The very special JPR Roland DKW 750 two stroke triple sidecar as raced by Jon Perkins and Ian Nickels in the Camathias cup. This is one of the very few two strokes that races in the Camathias cup as two strokes after 1967 are not allowed. It is one of the fastest sidecars of the field. The engine is a heavily modified Roland DKW Junior 750 triple, it uses reedvalve inlets, Mikuni carbs, Yamaha YZ250 pistons and a Hemmings racing transmission. 
Stumbled across some pics on the interweb of a very strange and special bike. Two Honda NSR250 engines crafted together in a Suzuki GSXR400 frame by the Hamada brothers.
I found a very nice article on the interweb with lots of facts and trivia about the Suzuki RG500 and its riders.
The ex Jack Middelburg Honda RS500 at the Motorshow in Utrecht the Netherlands.
This very special Melkus RS1000 is uprated with a 1.3-litre two stroke V6 Müller-Andernach boat engine with three Solex twin carburettors. It has also been fitted with a custom hand-built Melkus exhaust. Now producing 110hp and 133lb-ft of torque, coupled to a five-speed manual gearbox with modified ratios. Weighing around 720kg, this RS1000 can reach a top speed of more than 200kmh. One of only 101 examples ever produced. Original the Melkus had a 1000cc three cylinder engine with 69hp and a topspeed of 165kmh.
A mint Suzuki RGV250, seen at the Central Classics in Houten the Netherlands.
Here we have a piece of art made by Ton Spek, a CNC Suzuki RGB500 crankcase! First he made a 3D plastic model and after that a CNC alloy one. The original RGB500 crankcases are made of magnesium and are known for leaking and oxidation, so this is a perfect solution.
