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Riding Tips
Wet Roads - Smart Positioning

Beware of Wet Roads


After a period of heavy rain, a good strategy to adopt is to follow the tyre track of a leading car. The water expulsion ability of most car tyres far exceeds that of motorcycle tyres and this makes for safer riding. Also try to avoid the concrete section on which tram rails are laid. Water will tend to pool whereas it will lie slightly below the surface in the roughness of bitumen.And remember to extend your survival space on wet roads. You need a following distance of at least three seconds to give you adequate time to respond if the vehicle ahead acts unpredictably. Give yourself even more survival space if the vehicle ahead is a truck or bus, which is harder to see around. Keeping your lights running always helps with visibility.

 

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Good Techniques Get'M Right.


The Ready Position

Well, this is the principle that when seated on a motorcycle you need to be ready to respond to circumstances outside your control.The ready position is where the rider has their left foot on the ground, right foot on the rear brake, the four fingers of the right hand around the throttle, the four fingers of the left hand pulling the clutch in, the motorcycle in first gear, the head up and eyes scanning (forward, left, right and mirrors).

Many times you will see a rider stopped at lights or an intersection with both feet down, hands on the tank or scratching something!! These riders are not taking any responsibility for their own safety and give away any control they could have.

So always use the ready position, keep scanning to see what is happening around and behind you. Then if there is the need to move quickly......YOU CAN.

 

 
Suspension Setup 2

My bike feels unstable, especially when entering turns. The bars seem to "twitch" excessively whenever a midcorner bump is encountered.....

TESSA

Problem: Tessa's bike feels unstable, especially when entering turns. The bars seem to "twitch" excessively whenever a midcorner bump is encountered. The bars often whip back and forth violently several times (or more) when Tessa is accelerating aggressively over bumps while coming out of a turn--in other words, a "tankslapper." The bike steers very easily, although a lack of traction is sometimes noticeable in the rear whenever he tries to accelerate at moderate lean angles. The bike also seems to have a dropped-down, "nose low, rear-end-high" attitude while riding..

Solution: The biggest distinguishing factor in this case is the "nose-low/rear-end-high" chassis attitude feeling. If Terry's bike definitely feels this way, then probably he has too much front end weight bias. This not only hinders traction at the rear, but also affects the steering geometry (steeper rake/less trail) and can cause the instability problems. As long as Terry has his suspension static sag levels set correctly, the first step is to try less rear spring preload and/or more front preload, to the point just before they begin to affect handling negatively; Terry should remember to adjust his rebound damping if necessary (in fact, he should check to see if decreasing the front rebound damping in small increments helps; the forks may be too stiff, hindering traction). If only partially successful, a more drastic step would be changing chassis ride height; this would involve raising the front end by dropping the fork tubes in the triple clamps (if there's enough material protruding above the top clamp, to ensure front fork structural integrity), and/or dropping the rear by shortening the rear shock (if possible).

Note: We've also seen a tankslapping tendency produced by too much rearward weight bias. Tessa might try working the opposite of the preceding paragraph solution, or check out the understeer/no front traction problem scenario for more suggestions.

MICHELLE

Problem: Although Michelle's bike has a very smooth ride while riding over potholes and such in the city, once she's out, her bike seems to "float" over the pavement like a luxury car, with little or no pavement feedback. When she starts to ride aggressively, the bike rocks back and forth excessively, especially during brake/throttle transitions, and the "floating" feeling becomes even more pronounced. Hard cornering makes the bike feel loose, almost as if it has a hinge in the middle. Michelle's tyres might begin to chatter midcorner when encountering bumps and accelerating over those bumps causes her bike to wallow or weave.


Solution: The problem here is generally not enough rebound damping. The ride is smooth and supple at low speeds, but higher speeds generate greater amounts of energy that can't be dissipated with the little damping available. As a general rule of thumb, if either end is pushed down firmly and quickly by hand, the suspension should return in a smooth, controlled manner without "rebounding" once or twice before settling down. Mike should try stiffening up the rebound damping in small steps, and remember to do the front and rear separately, not simultaneously; that way she can readily see if one or the other makes a difference. If Michele has the rebound damping cranked up to the maximum and her bike still feels soft and wallowy, she may need to have to get a rebuild of the suspension components.

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Suspension Setup 1

Although this isn't strictly a riding technique there's a lot of false information about the 'correct' set up for a bike's suspension.The one main thing that most articles on the subject miss is the most crucial

----setting the sag correctly-----

The sag range will be the same for everyone but some of you will find that you will need to change springs to get into that right range. Race bikes, generally, need harder setting than road bikes as they ride on smoother surfaces. Road bikes have a huge range of dips, bumps and potholes to cope with so need to set slightly softer.

Most of you will have different preload settings, thanks to your weight but all of you will need to be in the same range for your suspension to work at it's optimum range, namely it's middle third.

Without the sag set right the damping will never be able to work at it's best, as it will be trying to overcome the effects of a badly set spring. Don't forget that your pride and joy has been designed to work with a hugely varying type of rider on board. It has to cope with very heavy riders to very light riders. Aggressive riders to steady riders and all points and weights in between.

A compromise? Damned straight!

It's amazing that people will spend hundreds, even thousands of Dollars on suspension components and twiddle with them all day and night but never take the time to set the sag correctly and never get the bike handling any better!

So what is sag? There are two types, Static and Loaded. Static sag is the amount the bike settles under it's own weight. Loaded sag is the amount the bike settles with a rider on board.

To check that you have the right rate of spring you will need to set both the static sag AND the loaded sag, just doing one or the other is only getting half the story.

Here's what you will need to check and set your sag.

A tape measure.
A pen and paper.
Tools to adjust the front and rear preload.
Three strong friends.

Static Sag
Setting the static sag is easier than the loaded but it will still need a set of strong hands to keep the bike off the floor while you take your measurements. Lift the back wheel of the bike off the floor by pulling the bike over on its side stand.

Now, using your tape measure, take a reading from the centre of the rear wheel spindle to a point on the tailpiece that is directly above the spindle. It will be helpful to mark that point on the tailpiece for the future reference.

Write down the measurement and we will call this reading A.

Measurement A will remain the same throughout the procedure so you only need this reading once. Now put the bike back down on it's wheels and hold it upright. You will see the bike settle under it's own weight. Measure the distance from the spindle to the tailpiece. We will call this reading B.

Subtract B from A. This is your rear static sag. Keep a note of it just in case you want to change it back. Ideally you are looking for 5-10mm on a race bike and 15-20mm on a road bike.

Either compress or loosen off the spring to get into this range. The adjuster is normally a pair of rings on top of the spring. One of them is a locking ring and the other is the adjuster. You will need a C-spanner to make the adjustment. If you don't have one then a hammer and drift will do (animal!)

Now lift the front of the bike off the floor using the same side stand method. Measure from the bottom yoke to the top of the stanchion. We will call this measurement C. Like measurement A this will remain the same through out.

Drop the bike back onto two wheels and take the reading again. We will call this D.
Subtract measurement D from C. This is your front static sag reading. Keep a note of it just in case you want to change it back. Ideally you are looking for 10-20mm on a race bike and 20-25mm on a road bike. Either compress the spring or loosen it off to get in this range. The adjuster is the bit wot pokes out the top of the forks. Use a suitable spanner or socket to adjust them.

Loaded Sag
If all is well we have managed to get with in range but this isn't the whole story. We now need to take into account your weight!

Sit on the bike and have one friend steady the front, one steady the back and the other ready to measure. Sit the bike upright. Now WITHOUT touching the front or rear brakes bounce up and down a few times in the seat and then assume your normal riding position. Measure the rear of the bike as before and we will call this measurement E.

Subtract E from A and this gives you your rear loaded sag reading. Try and get between 20-25mm on a race bike and 30-40mm on a road bike by adjusting the preload as before.
Now do the same for the front. We will call this measurement F.

Subtract F from C and try to obtain 25-35mm on a race bike and 35-50mm on a road bike.
If you can't get in these ranges for BOTH Static and Loaded then you will need to change the spring for a harder or softer one. Harder if you're outside the range and softer if you are inside the range.

Now go and ride and feel the difference!

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