ADVENTURE TECH - SAG

Static sag (or free sag): This is the distance in millimeters that the bike settles under it's own weight. It is important to the suspension function that the bike retains some static sag in most cases.  Normally the free sag is between 5% and 10% of the total travel.

Rider Sag (also sometimes called ride height, one G, or race sag): This is the amount the bike settles with the rider on in riding position. Many Off-road setups will specify only a total sag number, generally between 90 and 110mm.  The general rule of thumb is that the sag should be 25% to 33% of the total available travel.  If you are unable to get the total sag number you seek without either too much or too little static sag, you will need to change springs.  We will be happy to recommend one for you.

How to measure Sag: With the help of a friend and a measuring tape, follow these simple steps. Place the end of the tape in the rear axle and measure up to a fixed point on the bike, in as straight a line as possible. First physically top out the rear suspension, and record this measurement. Next, let the bike settle under it's own weight, and record this measurement. The difference in these two measurements is the "static" or "free" sag. Finally, place the rider on the bike in his normal riding position, and record this number. The difference between this and the topped out number is the total, or "race" sag.

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