How is race sag measured?

How is race sag measured?

The sag is usually measured in millimeters or inches to represent the distance that your shock is compressed. Race sag is measured when the rider is sitting with all of his weight on the bike, while free sag is measured when the bike is stationary on the ground without any weight on it.

How much sag should I have?

Most manufacturers recommend that you set your sag somewhere between 25 to 35 percent. If your sag is higher or lower than that, you need to make some adjustments by attaching your shock pump and increasing or decreasing the air pressure in the shock and running the calculation again.

What should rider sag be set at?

Depending on your riding style and motorcycle use, you want 30-35 millimeters of sag for the racetrack. For the street, 35-45 millimeters is ideal. Once your rider sag is set, you can confidently adjust your suspension setup to improve responsiveness, comfort, and overall ride quality.

How do you stiffen the rear suspension on a drz400?

Jack up the bike to take some weight off the swingarm, using a hammer and punch or screwdriver; rotate the bottom adjusting nut down about 1/2 an inch on top of the spring (to start with) and then tighten the locking nut down on top of that one to hold it’s place.

How much free SAG should a dirt bike have?

between 30mm and 40mm
How much free sag should there be? Free sag should be between 30mm and 40mm. If you have more than 40mm of free sag, your shock spring is too stiff. Less than 30mm and your spring is too soft.

How much sag do you run?

Traditionally, it was often said that you should run about 25% sag for cross-country and about 30% for everything else. But modern bikes generally have more progressive linkages and radically better air shocks with volume spacers to control bottom-out.

How much sag should my fork have?

For fork sag you should be aiming for 25% sag. So a 140mm travel fork should have 35mm of sag.

Does adding preload increase sag?

Preload adjustment To recap, preload affects your suspension’s sag. “Adding” preload causes that end of the motorcycle to rise, and vice versa. However, it DOES NOT adjust the suspension’s stiffness. The “stiff” impression when you crank up the preload is due to the reduced the sag.

How do you increase the sag on a dirt bike?

To change the sag, use a long punch and a large hammer to loosen the spring locking nut on the shock. 4. Then, turn the spring with your hand to adjust the rear spring preload. Make sure that when you’re turning the spring, the preload nut is also turning.

What should free sag be?

Free sag should be between 30mm and 40mm. If you have more than 40mm of free sag, your shock spring is too stiff. Less than 30mm and your spring is too soft. This is so important and so basic that you need to repeat after us: if you have excess free sag, your shock spring is too stiff.

How does sag affect handling?

HOW DOES SAG EFFECT THE HANDLING OF MY BIKE? It is very beneficial to test different SAG settings for various riding conditions. Increasing the amount of SAG on your bike drastically increases high speed stability but decreases front end traction and cornering ability.

How much sag should a motorcycle have?

How to measure the SAG of a bike?

Measure the distance between the rear axle and the same point used to measure the race sag. This will determine Dimension A (Static Sag Example: 605 mm). 2a. The second measurement is taken with the bike on the ground. But first, push down on the seat and slowly let it rise up to its final resting position.

What is race sag on a motorcycle?

RACE SAG EXAMPLE. The race sag is set to insure that the suspension works in its most effective rage and to keep a good chassis weight balance, front to rear. Setting your race sag is also the most important set up in affecting your bike’s overall handling traits.

What is a good SAG for a dirt bike?

Generally speaking, most modern bikes tend to like sag measurements from 100–108mm. We’ve found that for closed-course conditions (i.e., motocross, Grand Prix) riders typically like to be on the lower end of that range—105–106mm.

What is the best SAG height for a motocross bike?

We’ve found that for closed-course conditions (i.e., motocross, Grand Prix) riders typically like to be on the lower end of that range—105–106mm. In contrast, desert conditions will sometimes require a slightly taller sag—102-104mm.