Lexus CT200H wheels on my Prius?

Discussion in 'Gen 3 Prius Accessories and Modifications' started by Blinkn09, Oct 27, 2011.

  1. Manksgloob

    Manksgloob Member

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    (Sorry to derail a little bit but...) If theoretically someone wanted to install the CT200h wheels into a Gen II Prius...which size tire should they consider to maintain the closest odo/speedometer readings, taking into consideration the different wheel well size (to avoid rubbing)? Heck, are these rims even worth considering for a Gen II? They sound awesome for the Gen III but in this theoretical scenario this someone only has the older model ;-)

    And just for fun, here are some readings from that awesome tire calculator:

    Specification Sidewall Radius Diameter Circumference Revs/Mile Difference
    185/65-15 4.7in 12.2in 24.5in 76.9in 824 0.0%
    195/60-15 4.6in 12.1in 24.2in 76.1in 833 -1.0%
    205/45-17 3.6in 12.1in 24.3in 76.2in 831 -0.8%
    215/45-17 3.8in 12.3in 24.6in 77.3in 819 0.6%

    The first is the US-spec OEM size (too small!)
    The second is Euro/Japan-spec OEM size
    The latter two are my attempts to get as close as possible to the second size.
     
  2. F8L

    F8L Protecting Habitat & AG Lands

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    The problem with the generic tire calculator is that it does no account for actual revs/mile for every tire. The revs/mile on my 215/45/17 MXM4s is 844. Granted none of those numbers are 100% accurate and static. My point is that as long as you get close enough you are fine. Also, revs/mile for the Good Integrity OEM tire is 855. See how off those calculators can be?
     
  3. Manksgloob

    Manksgloob Member

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    Thanks, yeah, good point -- I didn't realize it was off by so much (that means my previous research for two replacement sets for the stock rims have been wrong this whole time).

    I guess I'll just have to go to the manufacturer to get the rotation information and get it as close as possible.
    (How convenient that Goodyear doesn't post that information, haha.) How did you manage to figure out the number for the Integritys?



    I am still concerned about the tires rubbing though.
    Do you think getting a 205 (or even a 215) width tire + the extra offset of the CT200h rim be a problem? Might be safer to go with the 205...
     
  4. SuperchargedMR2

    SuperchargedMR2 Diehard Rams Fan

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    Is the 185/65R15 the OEM size for the Gen II? The Gen III uses a taller 195/65R15.
     
  5. F8L

    F8L Protecting Habitat & AG Lands

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    Yes.
     
  6. Pinto Girl

    Pinto Girl New Member

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    Don't go with 40s. They're like rubber bands and even small potholes will damage the rims. 55s, maybe, but no further in my opinion.

    Also, have you ever driven a car with run flat tires? The ride will be like that on 40s. It'll be really harsh on small bumps and expansion strips—even if you dial the coilovers all the way soft. But then, with the coilovers set like that, the car will float like an old Cadillac over bigger dips. And if you dial the coilovers stiffer, ride will be really harsh all the time, and might cause the interior to rattle.

    It's a PRIUS. A versatile non-performance car. There's 134hp under the hood of the GIII. Go for a more reasonable mix of performance, ride, and looks. Keep it clean and not over the top. That's my opinion.

    I'm late to the conversation and feeling too lazy to do research at the moment, but non-stock offset can put additional loads on suspension parts, especially wheel bearings.

    I had 215-55-16 Bridgestone RE-01s on my GII Prius, mounted on Touring wheels I bought secondhand. The tires barely rubbed on the inside fender well liner up front when the suspension deflected fully (tires pointed straight ahead), gradually wearing a hole through the liner. The excess unsprung weight also overwhelmed the TRD Sportivo suspension parts I'd added.

    It wasn't a particularly pleasing combination, to be honest with you. And the mileage hit was 6-9mpg. I'm definitely not a hypermiler, and I was getting mid-high 30s in town and best case mid 40s on the freeway, milking it for mileage with a tailwind. In my opinion, not worth it overall given the still limited performance capabilities of the car.

    But perhaps you'll have better luck.
     
  7. Griz

    Griz New Member

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    What size tire? Looks good! Thx
     
  8. TruSound

    TruSound Member

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    OK...now I'm just confused. If an aftermarket wheel/tire set is the same overall diameter as stock and lets say 2 pounds lighter than stock how would that effect mileage ?

    Seems like you'd get at least the same mileage, and slightly better suspension performance with less unsprung weight.

    I'm considering a set of 17" wheels for my v Three, the v Five comes with 17" wheels I believe, does the Five loose MPG with it's bigger diameter wheels ?
     
  9. F8L

    F8L Protecting Habitat & AG Lands

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    It doesn't work that way unfortunately. Do a search on the subject. There is quite of bit of information in here. :) Or look at my Fuelly reports below.
     
  10. NineScorpions

    NineScorpions Economy, Meet Style!!

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    I love the wheels, mpg, and size conversation cause it never ends :D

    This is my second car with 40 series tires and have yet to have an issue. I think the correct way to word it is that your susceptibility to tire and wheel issues due to road hazards goes up with a lower series tire. However they are not the devil. Just like lowering the car...the owner has to take obvious precautions according to the upgrade applied.

    Supercharged has pointed out the need to marry tires and wheels accordingly as you go up in size for multiple reasons including reducing the risk of rubbing.

    I have 18" rims with 40 series tires and my speedometer is spot on and my tires do not rub even with the lowering kit.
     
  11. Royal5280

    Royal5280 New Member

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    Can we see some CT200 wheels? I am thinking they will actually be hitting the used market quickly. I am seeing CT200's EVERYWHERE (except my garage). Did they only offer 17's?
     
  12. Here are the CT wheels on Blinkn09's car.

    [​IMG]
     
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  13. AZGeek

    AZGeek Semi-informed Member

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    Is it not possible to get some aftermarket rims with a similar weight to the OEM 17's? Can't you then just slap on similar rubber with similar performance to the OEM tires and get close?

    Yes, I am almost totally naive about this.
     
  14. F8L

    F8L Protecting Habitat & AG Lands

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    Has anyone seen pics of a GenIII with CT200h F Sport Trident wheels on it? Don't ask me why. :)
     
  15. ksimmonsnj

    ksimmonsnj New Member

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    Hey Blinkn09,
    I am thinking about going with the same rims and tire combo as you. I was wondering how your MPG has been since you put the CT rims on your prius and did they effect the overall driving performance. Thanks
     
  16. TruSound

    TruSound Member

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    The wheels off my buddies CT are still for sale if anyone is interested, make an offer and I'll pass it along...taken off the car before it left the lot, zero miles on them.
     
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  17. littlegremlin

    littlegremlin New Member

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    TruSound, I may be interested in that proposition.
    Drop an email to [email protected] yahoo.com (minus the spaces)
    Obviously easier if he was in the midwest.
     
  18. andrew11

    andrew11 New Member

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    Hey guys. Do you know if I need spacers for the Ct200H Wheels on my 2010 Prius? Thanks!
     
  19. F8L

    F8L Protecting Habitat & AG Lands

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    No spacers needed with the CT200h wheels.
     
  20. KeepitSimple

    KeepitSimple Member

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