The amount the suspension settles under the weight of the bike alone is called free sag, and the amount that it settles under the weight of the bike and rider is called rider sag, or sometimes laden sag. A helpful way to think about sag is as a measure of how much travel is available to extend into dips. What’s the right amount of sag? As a general rule of thumb, rider sag should be about one-fourth to one-third of total travel, with free sag about one-third of rider sag. For most standards, nakeds, sport-tourers, and sportbikes, that works out to a rider sag of about 30 to 40mm front and rear, while longer-travel ADV bikes may run as much as 60 to 75mm of sag. Cruisers, scooters, and other short-travel bikes may have as little as 25mm of sag.