The spring rate of the Suntour NEX suspension fork can be adjusted for a softer or firmer ride. The adjustment knob is located on the left side of the suspension fork. First, remove the cap that covers the adjustment knob. Use a flathead screwdriver and be careful to not remove the cap with excessive force. Then use a 5mm HEX key to adjust the knob; some models use a slotted head that can be adjusted with a coin. For a firmer ride, adjust the screw clockwise a few clicks; for a softer ride, adjust the knob counter-clockwise a few clicks.