Piston Pro X Hitch Bike Rack - 2-Bike 1.25" Receiver LED Lights with 4-Pin Plug Kashima Coat Galaxy Gray. The Kuat Piston Pro X is packed with top-line feature starting with genuine Kashima coated hydro-pneumatic arms make loading and unloading a one-handed operation. Touchless arms grab up to 5" wide tires keeping your bike secure and your paint pristine. low-profile integrated led tail lights synchronize with your vehicle providing enhanced rear visibility and on-road safety.99% Metal ConstructionOneTap levers make loading your bikes easy and funGenuine Kashima coated struts ensure your rack not only functions flawlessly for years but drops jaws the whole timeNo Fade PowdercoatFastFit Wheel Chock System allows for changing wheel sizes from 18” to 29” in seconds tool-freeStainless Steel Hitch LockNo Frame ContactFlat 4-Pin LED Light Connector