New 40+ 275 70 R17 Tires. 275/70r17 tires have a diameter of 32.2, a section width of 10.8, and a wheel diameter of 17. When searching for the perfect tire for your vehicle you need options. Best rated 275/70r17 tires or tires by lowest price for your vehicle at our online discount tire store in canada or the united states. This is only my experience that i'm sharing (not expert advice) and it could be different on another suspension setup and different tire make / model.