Tires

About

• 215/70R15 - after R is the inner diameter of tire. Refers to rim size. 70 is width of tread. [1]
• Big tractor tire sizes JD - [2]. Typical are 77 and 81" OD tires, weighing 400-600 lb [3]. Example: 15000 lb load tire weighs 650 lb [4]

Cost

Tires cost $5/lb.

• 10k lb tire, weighing about 400 lb - $2000 [5]
• 20.8R46 - 15k lb tire, 600 lb weight, $3500 - [6]

Links

• Tire Waste is a thing - 6 million tons of particulates per year
• TPU
• Open Source Tire
• Vulcanized Rubber Tire
• Rubber Tire
• Clay Spencer Tire Hammer Workshop
• Hybrid Air Tire