Risk Racing Seal Doctor + Mud Axe combo pack. The size option is referring to the Seal Doctor. Most full size dirt bikes use the Large Size and Most smaller bikes, like an 85cc or s small trail bike, use the small size. You can google your fork tube size on the internet and buy accordingly. For more information see the Seal Doctor page.
California Prop. 65 WARNING: This product can expose you to Bisphenol A, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.