How about a small introduction of yourself to the readers of Supermoto Central?

Marty Duke.. Thats about it really... I live and ride in Melbourne (Australia) and seem to have a facination with shiny trick bits. By day I work in the bike industry and by night, put together bikes :)



How did you get into supermoto and what do you find so great about it? 

I had a sportsbike and really hated the postition. I found it was uncomfortable and i really didnt like riding it that much. I worked with Matt Olle who had built An Australian championship supermoto bike and he gave me the idea to build a street registered supermoto. We settled on the CRF450X (this is the same original bike) and the rest is history!! This style of bike was far more comfortable for me to ride and after a couple of years riding on the road, I decided to give racing a go for a bit of fun.

When and how did the idea for this project originated?

 I raced this bike for a year and then managed to get myself another bike to race. I offered it to my gorgeous wife (Jess) to see if she wanted to come racing.. After a couple of track days she came racing, progressed quite quickly and the need to set the bike up properly for her arose. I started it earlier this year after the engine let go but the wedding and a few other things got in the way, so it was “delayed”. The Bike has been set up purely for jess, from Power delivery to suspension. (and color)



What was your inspiration?

My Wife.. As Jess was getting faster and faster, i wanted to build a bike that would be competitive and allow her to mix it with the guys.. Jess also likes “purple”, but most people probably have that figured...


What’s was the base for your project?

2008 CRF450X



Can you tell us how the build went?

Because I’ve built a few bikes, the build was fairly smooth because i’ve got plenty of Honda experience. The most time consuming part was getting bits anodized purple..

What do you use your bike for? Do you ride it on the street or just take it to the track once in a while?

The bike is used for racing with some track days added in for practice. Jess will race it in a couple of series next year. The remainder of this year will be used for testing and “fine tuning”.



Is this your first supermoto project or did you also build other supermoto bikes?

Not the first...I’ve built this one a couple of times previously.. I did an SXV, a Husky and a couple of others...

Do you have any plans for another supermoto project in the future?

Sure have.. Now that Jess is sorted, I have to get my bike built!!!!



Have you got any tips or advice for people that want to start a project like this?

There are plenty of “experts” out there...Ignore most of them!! Everyone has an opinion but its best to do your homework and learn how/why for yourself. And get a torque wrench..everyone needs a torque wrench to put a bike together...

Probably should thank a few people :)
Jess (my gorgeous wife for putting up with me – even though this is for her)
Gary - Axle Armor Australia (awesome crash protection)
Shawn - Moto-Extremes (Trick parts galore & a purple Beringer!)
Matt Olle
MXtorque (sweet circuit handguards)
MCA – Engine builder extraordinaire
Pro Circuit
The Collective (badass graphics)
Geinhart wheels

Steve – Race Dynamics suspension (awesome job)
And anyone else i may have forgotten that has helped Duke Racing!!!


Bike Specs :

MW Race Head
Pro Circuit valves
Pro circuit piston
Adige slipper cluch
Beringer Radial caliper
Magura Fork Leg Bottom
Custom suspension by Race Dynamics
Axle armor (custom purple/white)
Geinhart wheels
HGS Exhaust (custom header pipe)
Duke Racing Team graphics
Moto extremes custom seat cover
Pro circuit triple clamps
And plenty more bits.. :)

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