There are two sizes of tires: Tireflip 180 and the Tireflip 180 XL. The Tireflip weighs 100 pounds and you can add up to 40 pounds to have a max weight of 140 pounds. The Tireflip 180 XL weighs 160 pounds and can add up to 80 pounds for a total weight of 240 pounds. see the videos below on how to utilize it!

https://theabscompany.com/product/tire-flip-180-xl/#video 

https://theabscompany.com/product/tireflip-180/#video