The shocks are highly adjustable and it's easy! To increase or decrease tension in the shocks you will need a Phillips screwdriver and a wrench. The screw and nut are just above the shock. When tightening to increase tension in the shock, use the screwdriver to hold the screw and tighten the nut with the wrench. It will take several turns of the nut to feel the shock tighten. DO NOT USE the screwdriver to tighten as you will likely strip the screw. You must tighten using the wrench. To reduce tension in the shock, hold the nut in place with the wrench and loosen with the screwdriver - when loosening it is fine to use the screwdriver. Again, just a little adjusting at a time until you have it just the way you like it.