I think this will apply to everyone, and it might get moved. My really good friend that is my tire guy sold me some tires for my 02 Bonneville SLE with the 5 spokes(235/55/17). He talked me into a 225/60/17 due to a cheaper price, and that I did not really need the high speed rating. He has the exact same Bonneville as me, and said that he was going to run them as well. He has been in the tire industry for 10 years. I am wondering your thoughts on this. I have ready previous post by Andrew(Harofreak00) that is will affect my speedo based on percentages. I have yet to put the tires on, and I am getting ready to replace the front suspension. What will this all affect, and will there be any dramatic differences(handling, speedo, etc)? Thanks for your valuable input.

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2009 Ford Flex 63K[/u] My DD & super utilitarian vehicle that we call the White Bus.
2006 Honda Accord EX V6 Coupe 73k; Wife's hot rod & highway ride.
SOLD: 2002 Bonneville SLE; 230K, Mods: Solid hockey puck front mount, Intense FWI intake, 180 degree thermostat, Magna Flow high-flow cat, ZZP O2 emulator: Nothing major but maintenance and what it takes to keep the dash lights off and the mileage up..
2004 Bonneville SLE 201k, Pearl White (Old man's ride)

At 60mph, your speed will read 59mph... not a huge deal. Thats the only difference you will notice.

My blue 2000 had 225's on it when I bought it, and the silver one I just bought also has 225's

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Andrew - owner/operator of Bonnevilles Unlimited

2004 Bonneville GXP | 60k | White Gold Tricoat | custom built supercharged 3800 hot rod | garage queen
1997 Corvette | 55k | Silver Metallic | Z06 wheels | Date-night Hauler/Parts runner
2014 Town & Country Limited | Cashmere Pearl | 95k | Family Hauler
2002 Ram 1500 Quad Cab Sport | Black| 260k | Official Bonneville Hauler

You'll have a little better snow and ice traction, and the narrower tire might tend to follow ruts a little more. I like the 235's, just because I have traction issues as it is, lol.

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Bye Bye:

RIP sandrock

Really. I was worried that it would be worse and I was out $430. It seemed like a huge difference.

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2009 Ford Flex 63K[/u] My DD & super utilitarian vehicle that we call the White Bus.
2006 Honda Accord EX V6 Coupe 73k; Wife's hot rod & highway ride.
SOLD: 2002 Bonneville SLE; 230K, Mods: Solid hockey puck front mount, Intense FWI intake, 180 degree thermostat, Magna Flow high-flow cat, ZZP O2 emulator: Nothing major but maintenance and what it takes to keep the dash lights off and the mileage up..
2004 Bonneville SLE 201k, Pearl White (Old man's ride)

It's only 1 cm of width. 22.5 cm vs 23.5 cm wide. Not a huge difference.

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Bye Bye:

RIP sandrock

Speed rating doesn't matter for you.

I've found that grip levels matter more to following ruts than anything else. Brand new STICKY 245 summer tires follow ruts /dips in the road a lot more than my 205 winter rubber. They also have significantly stiffer sidewalls so they dont' deform as much as the winter tires do in ruts.

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Jason Z - Exposed Autos

2001 BMW 330i - Titanium Silver - Sport Package - 3 Pedals - Koni Yellow/H&R Sport
2006 Volkswagen GTI - (gone) Tornado Red - DSG, Stage II~280hp/325tq
1993 Pontiac Bonneville - (gone) Purple Pearl H4U/SLE. Loud