I need to know what size spare ( donut spare ) would fit 2017 four touring? I found a 135-80-16 Came from a 2010 Prius. If I got this tire would it fit ?
It'll fit better than a 4th gen spare: outside diameter is a closer to match to the stock 195/65R15. Spare Tire for 2019 Prius Limited | PriusChat
Here is the spare Tire Retrofit IAW lohikaarme kit (including donut) that I installed in my Prius. (see Undeleting the spare tire from a 4) Spare tire donut T125/70D17 98M (OD 25") installed left rear wheel and tested sat. Vehicle: 2018 Toyota Prius Four Premium AT package. Parts List: Spare Tire Donut; T125/70D17 98M Carrier (Spare Tire Retainer); Toyota P/N 51931-47010 Box, deck floor LH; Toyota P/N 64997-47050 Box, deck floor RH; Toyota P/N 64995-47040 Box, deck floor (Center); Toyota P/N 64993-47090
Stock 15" tire, both 3rd and 4th gen: Third gen temp spare: ^ Hmm, I thought it was actually closer than that. I've stacked my (3rd gen) spare atop a wheel with stock 15" tire, and checked the variation with a carpenter's square set on the slab, saw slightly more than 1/8" difference. Fourth gen temp spare: Using this calculator: Tire Size Calculator
