How to Set Sag on a Dirt Bike

Beginner 10 min 14 steps 22231 views Rating: 3.9/5 Published: 2026-04-03

Put your dirt bike on a stand so the wheels are off the ground.. Measure from the rear axle up to a point where the fender and side panel meet.. Remove your dirt bike from the stand and set it on level ground.

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Steps

1

Put your dirt bike on a stand so the wheels are off the ground.

Step 1

Put your dirt bike on a stand so the wheels are off the ground.

2

Measure from the rear axle up to a point where the fender and side panel meet.

Step 2

Measure from the rear axle up to a point where the fender and side panel meet.

3

Remove your dirt bike from the stand and set it on level ground.

Step 3

Remove your dirt bike from the stand and set it on level ground.

4

Sit on the bike towards the front of the seat above the pegs in full gear.

Step 4

Sit on the bike towards the front of the seat above the pegs in full gear.

5

Have someone measure the compressed distance with you on the bike.

Step 5

Have someone measure the compressed distance with you on the bike.

6

Check the amount of sag with the bike sitting on its own.

Step 6

Check the amount of sag with the bike sitting on its own.

7

Subtract the rider sag and static sag from the unloaded sag measurement.

Step 7

Subtract the rider sag and static sag from the unloaded sag measurement.

8

Knock the top lock nut on the shock spring loose with a hammer and punch.

Step 8

Knock the top lock nut on the shock spring loose with a hammer and punch.

9

Turn the top lock nut counter clockwise with your hand to loosen it more.

Step 9

Turn the top lock nut counter clockwise with your hand to loosen it more.

10

Do some research to find your bike's recommended sag range.

Step 10

Do some research to find your bike's recommended sag range.

11

Loosen the bottom lock nut to increase the sag distance.

Step 11

Loosen the bottom lock nut to increase the sag distance.

12

Tighten the bottom lock nut to decrease sag distance.

Step 12

Tighten the bottom lock nut to decrease sag distance.

13

Tighten the shock spring's top lock nut again.

Step 13

Tighten the shock spring's top lock nut again.

14

Measure the rider sag and static sag after making adjustments.

Step 14

Measure the rider sag and static sag after making adjustments.

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