ...

On any BMW K series model, the most critical part is always the water / oil pump. Especially on older K models the pump seals are prone t...

I don´t know how about you, but I sometimes prefer giving things a contrasting touch. So I took the Bavarian Blue Cafe into the wood for ...

How do you eat an elephant? Bit by bit. These carbs are really taking a lot of time to overhaul. Before we start disassembling the comple...

Our 2-valves Boxer know two types of starters, the Bosch DF 12V, which became somewhat more powerful with the release of the /7 series, a...

Day one on the K100 regulator overhauling. I wished lockdown would never end!!! Time to get stuff done. Day one was all about getting a...

It was time for a switchgear overhaul. These switches are really built to last; except for the turn light switch. Admittedly this one w...

The BMW K100 stater engine is a powerful little beast. I´ll share a video on its power below. Overhauling the starter engine is no rocket...

This is the second time I´m overhauling the complete set of brakes already. This time for my BMW K100 cafe racer project. I´ll document t...

Hi everyone, In this blog I'll show you how to give a whole new life to an old motorcycle that deserve to be taken care of, and probably ...

Before we start, just a few words about myself. I´m a non commercial, private builder living in the beautiful area of Hallertau, Bavaria...

In the Audi museum mobile, historic exhibits and contemporary forms of presentation take on an exciting symbiosis, which makes an inform...