What should my race sag be?

The correct amount is approximately 33% of the bikes total available travel, usually between 95-115mm on full size bikes. The correct amount varies because of bike geometry, rider preference, and type of riding. The rider sag should be set with the rider in full gear.

How many inches of sag should a dirt bike have?

The amount of slop in the rear end is called “free sag.” 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.

How do I stop my dirt bike from sagging?

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.

How is race sag calculated?

To get the actual sag figure you find the midpoint by averaging the two numbers and subtracting them from the fully extended measurement L1: static spring sag = L1 -[(L2 + L3) / 2].

How much sag is too much?

Set the Sag 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.

How much sag is trail riding?

For the rear shock – 20% – 30% sag is recommended. For the most part, this can be used across the board for trail bikes and downhill bikes. Again, keep in mind you may want more or less sag depending on your bike, weight, and riding preferences. For the front fork- 10% sag is recommended.

Why is setting sag important?

sag sets your absolute vertical position along the travel stroke of the suspension. if your sag is set so that just sitting on the bike you are already bottoming out the suspension, then if you hit the slightest bump you will run out of suspension travel and the bump will not be absorbed.

How is sag measured?

Sag is calculated by averaging L2 and L3 and subtracting it from fully extended. Note: FREE SAG is the amount the bike compresses with the weight of the bike only – no rider.

How important is rider sag?

The reason why we have sag in the first place regardless of balance and steering is to allow the shock to travel over the terrain and follow the ground. Having the shock sag 100mm’s allows it to extend into pot holes and between acceleration bumps to absorb the impact with little chassis movement among other things.