วันพุธที่ 14 ตุลาคม พ.ศ. 2552

Motorcycle Suspension Setup: Getting to Grips with a Black Art

Suspension Set-up: The Basics

Whether you are a road rider or a racer correct suspension setup is the key to fast smooth riding and consistent lap times. To get the most from your bike it needs to be ridden on the conditions under which you will. It is much easier to put up the bike for the track, as you know, what conditions and for the next hour or so and then you can be the optimal settings for your dial with this particular situation.

To what extentYou change your suspension settings will depend on whether your bike will also meet with driving on the road. Unlike Roads Tracks are generally smooth and snappy. So if you go only to the bike on the track you can enjoy the luxury of fitting harder springs and the use to change the fork and shock internals too. If you are driving on the road and the track you probably will want to keep a certain comfort and concentrate on just optimizing the current device

With falseSuspension is increased, the wear of the tires and handling suffers, which in turn lead to driver fatigue. Lap times can be dramatically slower and in extreme cases can be compromised safety. Hopefully the following guide will help you take in your suspension for the dial-up faster and safer both on and off the track.

First, you need to check the fork-Shock sag: this is the amount that regulate the forks and shock absorbers under load. How to measure it as follows: button one on the hookNumber of solving them, then select the column with a pen or put a cable tie where the dust seal is sitting. Next few ask for help to remove the rods, making it only the front wheel off the ground and measure the amount of forks have traveled down. This is the static sag (or unladen SAG), this can by adjusting spring preload more preload (=) will last less sag. Repeat this process for the rear axle, this time measuring the distance from the axle to a fixed point on theTail. Now you are ready, enter your suspension. The key is to do, make it a little at a time and take notes as you go. For road riding start with the wet track settings and work from there.

Basic Setup: Check the following

Forks sag 18-22 mm for dry track, 23-27mm of rain.

Shock sag 8-10mm for dry track, 10-14mm for rain.

Check chain alignment. If it is not correct, the cancer will take on foot and bicycle sprocket, be increased.

Proper tire balance and pressure,starting with 30psi front and 32psi rear (both dry and wet).

Steering head bearings and torque specifications – if they lose, it will shake his head at high speeds.

Front-end alignment. Check wheel alignment with triple clamps. If not properly out of alignment, fork geometry will be affected and control.

Crash damage, check for proper frame geometry.

Stock Suspension Tuning Limitations

Manufacturers are planning to design a bike that works reasonably well for thea large number of riders and usages. To do this as cheaply as possible, they use valve technology with very small venturis. These are then matched with a very basic shim stack which creates a damping curve for the given suspension component. At lower speeds this design can work moderately well, but at higher speeds, when the suspension must react more quickly, the suspension is not enough oil to flow, and hydraulic lock experience. With hydraulic lock, the fork and / or shock can notdampen correctly and handling suffers. The solution is re-valve the active components to gain a proper damping curve. It does not matter what components you have, (Ohlins, Fox, Kayaba, Showa) matching them to your intended use is and the weight can significantly improve their effectiveness. Furthermore, if you can bend the damping that is required, it does not matter what brand reach, is on the component. Often with components when you need the adjusters full rotation or out, you do not have a referenceDifference. In part this is due to the fact that the manufacturer has set the damping in an area outside the optimum range. Also, because the valves have such small venturis, the adjuster makes change very little difference. After the re-valve technology, the adjusters will be brought into play, and if you make a change, you will be able to notice that it affects the way in which takes the fork or shock.

Another problem with stock suspension is the springs that are used. Often they areare progressive, thus achieving the spring rate with increased compression. This means that the valve technology is right for only part of the trip in the spring, is jeopardizing everything else. If the factory has to install a straight rate spring, it is rarely the correct rate for the weight of the rider with gear. The solution is to install a straight-rate spring that the valve technology for the total weight of the bike, rider and horse riding gear designed for the type of games.

Remember!

• Alwaysmake small adjustments, more is not always better.

• Hold fast what you have done.

• Suspension tuning is an art – be patient

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