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How to drift a SM bike?

Joined Aug 2006
24 Posts | 0+
Hi Chaps, can anyone explain me how can i start drifting the bike before and after the corner? I learnt to ride very fast as this is my third year and my third motard bike but i didn't undrestand how to drift the rear the way the SM riders do so.....I tried some technics but i didn't get the expected (pressing rear brake and the clutch before the corner). I realized that when riding without drifting just with the leg extended, the bike goes much more faster. Can anyone explain me the whole technic of drifting??? Thanks, Marios
 
You really need to be commited to back it in properly buddy, brake late and hard and turn in sharply and the bike will just about want to do it on it's own, a little bit of extra back brake or engine braking can help get the back out if required, the hardest part is the transition from sliding under brakes to sliding under power for that part, you'll need a better rider than me to explain. :D
 
Here are things that "worked for me"....

Proper sag set up

To start out with run higher tire pressure in the back and run a softer compression setting at the front to allow for more exagerated dive(weight transfer forward) the tire pressure allows for alittle less traction..gradually go back to normal settings when you are comfy with the whole bike moving...

Non sintered rear pads so they don't grab allowing for a smoother transition...

I started with a higher speed corner where i drop two gears at once applying rear brake and letting out the clutch...

make sure you start the process going wide and in the start of a lean, the corner for safety reasons should have a decent run off...If you start upright is where the trouble will start as the bike will start to shudder making you feather the clutch (slipper is very handy here) so start wide and lean....

I use the front brake to modulate the slide with a small amount of pressure on the rear brake helping the torque, the rear wheel should turn almost at half the revolutions of the front...

When the bike is leaned over the bars will be crossed up enough to allow good front wheel traction (front tire facing almost straight forward) the more front brake the more dramatic the slide....If done correctly you will end up at the apex and powering almost straight out of the corner, like the MX'ers do...

I have tried to power slide out of the corner but you really have to be dragging peg for the tire to spin up...its quite fun when it happens but I truly think its not the fastest way out of the corner as you are going slower wrestling with traction...with the other fellow deep braking on your inside and powereing almost upright out of the corner...

I always say the best place to practice this is on a flat track track or a higher speed asphault track... I guess where I am now is understanding what I do to make it consistant...not so much backin it in but picking the apex so I can drag race out of the corner with the most tracion setting up for the next corner....The old joke is brake when you see god....me I brake when I'm at the same point last time and didn't crash 8O

Some will say try the lower speed stuff first and drop one gear, that didn't work for me...BTW start with left handers, so you can use your rear brake and still be able to stuff a boot out If needed...
Thats all I know as I am still in the heavy learning stage...good luck ! :wink:
 
And here's how to do it properly.........

I've been an instructor for the Supermoto School here in the UK and this is how we teach it based upon how the top European SM riders - those who really know how to do it!

First, lets tackle backing it in, then we'll look at drifting....

1. bike setup - just keep it the same as normal and what you're used to - changing settings will make the bike feel different and therefore how will you know how it feels to start sliding? Making changes adds to the confusion and as with engine development - do one thing at a time!

2. Understand the process first and what we're trying to achieve:

a) It's not just to look good - it's about getting the bike into a better position to get the rider through and out of the corner as fast as possible.

Backing it in is therefore about getting the bike pointing further in the direction you want the bike to go so that you're then able to get on the throttle harder and earlier, and spending less time leaning too far over to get on the throttle properly - if you know what I mean.

This should also answer the question as to when to back it in - only when it's the best thing to do - in other corners, knee down superbike style may be the best and fastest way round - use your judgment - it depends on the corner.

b) It's about preparing for getting out of the corner fastest therefore it is about being set up for getting straight on the gas when you hit the apex or point at which you want to fire out of the corner (whichever is most appropriate).

This should answer your question about what and how many gears you need to knock it down as you back it in - if it is a first gear corner, you knock the gearbox down to first, if it is second, you knock it down to second. And that means even if you're in sixth gear and you approach the corner. It is not as scary as it sounds and we'll build up to that....

c) You never lock the rear wheel - but you do break traction (obviously).

To do this with good control and stability you will use a mixture of the gearbox, clutch and rear brake. Notice that I don't mention the front - that is because as per normal you'll most probably be braking as hard as you can with the front brake - so nothing has changed there then :wink:

3. Breaking the traction - which is what we need to do first. This is done with the gearbox - dropping down the required number of gears and the literally dumping the clutch - after you have started leaning the bike over. As the traction breaks, the rear wheel will slight out sideways.

The best way to practice this is in a car park or somewhere similar where you can simply go straight back and forwards, making sharp turns at each end round a cone or something. For the purpose of practice select the place to do it so that you can get up to third gear, going down to first. As you ride towards your corner, make sure you're sat well forwards on your seat and if possible your body position should at the very least be held completely in line with the bike as you leaning but ideally should always be leaning slightly further to the inside even with your inside bum cheek slightly off the seat - do not whatever you do try ti sit on the bike like they do in MX (you'll find out why later). The following steps happen in rather quick succession:

1. You start breaking for the corner with your front brake to transfer weight to the front (that's also one of the reasons you need to sit forwards on the bike).
2. As you begin to brake you will obviously pull in the clutch and now drop down two gears.
2. Begin leaning yourself and bike into the corner - just do this gradually for now
3. Dump the clutch - just let it out suddenly.

You will find out if you have the right amount of lean angle into the corner when the rear begins to break away sideways. To begin with an inch feels like a mile, that is why you gradually increase lean angle. When you get used to it you'll happily do it whatever lean angle you're at.

What you will find when practicing this is that the rear will slide out and very quickly come back into line before the apex - we resolve this with the rear brake.Get used to this breaking away feeling first using only the gearbox and clutch.

The reason the rear brake is used is to maintain a constant but slow rotation of the rear wheel. What you'll have noticed is that if you just use your clutch, the engine revs quickly increase as friction between tyre and tarmac pull the wheel round quicker - that is why you experience the rear coming into line quite quickly. The rear brake is used to add more friction so that engine revs don't rise and the rear wheel maintains its slower rotation. That is all the rear brake is used for! So it is done gently!

So lets add this to the above process:

1. Set yourself up on bike, begin breaking with the front and add a little rear brake
2. Drop down through the gears
3. Lean in
4. Dump clutch

You will notice whether you're getting the rear brake pressure right by how well the bike maintains its slide to the apex. When you practice this you will also know why we only add the rear brake after you've learnt how to initiate the slide.

What you may also notice when doing these exercises is that the rear wheel may begin hop - this is rectified by using the clutch and just pulling it in very slightly.

As you practice the above you will also notice that the degree to which you're sliding varies and that you can vary it yourself, depending on the corner - this is done using the clutch and very slight adjustments on the clutch lever as your backing it in to the corner - this bit is the bit that really requires the practice and skill and marks the difference between those who can slide and those who can sliiiiiiide.!

You may notice that none of this means you have to be absolutely on it or riding aggressively to slide - it's actually a very gentle technique when you get to know it.

That should be enough to get you started........

As for the drifting bit, I think the first thing you need to do is get used to doing it on your sm bike with slicks on loose gravel or something similar and as above doing this between a couple of cones so that you're going round a couple of really tight turns getting on the power so that the bike spins round the corner, if necessary with your inside foot on the ground to give support. The really important thing to remember is that as the bike begins to slide you lean your body to the inside of the bike and also ever so slightly bringing the bike more upright (look at dirttrackers). Once you've got comfortable with this on the loose stuff, then get onto tarmac and begin with learning how to do donuts, first with the bike really leaning over stood still and with one leg on the ground. Then get used to breaking traction and pivoting yourself on you leg round in circles as the rear burns away (it is also quite good to start this on loose stuff to get used to the feel).

One point about drifting and that is really difficult for some riders to get their heads around is that you do not, whatever you do, chop the throttle! If a drift starts going too far you regulate it by holding the throttle and/or by pushing the bike more upright.

As an interesting point Valentino Rossi practices his drifting in a quarry with a bike with an MX front tyre and road rear tyre!

This should also be enough to get you started.

Have fun,
Simon
 
Simon,

VERY well said. After reading that, I feel that I could also start said practice. Very well said!!

-Parsko
 
Awesome info and very concise -thanks! Is the weighting of the pegs at all a factor?

Just had a look at the site for the school -Northamptonshire is where the GF lives - had I only known last trip over... :p Well, something on the agenda for the next trip -looks like fun :D

Cheers,
-Mike
 
Thanks for the positve comments chaps, go practice and have fun.

Weighting the outside peg is certainly a factor but it is something that can be added once you're familiar with the basics. Clearly I've only covered the beginning of getting it sliding and there are more techniques involved to develop the real sliding finesse.

Cheers,
Simon
 
Just to add.
I attended the last round in the Swedish Motor cup, and they guy who won the 450 class did not slide at all, and he was faster than all of the "sliders"
It was really funny to see that two completely different techniques were so similar in lap times. And to add, these guys were no slouches!
 
It is important to know that the slide is A tool, not THE tool.

if your only tool is a hammer, everything looks like a nail.

If you are good on getting the gas hard on the exit, the slide is great in some corners.
 
Excellent advice, may I add that a proven technique (used by all us flattrackers) is to start on something like an XR100 (ideal) or a TTR125 either one with "street" tires on it on a dirt track. Starting with a small underpowered machine is less intimidating and you'll find yourself really charging deep into turns fully crossed up and backin' it in before ya know it. This system is used by Kenny Roberts, Rich Oliver, Freddie Spencer et all, and will shorten the learning curve. One drawback is you'll find yourself having so much fun on the "little" bike, you will neglect the "big" one. Dale and I and friends have spent days banging bars with these puppies and sometimes end up crashing due to laughing so hard inside our helmets. 8O
 

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