MCSCustom throttle tension screw kit. Small knob 906051 fits 74-17 Big Twin; 79-21 XL Sportster. With single or dual throttle cable (excl. XG Street) (NU) Metal. Tension spring included. Allows you to adjust tension on the throttle sleeve for the old-time 'cruise control'. OEM replacement reference 56397-74C (OEM style knob), 56402-83A (OEM knob & spring kit), 56394-74 (spring only) Δείτε περισσότερα στον κατάλογο V-Twin Home > Parts > Handlebars & Hand Controls > Throttle Control > Throttle Control Parts & Accessories > Throttle Tension Screw > Custom throttle tension screw kit. Small knob