No, we are not referring to your poor posture after a long day in the saddle. Rider sag relates to the amount that a motorcycle’s suspension compresses when you sit on it, and there is generally an optimum setting for different motorcycles and applications.
To work out rider sag we must first determine if the static sag is in the correct ‘zone’ (around 5 to 10mm). Static sag is how much of the suspension travel is taken up by the motorcycle’s weight. Then we check the sag with the rider on board.
It may sound complicated but it’s not, and we’re going to give you 10 simple steps to check this at home – all you’ll need are a few tools and a couple of willing helpers. Not only does this procedure assist your motorcycle to operate in optimal range of its suspension travel while riding, it also reveals whether the spring rates on your motorcycle need to be changed to suit your weight.
We’ll start with the front end, so the wheel needs to be off the ground with the front forks fully extended.