Vintage Thing No.105 - Tarkus radial engined trike
   The most amazing of Jake Challenger's trikes is for sale (Photo : Bonhams)   As I mentioned earlier, Jake Challenger created a series of special three wheelers named Tarkus  after the ELP track and the last of the series (I'm tempted to say latest for you never know) is this device featuring a 3 cylinder radial engine of his own design that uses BMW R100 barrels and cylinder heads.    Stable as a very stable thing, if you're going to leap aboard Tarkus be sure you're wearing split screen goggles and a sheepskin jacket (Photo : Jake Challenger)    I had an e-mail from Jake this weekend to say he's selling it and having spoken to him again and found out some more details I can divulge that it's in Bonhams Motorcycle auction at Stafford on 29th April . Unfortunately, his wife Cynthia has had a knee replacement and can no longer get in Tarkus.       The standard BMW components look like they should've been made for use in a radial 3 cylinder engine (Photo : B...