Supermoto racing is done on dirtbikes with slick tyres and upgraded suspension and brakes. Tracks are usually 75% asphalt (usually kart tracks) and with a 25% off road dirt section with jumps and berms. (The dirt zone in SM is always a smoother ride than any MX track as the slick tyres pack down the track making some real blue groove rubber lines, not like MX tracks that get rougher as the day goes on, as the knobbly tyres rip a new rut.)
Now, you really want to be racing supermoto because:-
Your fed up with hurting yourself doing motocross, but love jumps, berms and mud - If you ride MX then you will already have most of the supermoto skills and you will be riding a smoother track with the thrill of a good off road section as well as the new speed of a 63 BHP single cylinder 450 being held flat out around a kart track. Ton up speeds are common place on the longer straights. But the chance of accidents are lessened as the dirt zone is smoother and more predictable than MX tracks.
You have spent all your money road racing or on trackdays and want the same thrill but still be able to eat. - Supermoto is a very cheap alternative to road racing. Pick up a brand new bike for about £9500 GBP, add on a few trick bits if you really feel the need, and off you go. Tyres last days rather than sessions, track fees are more like £20 a day than £200. There are a lot more kart tracks than road race circuits and they are generally open most days, so training becomes more frequent and easier. Just about everything is a fraction of the price of road racing.
it's safer - Motorsport is dangerous, but I think supermoto is about as low risk as you can go, whilst still experiencing that 'need for speed'. The speeds are lower than road racing, the dirt is smoother and more predictable than MX. generally when you go down you slide a little in your full leather race suit, then jump up, dust yourself off, and away you go again. Damage is minimal to you and the bike.
No big repair bills - Supermoto bikes are made to crash. Even in the biggest crashes you will probably only bend a clutch lever or if you're really unlucky, bend a set of renthals. These bikes are made to crash. No expensive fairings to replace. Even after a hard days crashing your bike will generally look as good as new once you power washed her off.
Where else can you learn just about every skill you could possibly require on a motorcycle - If you're looking at greater things then there is no better training ground than supermoto. you learn road race and MX skills, you will learn heavy braking, trail braking, backing it in, rear brake wheelie control, powersliding, wheelies, stoppies, saving the front when its tucked away from you, body position, jumping, berms, controling a bike with dirty tyres on asphalt.... the list goes on. A couple of years on Supermoto will make you a better rider on any bike, you will learn and understand how to get the best out of man and machine.
It can take you all the way to the top - As well as the Supermoto racing scene that has both National, European and world championships, you will also spot a few riders moving from supermoto racing into top flight road racing and Motocross. Iker Lecuona is a current top man in moto 2, who only a few seasons ago was a 16 year old kid that won the Spanish SM road supermoto championship. You also have the likes of Christian Iddon and Keith Farmer who are former SM racers who are now throwing their weight around in BSB, and don't forget Romain Febvre who went from SM into MXGP and won a world title....all the way to the top. There are many more SM stars that have gone on to shine in other racing disciplines, it's just I can't think of them all at the moment.
Its ageless - Supermoto paddocks are made up of people from all walks of life and all ages. it's timeless. Most races have classes split by age so everyone that turns up has loads of fun and a shot at a podium. The camaraderie amongst competitors is there to be seen as friends race on the track and laugh in the bar once the day is done.
So where do you start? That's easy - book yourself into the Supermotoland race school in sunny spain for a 2 or 3 day training course on your own private supermoto track, and with a two times Spanish championship winning instructor. Everything is provided for you, bikes, food, accommodation, instruction, kit hire, medical insurance, the lot...Come on your own or get a few mates together and have a great laugh on and off the track whilst turning yourself into a much better rider.