Take a look at the build process of these Speedway bikes built right here in Malaysia by Scuderia Kelana, an outfit run by Raja Norzaini, an individual well-known in the field of motorsports here in Malaysia as a race fabricator with experience in helping support the preparation of the 12 hour Merdeka Millenium Endurance race-winning Honda Civics (with K20 Type R powertrains) for 2004 and 2005, with help from Team Kunimitsu and Japanese racing shops Mooncraft & Honda tuner Mugen (MTEC). Recently Scuderia Kelana ventured into the fabrication of Speedway bikes.

Speedway bikes are a unique type of motorcycle and are governed by FIM‘s “Track Racing Technical Rules“.

Speedway Motorcycles must:
- Weigh over 77kg
- Use a 4-stroke single cylinder engine
- Have guards fitted over moving engine parts where reasonable
- Use an additional chain guard to prevent a hand or finger/s being cut by a chain
- Have a peg fitted to prevent a broken chain flailing and injuring a rider or a fellow competitor
- Use shatter resistant plastics where reasonable
- Be fitted with a dirt deflector
- Be fuelled by methanol

Speedway Motorcycles cannot:
- Use a supercharger in any form
- Be constructed in any part from titanium
- Use uncoated ceramic parts
- Use telemetry during a race except for timing purposes
- Use any electronic components to control the engine
- Use brakes of any form

That last rule is quite scary isn’t it?

The frame is made up of steel tubes which are tack welded in a specially made jig.

These subframes bolt on to the main frame. The subframe holds the rear axle, sprocket, etc.

After being tacked and checked for dimensional accuracy the Speedway bike frame is fully welded using a Miller TIG welder. Good weld penetration is critical at this stage.

The completed frames don’t look like much at this stage, but these are the main ‘skeletons’ for the Speedway bike’s engine, transmission, suspension and other bits to bolt on to.

The engines are from the Czech Republic, manufactured by Jawa. The Jawa engines are 500cc units with an output of 70 bhp burning methanol. Notice that they have very little in the areas of braking, and that the suspension consists basically of rubber bands with dampers?

Speedway bike frames must flex just right and need to be stiff enough to have just the right grip. It must have traction on the starts and be loose enough to be able to steer/slide in the corners. The frame needs to have just the right balance between stiffness and the ability to flex.

To Scuderia Kelana, the ability to match over 40 years of development and experience by other Speedway bike manufacturers is a truimph by itself. Speedway bikes are some of the most ‘niche’ bikes to be used in the world of motorcycling. The tiny fuel tank holds 100% methanol.

The bikes seen here raced in the FIM International Cup recently held on the 27th Oct 2007. The international riders – from New Zealand, England and Japan said that the bike is as good maybe better than the currently available speedway bikes. Check out this page – www.speedwaymalaysia.blogspot.com for more pictures of the bike in action.

バイカーブードゥー

Take a look at the build process of these Speedway bikes built right here in Malaysia by Scuderia Kelana, an outfit run by Raja Norzaini, an individual well-known in the field of motorsports here in Malaysia as a race fabricator with experience in helping support the preparation of the 12 hour Merdeka Millenium Endurance race-winning Honda Civics (with K20 Type R powertrains) for 2004 and 2005, with help from Team Kunimitsu and Japanese racing shops Mooncraft & Honda tuner Mugen (MTEC). Recently Scuderia Kelana ventured into the fabrication of Speedway bikes.

Speedway bikes are a unique type of motorcycle and are governed by FIM‘s “Track Racing Technical Rules“.

Speedway Motorcycles must:
- Weigh over 77kg
- Use a 4-stroke single cylinder engine
- Have guards fitted over moving engine parts where reasonable
- Use an additional chain guard to prevent a hand or finger/s being cut by a chain
- Have a peg fitted to prevent a broken chain flailing and injuring a rider or a fellow competitor
- Use shatter resistant plastics where reasonable
- Be fitted with a dirt deflector
- Be fuelled by methanol

Speedway Motorcycles cannot:
- Use a supercharger in any form
- Be constructed in any part from titanium
- Use uncoated ceramic parts
- Use telemetry during a race except for timing purposes
- Use any electronic components to control the engine
- Use brakes of any form

That last rule is quite scary isn’t it?

The frame is made up of steel tubes which are tack welded in a specially made jig.

These subframes bolt on to the main frame. The subframe holds the rear axle, sprocket, etc.

After being tacked and checked for dimensional accuracy the Speedway bike frame is fully welded using a Miller TIG welder. Good weld penetration is critical at this stage.

The completed frames don’t look like much at this stage, but these are the main ‘skeletons’ for the Speedway bike’s engine, transmission, suspension and other bits to bolt on to.

The engines are from the Czech Republic, manufactured by Jawa. The Jawa engines are 500cc units with an output of 70 bhp burning methanol. Notice that they have very little in the areas of braking, and that the suspension consists basically of rubber bands with dampers?

Speedway bike frames must flex just right and need to be stiff enough to have just the right grip. It must have traction on the starts and be loose enough to be able to steer/slide in the corners. The frame needs to have just the right balance between stiffness and the ability to flex.

To Scuderia Kelana, the ability to match over 40 years of development and experience by other Speedway bike manufacturers is a truimph by itself. Speedway bikes are some of the most ‘niche’ bikes to be used in the world of motorcycling. The tiny fuel tank holds 100% methanol.

The bikes seen here raced in the FIM International Cup recently held on the 27th Oct 2007. The international riders – from New Zealand, England and Japan said that the bike is as good maybe better than the currently available speedway bikes. Check out this page – www.speedwaymalaysia.blogspot.com for more pictures of the bike in action.

バイカーブードゥー