Here is my low cost, gas cap mod, for those who have a hard time gripping the OEM gas cap. They are inexpensive or check with a fishing buddy.
I used the inside of a fishing line spool, it will line up with the slots of the gas caps. I molded it in using black 2 part epoxy. I used milliput from amazon.
The 3 blade design fits in with the Slingshot style.