Friday, December 30, 2011

How to Corner Properly on a Motorcycle


(re-posted from the June 2010 Newsletter)

 
Corners and intersections are the motorcycle versions of coming upon a black diamond run on a ski hill and fearing that your skills are not developed enough to make it to the bottom .

It makes sense to use great care in a sharp turn when riding, especially if it's a blind turn. This is quite obvious, yet it must be foremost in your mind in any cornering situation.

If you are fearful of corners there is probably a good reason. You may not have the knowledge needed to understand how a bike negotiates a corner, or you may not have the skills and training to turn the bike on the line you want, when you want, and how you want.

The best thing you can do is take an  Experienced Rider Course and learn the basics of motorcycle cornering. If you have never taken the basic course, I would recommend this as your starting point. Even though you have lots of miles and experience under your belt, you still may have alot to learn and nowhere is that made more clear than if you have a fear of corners.

  Here is a proven sequence you should apply in every corner you encounter.  There are four words to learn.  Those words are ;    "slow, roll, look, and press." You're going to repeat those words during every corner.  Talk to yourself out there--talk yourself through each corner.

"SLOW"  As you're approaching the corner, you must slow to a suitable entry speed. A suitable entry speed is one that allows you to roll on the throttle and accelerate all the way through the curve. As you slow, you're going to position your bike for the turn. Position it to the outside of the turn. This means for a right turn, you're going to position your bike 2-4 feet from the left side, which is  the centerline of the road. Oncoming traffic may require you to move farther right. For a left turn, position your bike 2-4 feet from the right side, or the edge of the road.

"ROLL".... Once you've set your entry speed, get back on the throttle. You don't have to whack it open, but it needs to be "open"--that is, positive throttle--all the way through the turn. Decelerating or "rolling off" mid-turn destabilizes the bike, reduces traction, and reduces cornering clearance. Smooth, open throttle is what you want. NOTE: You haven't started turning yet! You've only slowed down, then opened the throttle back up.

"LOOK"......  Focus your head and eyes on where your bike is going to be in 2-4 seconds. Your bike will go where you're looking. Look as far through the turn as you can to find the exit. This is the point on the road where the turn is finished and you're going straight again. Since your bike will want to go where you're looking, do not stare down at the ground in front of the front tire. You don't want to go there! You also want to avoid looking at the edge of the road, the ditch, the oncoming traffic, the trees, the gravel shoulder, etc. Stare at those things long enough and guess what? Your bike will go there. Focus on where you want your bike to be in 2-4 seconds. NOTE: YOU STILL HAVEN'T TURNED IN YET.  You're still set up on the outside of the turn and you're following the curve of the road only.

"PRESS"... Press on the handlebar to lean the bike into the turn. This requires countersteering. To lean right, press forward on the RIGHT handlebar (or pull backward on the left handlebar, if that makes more sense.) To lean left, press forward on the LEFT handlebar, or pull back on the right.

This might sound backwards, but it's the only way to steer a motorcycle at speed. Initially, you point the front tire AWAY from the turn. This makes the bike lean into the turn quickly.  Once the bike is leaned over, the front tire naturally points into the turn (right for a right turn, left for a left turn). This backward method of steering is known as "coutersteering".

When you first turn the bike into the corner, you are "aiming" for the inside of the turn. Even though you're starting from the outside, you want to use all the road, therefore you want to be on the opposite side of the road during the middle of the turn. The ideal line through a turn doesn't follow the exact curve of the road. It straightens the turn somewhat. You want to finish the turn on the outside again. Outside-inside-outside.

This is hard to describe without a diagram. Draw yourself a picture of a 90-degree turn in a road. Pick a point on the outside of the turn just before the curve, and pick a point on the outside of the turn just after the curve, and make a little dot at each of those two points. Now, draw the straightest line you can between those two points while still within the edges of the road. See how it brushes the inside of the turn? Notice also that using this line effectively "straightens" the curve, making it safer and easier to negotiate.

One important note. Don't "press" until you have spotted the exit. You don't want to turn too early. Stay on your outside line, following the curve of the road, and keep looking through the turn until you see where the curve ends and the next straight begins. THAT is when you press and initiate the turn. Don't commit to it until you know for sure where you're going!

If this all sounds scary and confusing, that's because it is. It takes years of practice, training, riding experience, and focused learning to get good at this. However, every turn is pretty much exactly the same: SLOW, ROLL, LOOK, and PRESS.  Use that same pattern every time, use the outside-inside-outside path of travel, and use good throttle control and you'll be a corner expert sooner than you think.


Ride On!

Josh

 

6 comments:

  1. Cutting the apex is for the track. It is the best way to win a race as a racetrack is clean and corners are set up with no oncoming traffic. Do NOT ride like that on the street.

    Riding like that on the street might get you killed. On the street instead try to ride the center of your lane all the way round a corner and look out for gravel and debris.

    That way if an oncoming car or truck wanders into your lane a little bit (which happens a LOT) you will not accidentally clip them and crash.

    If you run outside to inside you may also slide out on loose dirt at the edge of the road left there from recent rain. So stay right in the middle. If that is hard for you to do---slow down, you are driving too fast for your skill level.

    Skills needed include countersteering, a bike that is high enough off the ground not to drag any parts, good tires for cornering and a suspension that helps you stick to the road even if there are unexpected bumps, dips or potholes.

    Good luck and drive safe. If you want to race go to the track and be a man about it.

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    1. I agree for the most part on cutting the apex, however, you want to straighten the curve as much as possible. The point of looking is to see where you want to go and follow that line. See sand? Move a little out of the way. Don't overestimate your abilities. I got complacent once by looking too far into a turn overlooking the sand gremlin. Know the road.

      Going to drag parts? Slow way the heck down. If you slow down enough, you won't need to counter steer. If that's the case, follow the lines car tires take.

      Generally outside->inside->outside is a good rule of thumb and works for most roads. In winter with lots of sand it's not a good idea. On a country road it's not a good idea. When it's raining, it's a very good idea. In the city regularly serviced by street sweepers, it's ideal.

      Good tires are a must. Preferably on the sticky side. Just got new Pirelli Demon Sport tires and they are wonderful in all weather.

      Ride defensively my friends.

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  2. If you cant corner on a bike, simple, by a harley :)

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  3. Hi. Not sure if anyone still follows this post or not, but I've read so many articles on cornering yet still can't find the answer I'm looking for. I'm even taking another course in a month or so. I understand the countersteering and concept of turning etc, however all articles mainly deal with typically a 30-90 degree turn. Can you please make an article or a comment in regards to large roundabouts and exit ramps? For example, everyday on my way home I have to take an exit ramp, it's a right hand turn however this turn is a constant radius all the way through. But to me when taking this turn, it feels dangerous and unsafe to be leaned over for what feels like a 360 degree turn with a camber that makes the bike lean even more at any given speed.

    How does one enter and complete these large round exits and get over the fear of falling?

    Regards.

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    1. After riding for about 40 years I decided to try to improve my average riding techniek espessialy in the corners (for road riding only) there is a lot of information on the internet (inside outside inside) but stay in the middle of the lane seems the most logical to me. I think if you went a bit slower on those exit ramps they would feel a lot safer. Well i'm off to try out some cornering technieks I saw on the internet. All the best. Ride safe.

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