What size rims would match package five rims exactly?

17x7 with 50mm offset and approx. 24lbs.

IMO try to go lighter if you can. Your speedo isn't accurate anyway so I dont think you need to be so critical in size. New tires vs. old tires can change accuracy as can different tire models in the same size class.

 

Source:
Wheel Tech - Offset

The weight is not a huge issue for MPG but it will make the car feel less sluggish when accelerating from a stop and it will help with braking distance. Remember, that no matter what you do you will suffer a mpg drop compared to the 15" OE wheels/tires but if you choose a light wheel with the correct offset and a good LRR tire you can minimize that mpg hit to something around 2-3mpg depending on how you drive.

I would try and stick with an offset of 45-50mm. Anything from 38-50mm will work, however. The higher the offset the more the wheel tucks into the wheel well and stays out of the airflow stream passing by the fenders and under the car.

 

215/45/17 tires on a 17x7.5 wheel would be fine.

What is the wheel size of the wheel in the picture? Are those the SSRs at 17x7.5? Those would be fine.

You will need to check the hub ring specs of the wheel too. The hub requires a wheel with a 54.1 ring. You can easily purchase adapter rings to downsize it to 54.1.

With the aftermarket wheel you will also need to purchase new lug nuts. The lugnuts on the 17" stockers most likely will not fit the aftermarket wheels and you will need to purchase acorn style lug nuts. Our studs use M12x 1.5 threads

 

Thanks! Those Gram Lights would fit just right. But you would need a new set of lug nuts and need to confirm what the hub specs are.​

 

On the 2010+ we have 54.1. So you just need call them and find out if they know the centerbore size and source the proper hubcentric ring adapters If needed.

If the centerbore of the wheel is larger than the vehicle centerbore, you still can use the wheels without adapters. The adapters are not absolutely necissary. You just might have an added probability that you might have some balance issues.


From Wiki! Wheel sizing - Wikipedia, the free encyclopedia

Centerbore

The centerbore of a wheel is the size of the hole in the back of the wheel that centers it over the mounting hub of the car. Some factory wheels have a centerbore that matches exactly with the hub to reduce vibration by keeping the wheel centered. Wheels with the correct centerbore to the car they will be mounted on are known as hubcentric. Hubcentric wheels take the stress off the lug nuts, reducing the job of the lug nuts to center the wheel to the car. Wheels that are not hubcentric are known as lugcentric, as the job of centering is done by the lug nuts assuming they are properly torqued down.
Centerbore on aftermarket wheels must be equal to or greater than that of the hub, otherwise the wheel cannot be mounted on the car. Many aftermarket wheels come with "hubcentric rings" that lock or slide into the back of the wheel to adapt a wheel with a larger centerbore to a smaller hub.[3] These adapters are usually made of plastic but also in aluminum.

 

Forgot to also add... There is a chance that the wheels are not hub centric. If that is the case they would be considered lug centric. For lug centric wheels it is important to mount the wheels and torque them to spec while the wheel is OFF the ground.

 

Mine is accurate to within 0.5 mph between 30 mph and 70 mph when checked against GPS.

 

Interesting. Most are not including mine. The vast majority are 1.5-2mph too fast. Different model tires can affect this slightly as will worn out tires vs. brand new tires. What's the accuracy of your GPS in feet? Have you checked it against a Scangauge?

 

Alley,

Sorry about that. I forgot you were going from a 17" to a 17". If you keep the specs and tires the same then I doubt you would see a mpg hit unless the new wheels were much heavier or terrible aerodynamically. In other words, don't sweat it. Get something you like and can afford.

 

The GPS is a high end differential unit. On a good day the circle of error is less than 10 feet. Most of the time it's 20-25 feet.
There is no point in checking against a Scangauge as the Scangauge gets the same data the speedo does (it may do the arithmetic differently, but all either can do is count wheel revolutions. Haven't got a Scangauge, anyway, while it looks interesting, I haven't figured out any actual utility to it. (I'm willing to be convinced.)

 

I was curious about the Scangauge because both my cars always report 2mph lower than the speedo. The Scanaguge and the GpS agree when accuracy is 15' or less.

 

Also, may I add that discounttiredirect.com & tirerack.com both have an awesome interactive software that u can choose the exact color of your prius & match em up to the many rims that they sell. You don't necessarily have to buy their wheels but u can research what design(style) u might like. It helped me alot in deciding.