Throttle, Idle, Cruise Control Cables & Linkages
About Throttle, Idle, Cruise Control Cables & Linkages
Throttle cables connect the twist grip to the carburetor or throttle body, and an idle cable, on bikes that use one, works with it to bring the throttle back to idle. They stretch, fray, stiffen and kink with age, and a sticky or slow-to-close throttle is a safety problem, so a worn cable is worth fixing right away. Riders also fit longer cables when they change to taller handlebars, and some choose braided stainless for looks.
Length is the first decision. Listings give the cable length or the extra length over stock, such as +6 inch or +3 inch for taller bars, so measure what you have or compare with your original. Next, check the set: many bikes use a pair of cables, a throttle cable and an idle cable, or push and pull cables, as in the Honda and Kawasaki listings. Then choose the sheath, such as black vinyl or stainless braided. Model fit matters, so use the Ride Finder at the top of the page. Extensions for electronic throttle controls are also listed for Harley-Davidson models.
Brands here include Domino, Drag Specialties, Barnett, S&S Cycle and Motion Pro. The cable feeds Carburetors or the throttle body, and if you are fitting taller bars, check the other cables and lines for length too. The wider group is Air Intake & Fuel Delivery.
FAQs on throttle and idle cables
How do I choose the right length throttle cable for new handlebars?
Taller or wider bars need longer cables. Measure the old cable's overall length and add the extra reach of the new bars, or choose the listed extra length such as +6 inch. Turn the bars fully both ways before riding to confirm the cable does not bind, pull or open the throttle.
Why is my motorcycle throttle sticking or slow to close?
A dry, kinked or frayed cable, a dirty twist grip or poor routing can all cause it. Lubricate a cable that is meant to be lubricated, check its path and look for fraying. A throttle must snap shut when released, so replace a damaged cable and do not ride until it does.
What is the difference between push and pull throttle cables?
Many bikes use two cables on the twist grip, one that opens the throttle and one that closes it. Listings label them push and pull, or throttle and idle, depending on the model. Both need to match your bike, so buy the set or the specific cable your listing names.
How much free play should a throttle have?
Check your owner's manual for the figure. Most bikes have a small amount of play at the grip so the throttle fully closes and the cable is not pulled when the bars are turned. Too little play can hold the throttle slightly open, so adjust it at the cable adjuster.
Can I replace a vinyl throttle cable with a braided one?
Yes, as long as the length, the end fittings and the number of cables match your bike. The outer sheath changes the look and sometimes the feel, not the fit. Check the listing for your model and confirm the cable moves freely through its full travel.
