13-04-15, 12:03 AM
You were correct in winding up the preload, but at 20Stone you would probably want to change the springs and go up to at least 10w oil at the front and probably change the spring if not the complete shock at the rear.
Get a friend to assist in setting the laden static sag and see if you can get it to about 30 to 35mm front and 25 to 30mm rear as a start point.
Put a cable tie round the fork leg and push it up against the dust seal. With it off the stand sit on it, then get off and pull up the front until the weight is off the front and measure the distance between the cable tie and the dust seal, anything more than 35mm wind the preload up more.
With the rear measure from the axle to a fixed point on the bike directly above the axle. Measure the distance with you sitting on the bike off the stand and again with you off the bike and the rear lifted to take the weight of the suspension or on the centre stand if you have one. If the difference is more than 30mm turn the preload up.
That is a start point.
Get a friend to assist in setting the laden static sag and see if you can get it to about 30 to 35mm front and 25 to 30mm rear as a start point.
Put a cable tie round the fork leg and push it up against the dust seal. With it off the stand sit on it, then get off and pull up the front until the weight is off the front and measure the distance between the cable tie and the dust seal, anything more than 35mm wind the preload up more.
With the rear measure from the axle to a fixed point on the bike directly above the axle. Measure the distance with you sitting on the bike off the stand and again with you off the bike and the rear lifted to take the weight of the suspension or on the centre stand if you have one. If the difference is more than 30mm turn the preload up.
That is a start point.