3 questions for new tires

[clev]

My '09 Rogue has 225/60/17's and it's time for new one's. First, I hate blackwalls and won't buy them-------unless I absolutely, positively, must. I came of age in the muscle car days of the 60's and love Raised White Letter tires; that's all I've ever used on my vehicles after the original's needed replaceing; until now. NO ONE MAKES A 225/60/17 WITH RWL OR OWL! I did find some 225/65/17's with OWL and here's my questions:

(The 225/60's are basically 8.86 inches across the tread with ~5.3 inch sidewalls, making the tire ~27.63 inches tall)

1. The 225/65's are 8.86 across but ~5.8 inch sidewalls, making the tire 28.5 inches tall; ~.86 inches taller than OEM. The OEM tire has ~2 inches clearance all around, but I'm not sure about turns and flexing. Can anyone offer any advice on this larger tire clearance?

2. The 60 will turn 729.9 rev/mile and the 65's will turn 707.7. Will that create problems with main computer or will the speedo just be off a little? Will the computer compensate for the larger tire?

3. I bought the car new, 2.5 years ago. Discount tire tells me the TPMS needs to be rebuilt @~$9.00 each. Do they really need to be rebuilt or is this just another rip off like valve stems?

Thanks for any input.

[clev]

Wow! No replies. Am I the only one who wants RWL tires?

[philipa_240sx]

1. The 225/65's are 8.86 across but ~5.8 inch sidewalls, making the tire 28.5 inches tall; ~.86 inches taller than OEM. The OEM tire has ~2 inches clearance all around, but I'm not sure about turns and flexing. Can anyone offer any advice on this larger tire clearance?

That tire size is a bit on the tall size. The general rule of thumb is anything within 3% of the OEM tire diameter is acceptable without causing issues with the vehicle electronics (VDC, ABS, AWD)

This size is just above the limit at 3.13%. You could likely get away with it, but I do not have first hand experience.

2. The 60 will turn 729.9 rev/mile and the 65's will turn 707.7. Will that create problems with main computer or will the speedo just be off a little? Will the computer compensate for the larger tire?

The speedo, odometer, and other computers WILL NOT compensate for the tire size difference. There is no way to change or calibrate it either (unlike older cars). I cannot say with 100% certainty that the computers won't be affected.

Example: One of our members played with tire pressures once and had a significant difference between front vs. rear tires. The computer showed a error with the VDC system as a result. So we know that if the tire size out significantly, you are going to have problems. The question is how much? This is why I recommend the 3% circumference rule as it seems to be what most mfg's follow.

3. I bought the car new, 2.5 years ago. Discount tire tells me the TPMS needs to be rebuilt @~$9.00 each. Do they really need to be rebuilt or is this just another rip off like valve stems?

I don't think it's a scam. Actually it's advisable to replace all the seals and valve core in the TPMS sensor when changing tires. The correct method of removeing/installing tires requires the removal of the TPMS sensor. Since you have it apart, you might as well replace the seals. Both Nissan and the TPMS sensor mfg recommend doing this.

Assuming this is service Discount Tire is providing, then I would recommend going with it.

[TaiLuu]

It will be ok cause speed is measure in the transmission so work effect it.

[philipa_240sx]

It will be ok cause speed is measure in the transmission so work effect it.

TaiLuu, you are incorrect.

The Rogue DOES NOT have a speed sensor in the transmission. It uses the wheel speed sensors (the same ones used by the ABS system) to determine vehicle speed.

Changing the tire size WILL affect the odometer and speedometer. There is no way to calibrate or correct this.

[clev]

Thanks for the replies and I apologize for my late reply; I've been out of town. I had the tires installed on Friday, 7 October, the day I left. This is my wife's car and she's noticed no difference or problems with the taller tires and there's been no error codes/display on the instrument panel. She says the ride and handling is very good. She's not a speeder and in south Texas there's been no rain to evaluate traction; otherwise she's very satisfied. I've not driven the car, yet, but it looks really good. I'll post pics when I get a chance.

Back to the computer and the speed sensor, I'm trying to get my head around this. With fewer revolutions per mile, does the taller tire make the speedometer fast or slow? I'm thinking it will be a few miles fast; i.e. @ 60, it'll probably be ~57.

[philipa_240sx]

Back to the computer and the speed sensor, I'm trying to get my head around this. With fewer revolutions per mile, does the taller tire make the speedometer fast or slow? I'm thinking it will be a few miles fast; i.e. @ 60, it'll probably be ~57.

Bigger diameter tires = speedo reads slower than actual

In your case, the speedo will read 3.1% SLOWER than the actual speed. ie. At 60mph actual speed, the speedo will indicate 58.1mph.

[clev]

Thanks Phil.

[clev]

This is kinda late, but here's a few pics:

http://i163.photobucket.com/albums/t316 ... P_0588.jpg

http://i163.photobucket.com/albums/t316 ... P_0584.jpg

http://i163.photobucket.com/albums/t316 ... P_0583.jpg

I see other pictures posted by other members, but all I can post is the link to photobucket. How do you post the actual picture?

[casperfun]

Those look great. Funny thing I noticed with my stock 09 Sl tires is that my speedometer says 42 mph while my gamin gps says 40 mph. Keeps me within the limit when I need to be.

So I presume if I get 18 inch tires, my speedometer would be more accurate.