The stock '13 bike has only one "live" cartridge, in the right fork. (The '12 bike had active cartridges in both legs; so this is progress?) That's why only the right side has a wheel on the fork cap to adjust rebound damping, a slotted screw on the fork lower to change compression, and a hex-style spring-preload adjuster up top. Traxxion replaces the dummy cartridge with a real unit, but it's not externally adjustable. What Traxxion did, instead, is really clever. There is a bleed hole near the top of the cartridge rod that threads into the fork cap, making it possible to change the amount of bleed by altering how far the rod screws into the fork cap. We'll get back to that.