Nico Bakker Suzuki RG500

Here we have some nice pics of a Nico Bakker Suzuki RG500. As far as I can see it has a heavily modified RG500 Gamma engine with dry clutch and RGB500 carbs. 

For more pics see 

Nico Bakker RG500

Proton KR3 500

In 1997 Kenny Robert’s team switched from Yamaha YZRs to a bike of their own design. Based on the same principle behind the Aprilia RSW500 – that is taking advantage of the lower minimum weights for 2 or 3-cylinder bikes, Roberts and his main team engineers Mike Sinclair and Warren Willing, together with Tom Walkinshaw Racing, came up with a V3 design that was about the size of a 250cc class bike. It weighed just over 135kg and made around 160hp. The first model (Modenas KR3) suffered from engine vibration problems so a redesign was instigated. The name was then changed to Proton KR3, to mirror the new team sponsorship. On this bike Jeremy McWilliams set pole on the 2002 Australian GP, the last time a two-stroke achieved this feat.

For more pics see

Proton KR3 500

Astier 500

Found a new thread about the French 500cc v4 two stroke project, what an amazing build!
For more information (in french language) and pics see 
Astier 500

Armstrong Rotax

In 1984 Armstrong produced a 250cc Grand Prix motorcycle using a revolutionary carbon fiber frame with the Rotax tandem twin engine. Following the technology being used by the Formula One industry, the frame was fabricated by car constructor Reynard Motorsport. The designers of this bike were Mike Eatough and Barry Hart, they created the first motorcycle using a carbon fiber frame to compete in Grand Prix. It was raced by Niall Mackenzie.
For more pics see
Armstrong Rotax

Bakker HRD Suzuki TR750

Yesterday when I was searching on the Dutch auction site Marktplaats this bike popped up. I had to look twice, because I always thought that it was scrapped. This is one of the HRD Suzuki TR750's made by Derk Haan who had a company called Haan Racing Development (HRD). It was ridden by Willy Dijkema and Rob Bron and sponsored by Nauta Motoren. Rob Bron raced it at Daytona in 1975 in his famous golden racing outfit as a member of the Dutch Daytona Racing Team. He had some problems with it, first the front wheel broke, after that the crank lost his life and after a 30 hour spannering marathon by Derk and Willy he managed to qualify. After 16 rounds in the race the expansion pipes broke and that was the end of his 1975 Daytona adventure. This is not a factory TR, the engine is a tuned GT750 and the frame is made by Nico Bakker. I did some bidding on the bike, but someone had more luck and after a while the advertisement was removed. Could this be one of Rob Bron his old bikes? Hope to see the bike somewhere in the near future!
Update 20-5-2020: According to the new owner it is Rob Bron's old bike.
For more pics see
Bakker HRD TR750
and
Nico Bakker GT/TR750

GPA Suzuki RG500

This time some pics of a very nice one of special the GPA Suzuki RG500.  The builder also owns a Golinelli RG500, take a look at his site.
For more pics see
GPA Suzuki RG500
The site of the builder
LGR Prototipi per Passione
Want to know how it sounds?
GPA RG500 warm up

Yamaha TZ1500 formula car

V8 1500cc Yamaha based two stroke formula car with the chassis built by the Penistone based sidecar legend, the late Terry Windle. The owner of this amazing car was Roger Matthews. He made the 1500cc engine,  the 2 TZ750cc engines sat on a home made crankcase housing with a final driven primary shaft into the gearbox.
For more pics see
Yamaha TZ1500 formula car