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needs to lower
07Trailblazer SS
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176 Posts
Discussion Starter · #1 ·
Been looking at tires and have a few questions that maybe some of you guys can help with. What are the advantages or disadvantages with going with a different size tore than stock? I know the 265/50's are a little taller and wider but what about the 275/45's? Which offers a better ride, performance, etc. and are there any speedo issues with changing sizes? If we can't get the 20x10 polished reps made soon I'm going to need new tires and can't decide. Here is my truck btw. Stock for now (cutout on the way!)
 

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needs to lower
07Trailblazer SS
Joined
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176 Posts
Discussion Starter · #3 ·
The 275/45 is a little wider and shorter then stock and the 265/50 is a little wider and taller then stock. They both work good on an 8-9" wheel.

For the 10" wheel I like the 295/45/20
I know it boils down to opinion but what looks better on a stock height tbss? I've heard some people on here say the 265 looks too big. I know the lower profile looks sportier to me but also might look wierd if I don't lower. I guess I just need to see some in person lol.
 

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Premium Member
2007 AWD - 3SS TBSS
Joined
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2,617 Posts
265/50's are 30.4 - 30.5 inches tall, 275/45 are 29-29.2 inches tall...

So either 1/2 an inch taller or 1 inch shorter than stock...

The 1/2 inch taller will give you a better ride (softer)...

the 275/45 will be a little wider (better grip)...

these tires are 275/45 but are also 30.5 inches tall (like a hybrid / wierd spec), and inexpensive:

 

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Premium Member
2007 TBSS AWD
Joined
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31,504 Posts
Actually....

275/45/20 is about 29.8" tall
255/50/20 is 30.1" tall
265/50/20 is 30.4" tall ( max height for tbss in front)
295/45/20 is 30.4-30.5" tall.

I would run a 265/50/20 and 295/45/20 at stock height. I run those sizes lowered to 31.5".

Those Atturo's are an oddball tire compared to the other brands in that size. They are cheap as shit though.
 

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Premium Member
2007 AWD - 3SS TBSS
Joined
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2,617 Posts
Yeah I was going from memory, which at 43 already sucks.... I'm an accountant so all I do is remember... (and forget) numbers...

General Grabber HTS are 29" though...
275/45R20
Load Index 110 = 2337lbs (1060kg) per tire
Speed Rating “S” = 112mph (180kph) 110S XL
LRR: Low Rolling ResistanceLow Rolling Resistance Tire Technology Treadwear: 640
Traction: A
Temperature: B640 A B 2337 lbs.
51 psi
12/32"
38 lbs. 8.5-10"
9"
10.7"
9.5"
29"
701
Country of Origin "CZ" = CZECH REPUBLICCZ
 

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needs to lower
07Trailblazer SS
Joined
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176 Posts
Discussion Starter · #7 ·
thanks for the replies guys. If I can get the 20x10's I'm gonna run what lt1z is running but not sure if I can't get those wheels. I'm at 33.5 in the rear and I think just a tad lower in the front.
 

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TBSS N00B
Joined
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431 Posts
Not trying to thread jack... But Im looking at a set of 255-45-20... Are those compatible? My tires are nearly bald, to the point they look like slicks. I really dont have the money for expensive tires. I found those on CL for a reasonable price. I just want to make sure they will fit right on the truck.
 

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Registered
Joined
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826 Posts
Not trying to thread jack... But Im looking at a set of 255-45-20... Are those compatible? My tires are nearly bald, to the point they look like slicks. I really dont have the money for expensive tires. I found those on CL for a reasonable price. I just want to make sure they will fit right on the truck.
Ya, they will fit.. they will just be shorter than stock and youll have more of a gap between the fender and tire.
 

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Premium Member
07 TrailblazerSS Imp
Joined
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9,449 Posts
The Aturros are what I run and they are just as good as the more expensive Grabbers. I have 275-45 20 and they are 30.4" tall, directional and V rated. Best bang for the buck out there. Got mine for a bit over $400 and had them on for 5K...been perfect!
 
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