255/50/20 to 275/45/20 will the ride be the same - Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum



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Go Back   Chevy TrailBlazer, TrailBlazer SS and GMC Envoy Forum > 2006 - 2009 TrailBlazer SS Tech > 06-09 SS Brakes, Suspension, Wheels and Tires > Tires

Tires Tires on your TrailBlazer SS

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  #1  
Old 03-30-2009, 12:37 PM
bhobbs bhobbs is offline
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255/50/20 to 275/45/20 will the ride be the same

If I change the tires from 255/50/20 to 275/45/20 will the ride be as smooth or will it be rougher with the same tire?
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  #2  
Old 03-30-2009, 09:01 PM
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While I can't compare those two sizes I can tell you that my Hankook 275/45/20 tires ride just as smooth as the original tires, Michelin 245/65/17.
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Old 04-02-2009, 12:23 PM
BPT_C20 BPT_C20 is offline
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The ride is rougher, but it is barely noticeable. If you are worried about it then just get 265/50R20's and the problem is nonexistant
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Old 04-02-2009, 01:50 PM
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255 50 is a 5.0inch sidewall 30.0 inch diameter
275 45 is a 4.9inch sidewall 29.7 inch diameter

So your speedo will be 1% to fast if it says 60 your going 59.4

http://www.miata.net/garage/tirecalc.html
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Old 04-02-2009, 01:54 PM
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My Hankooks at 275/45-20 ride on par with the Michelin 245/65-17s, but are MUCH quieter. My 20s had [email protected] tires originally and they were harsher, noisy and scary as hell on a cold wet road. The ride, noise and grip are more a factor of the individual tire than the sizing. Some 275/45 will ride worse than your current 255/50s, other will ride better.
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Old 04-02-2009, 01:55 PM
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They ride about the same, but It depend on tire Construction.

The Stock Goodyear 255/50/20 on the Trailblazer SS are a bit soft, but ride nice. I have had 275/45/20 Hankook and loved them.. I really hated the 275/45/20 Kumhos.. They where noisy as hell on the highway,

A few members are running 265/50/20 Hankooks and they ride great.

I am running 265/40/22 Hankooks and love them. They are quiet and smooth.
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Old 09-12-2012, 06:42 PM
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I was shocked by*your information.*Thank you!*very interesting!
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Old 12-27-2012, 04:12 PM
Larringt Larringt is offline
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Can I use the same wheel

Can I use the 275/45/20's on the stock SS wheels?
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Old 12-27-2012, 07:01 PM
gemsheba gemsheba is offline
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Quote:
Originally Posted by Larringt View Post
Can I use the 275/45/20's on the stock SS wheels?
Yes, go with the Hankook and you will be happy.
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