Tire Wear?

[gmtech]

DOES ANYBODY ELSE HAVE REAR TIRE WEAR IN MIDDLE OF TIRE
MINE ARE COMPLETELY WORN IN MIDDLE AND GIVING ME BAD NOISE
CAR HAS 53000 MILES GOING TO REPLACE TIRES SOON JUST WANTED TO KNOW IF ANY ONE KNEW WHAT CAUSES THIS??:confused:

[Marauderjack]

BF Goodrich!!!!!:eek: :shake:

[Bill Lalk]

Actually, I feel the tires a a wee bit too wide for the rims. Notice how the sidewalls bend in slightly at the rim, but the fronts slightly out. Just my .02.

[jawz101]

The KDWS had probs with this. Mine did the same thing & others have mentioned it on the forum in the past.

Supposedly the KDWS2 is better. Right now I have Toyo ST Proxes. They're ok. Wider but not as tall... I miss that because traction control messes up now (also known issue with rears that aren't a little larger than fronts).

If I got rears again right now I'd go with the KDWS2 in the stock size or find something just as tall as OEM and a little wider.

These points should be things to consider in future tire purchases.

[whoskal]

It's the BF's, I am on my third set of rears....I am going with a different brand next time

[gmtech]

The KDWS had probs with this. Mine did the same thing & others have mentioned it on the forum in the past.

Supposedly the KDWS2 is better. Right now I have Toyo ST Proxes. They're ok. Wider but not as tall... I miss that because traction control messes up now (also known issue with rears that aren't a little larger than fronts).

If I got rears again right now I'd go with the KDWS2 in the stock size or find something just as tall as OEM and a little wider.

These points should be things to consider in future tire purchases.


THANX FOR YOUR INPUT ILL BE SURE TO GET THE KDWS2'S

[whoskal]

THANX FOR YOUR INPUT ILL BE SURE TO GET THE KDWS2'S

Cool, but why are you always yelling;)

[Ken]

DOES ANYBODY ELSE HAVE REAR TIRE WEAR IN MIDDLE OF TIRE
MINE ARE COMPLETELY WORN IN MIDDLE AND GIVING ME BAD NOISE
CAR HAS 53000 MILES GOING TO REPLACE TIRES SOON JUST WANTED TO KNOW IF ANY ONE KNEW WHAT CAUSES THIS??:confused:I'd be thrilled with that mileage. These aren't 53000 mile tires. I'll need to replace mine with 18000 miles. :rolleyes: Although, the burnout that I did last night may be a reason why:confused: I left more rubber than I did in Seymour:D I drove about 6 miles home and the garage still reeks of burnt rubber:rock: Sorry, no video, spur of the moment thing. Gotta go back and get a pic of the evidence. I was amazed at how much rubber that I left. I'm gonna have to get an extra set of tires for displays like that, right Barry?:burnout:

Ken

[The Big Stu]

On the rare chance that it is not a design flaw in the tire like so many have said, it could be improper inflating, but is more likely the tire...I will be getting Goodyear eagle F1's when I replace mine.

[CRUZTAKER]

On the rare chance that it is not a design flaw in the tire like so many have said, it could be improper inflating.....

Nope.;)

We have discussed this issue ever since the first member brought this issue to light.

Most of us average 8,500-18,000 on a set of rears regardless of inflation choices.

It really is odd.

Good luck with the F1's however. And remember, you will now be using all the same size tires.

Choose well young jedi.:P

[Bill Lalk]

I had 29K on my skins before I replaced the rears. I ran them at 28 lbs, fronts at 36+, but I don't do burnouts either.

[carfixer]

The noise you are hearing may be the axles/bearings. When they start to go out, it sounds like a bad tire.
As far as tires, I've never gotten more than 8K miles out of a set of rears and that was before I had enough power to smoke em.

[mmptejas@sbcglo]

r
The KDWS had probs with this. Mine did the same thing & others have mentioned it on the forum in the past.

Supposedly the KDWS2 is better. Right now I have Toyo ST Proxes. They're ok. Wider but not as tall... I miss that because traction control messes up now (also known issue with rears that aren't a little larger than fronts).

If I got rears again right now I'd go with the KDWS2 in the stock size or find something just as tall as OEM and a little wider.

These points should be things to consider in future tire purchases.
try toyo proxes 295 45 18s they are 28 inch tall same as om i have them on mine . also have 3 inch exhaust with 22 inch body flow pros , sounds awsome . working on custom headers at the time. it helps when you work at a muffler shop :) the lowered springs really make for rough ride though.

[Bill Lalk]

I can't believe I am the only guy out there to get over 20K on my rears. I think you all were running too high a pressure. I read a few times here that the optimal pressure should be in the 40 lb range. Obviously that would balloon out the center. Its not rocket science. If I am the only one to get 29K on my BFG's(and I still had tread left but the tires were too noisey because of uneven tread) and ran them under 30, usually around 26 to 28, I'd say there's your answer. Plus, the car feels slightly smoother over bumps, and we could use a little help with this lumber wagon ride we have.

[Bigdogjim]

I got 30,000 off the factory set. Trick is to drop a few lbs. before taking along tip as the tires heat up and expand thus pushing the middle higher.
Since I have '03 300 A car i just put the 245's on the front so I can rotate now:)
If you got 53,000 miles that great!

[duhtroll]

Actually, the consensus among the board vets was that the stock KDWSs have a weak sidewall that allows the center to bow when subjected to highway speeds, such as when the vast majority of miles are highway. It seems to work the opposite of current tire theory, in that people who inflated them to 32-35 got better wear than most who used 26-28. This is what I experienced as well. They wore better at 35 PSI than they did at 28.

Just spend the extra $ and go with the KDW2s - they last longer so you're really getting your money's worth by comparison.


I can't believe I am the only guy out there to get over 20K on my rears. I think you all were running too high a pressure. I read a few times here that the optimal pressure should be in the 40 lb range. Obviously that would balloon out the center. Its not rocket science. If I am the only one to get 29K on my BFG's(and I still had tread left but the tires were too noisey because of uneven tread) and ran them under 30, usually around 26 to 28, I'd say there's your answer. Plus, the car feels slightly smoother over bumps, and we could use a little help with this lumber wagon ride we have.

[SID210SA]

I can't believe I am the only guy out there to get over 20K on my rears. I think you all were running too high a pressure. I read a few times here that the optimal pressure should be in the 40 lb range. Obviously that would balloon out the center. Its not rocket science. If I am the only one to get 29K on my BFG's(and I still had tread left but the tires were too noisey because of uneven tread) and ran them under 30, usually around 26 to 28, I'd say there's your answer. Plus, the car feels slightly smoother over bumps, and we could use a little help with this lumber wagon ride we have.

Not the only one....I currently have 38,385 miles on my Marauder and I still have the original set of rears on......I raised my pressure to 38 psi in the rears after I replaced the fronts for inner tire wear. That seemed to stop the wear dead in its tracks.....I hope to get another 2 or 3 k out of those rears. I have my new set waiting in my climate controlled storage unit.

[crouse]

See attached screen dump from the BFG web site. Start reading about half way down the page.

[duhtroll]

Exactly - thanks for this!


See attached screen dump from the BFG web site. Start reading about half way down the page.

[LordVader]

I got 23K out of the rears and 26K out of the fronts. I did take that suggestion to add some pressure (36 lbs) and that slowed down the wear issue.

[crouse]

I'm on my 3rd set of rears and I've only got 38,000 miles on my MM. Both prior sets of rears had the center wear problem eventhough I kept the pressure at what was printed on the door sticker. About one year ago I spent a lot of time on the phone with BFGoodrich regarding the tire wear issue. I finally got them to reimburse me 75% of the price of a new set of rear tires. My point to them was that I kept the pressure at what the door sticker read. I now run 40 psi in the rears and 35 psi in the front. So far the higher pressure seems to have helped. I don't think this tire wear is related to highway driving because I drive about 25 miles per day on a slow two lane highway. On a good day I might hit 50 mph.

[Dragcity]

I just put on my third set at 36,000. So, about 18,000 per....

I inflated to 38 psi., but find they spin a bit to easy.... I usually run at 34 psi.

I do accelerate hard, so I know the drill.

The middle wore out of my first set at 14K while inflated to 26 psi...

I think its a combination of tire compound and design...

[Bluerauder]

I can't believe I am the only guy out there to get over 20K on my rears.
I got 21,000 on my first set of rears and 34,000 on the fronts. Current rears have 16,000 on them. Looks like they'll be due for replacement at the 21K point again. I am running 38 psi rears and 35 psi fronts. That seems to be the current wisdom here on the MM.Net to address the center wear issue.

Door sticker on '03 MMs says 32 psi all around. That was adjusted up to 35 psi for the '04 MMs -- same tires, same rims.

Bill -- 28 psi sure seems way too low. I'd be concerned of sidewall and tire overheating on longer trips. Be careful out there.

[Bill Lalk]

I certainly could be wrong and I am the first to admit it, but the lower pressure sure seems to work for me. It actually seems like the front tires, at almost 10 lbs higher, have more sidewall buldge than the rears. I suppose you guys talked me into a couple more lbs in the rear...........but thats it now:nono:

[Digital Man]

If going with the KDWS2 what are the size recommendations to ensure TC and Speedo remain acturate?

[ckadiddle]

If going with the KDWS2 what are the size recommendations to ensure TC and Speedo remain acturate?
Same as OEM size on the fronts, 255/55 for the rear if you get KDW2s. This combo does not upset the traction control. I still haven't gotten around to adjusting the speedo. I called Dennis Reinhart and asked him what I needed to set the revolutions per mile to with my xcal2 to correct the speedo. I wrote it down around here somewhere.....:confused: The size difference on the rear tires is pretty small, so I think the speedo inaccuracy is relatively minor.

Where are ya located?
NOTE: KDW2s are intended for dry and wet conditions, but definitely NOT snow.
KDWS = Key feature Dry Wet Snow - this is the OEM type tire.
KDW2 a.k.a. KDWNT by some vendors= Key feature Dry Wet, 2nd design (New Tread design)

[Master]

I'm just going to add one more voice (as if it was needed) to chime in and say that the published data for the stock rear tires is incorrect. These tires just don't last at those pressures. As for overinflating causing uneven wear, I really can't say that this is likely. On the race car I ran 225/50/15 RA1s at about 3# above published numbers. Wear was perfect. On a set of Canadian Tire 225/50/15 directionals (non R compound) I ran 10# over. Again, wear was perfect (and the handling vastly improved as well). Every tire is different, so its hard to use a blanket statement like "overinflating causes this or that to happen". It may in one case and not in another. That's why this site is such a great resource. So many people, all trying different things. Eventually, we come up with something that works (not to compare us to a room full of monkeys at typwriters trying to re-invent Shakespeare or anything). Too bad BFG wouldn't just admit the error and re-emburse us all for the extra tires we've had to buy over the years. Long live the Nitto 305's, by the way!
OK. I'm done. Take me out!

[Marauderjack]

OK.....

If you drive on the highway at high speeds (75-80) low rear pressure will allow the rears to sling out (centrifugal force) and run on the centers!! I got about 9K miles on my first set using conventional wisdom and 24 PSI!!!:confused: Perhaps if you only ride around town at lower speeds the lower pressure will serve you better??;)

Second set with 40 PSI went 32K but only because I swapped them side to side every 5K miles....the right one wears much faster than the left!!:argue:

I have said it many times before.....THE OEM BFG REAR's ARE CRAPPY TIRES AND ONLY MADE FOR THE MM.......Thus backorders and frustrated owners!! Do yourself a favor and go to Nittos, Pirelli's, or anything else and forget about the wear issues!!:D

I currently have 40K miles on my Nitto fronts and....yes they are wearing on the insides but will probably go 50-60K......Time to change anyway!!


Observations from:

Marauderjack:D :D :burnout:

[Digital Man]

Where are ya located?
NOTE: KDW2s are intended for dry and wet conditions, but definitely NOT snow.
KDWS = Key feature Dry Wet Snow - this is the OEM type tire.
KDW2 a.k.a. KDWNT by some vendors= Key feature Dry Wet, 2nd design (New Tread design)

I am in Ontario but I do have Winter tires. However, I tend to drive them into November and like to put the summers on by April. The price on Tire Rack for the OEs is hard to turn down. I can't even get them in Canada for that price.:depress:

[Master]

Hey digital man, I hear ya! I buy two fronts or rears from the Tire rack and even after shipping, exchange, etc. Its about half the price. Sad, eh? And we have all the Michelin plants right here in Nova Scotia :(

[gmtech]

Same as OEM size on the fronts, 255/55 for the rear if you get KDW2s. This combo does not upset the traction control. I still haven't gotten around to adjusting the speedo. I called Dennis Reinhart and asked him what I needed to set the revolutions per mile to with my xcal2 to correct the speedo. I wrote it down around here somewhere.....:confused: The size difference on the rear tires is pretty small, so I think the speedo inaccuracy is relatively minor.

Where are ya located?
NOTE: KDW2s are intended for dry and wet conditions, but definitely NOT snow.
KDWS = Key feature Dry Wet Snow - this is the OEM type tire.
KDW2 a.k.a. KDWNT by some vendors= Key feature Dry Wet, 2nd design (New Tread design)




can anyone show me a pic if 255/55 on rear?

[Loco1234]

whats ur suggestion for snow tires...?

[carguy]

Hello Tenn. Yea they all seem to wear in the middle (BFG Tires) I call BFG they said put 40lbs of air in the rear tires. Still wears, now I just went to 30lbs I have a gauge to check the next 4 to 6 weeks I'll let you know how it goes Call me if you like 239-910-0071 Cheers from florida

[ckadiddle]

can anyone show me a pic if 255/55 on rear?
Here's mine:
http://i46.photobucket.com/albums/f129/ckadiddle/100_0458.jpg
http://i46.photobucket.com/albums/f129/ckadiddle/100_0457smaller.jpg
http://i46.photobucket.com/albums/f129/ckadiddle/100_0454edited.jpg

[ckadiddle]

Hello Tenn. Yea they all seem to wear in the middle (BFG Tires) I call BFG they said put 40lbs of air in the rear tires. Still wears, now I just went to 30lbs I have a gauge to check the next 4 to 6 weeks I'll let you know how it goes Call me if you like 239-910-0071 Cheers from florida
Where in FL are ya, carguy?

[Ken]

ckadiddle

How do you like the tires for handling? Any other opinions?

Ken