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E90/E91/E92/E93 (2006 - 2013)
The E9X is the 4th evolution of the BMW 3 series including a highly tuned twin turbo 335i variant pushing out 300hp and 300 ft. lbs. of torque. BMW continues to show that it sets the bar for true driving performance! -- View the E9X Wiki

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  #1  
Old 09-26-2013, 08:51 PM
604_e90 604_e90 is offline
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Location: Vancouver, Canada
 
Join Date: Sep 2013
Posts: 2
Mein Auto: 2006 325I
Can I use 91T rating tires on my e90 (2006 325i base)

Hi everybody, totally new here, recently bought an used 2006 325i here in Canada (Vancouver). It's the 3.0L version.

The front tires are completely done and needs replacing asap.
The rear is pretty much brand new but the ratings of the tires is 91T (General Tire Evertrek RT)

Size is 205/55/16, the stock size of my car.

OEM speed rating is H I believe

Questions?
-is it safe to run T speed rating tires on my car?
-is it legal to run a lower speed rating than OEM (legal/insurance/etc)

What should I do? (..If you were me)
-should I try to match my rear tires and buy another set of T rating tires?
-should I go ahead and buy tow new tires with speed rating for H (oem spec)
-should I ditch the T rating tires and just buy all 4 matching tires with speed rate H

Thanks a lot.
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  #2  
Old 09-27-2013, 06:23 AM
hondo402000 hondo402000 is offline
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Location: Charlotte, NC
 
Join Date: Nov 2012
Posts: 1,600
Mein Auto: 2007-335 HTC
yes you can run lower speed rated tires, they put micro chips in tires now so the cars TPMS will pick up the speed rating and tell the cars computer and it will limit the Max speed to the rating of the tire


haha got ya
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  #3  
Old 09-27-2013, 06:25 AM
Oscar Oscar is offline
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Location: Toronto, Ontario
 
Join Date: Jan 2002
Posts: 235
Mein Auto: 2009 328i
I recommend 4 new tires, H rated, correct load rating, square (same size front and rear) and regular rotations.
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Old 09-27-2013, 06:50 AM
BashedBarrique BashedBarrique is offline
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Location: Carmel Indiana
 
Join Date: Jan 2013
Posts: 720
Mein Auto: 2006 325i
A speed rating of T indicates that the tire is designed to be operated at sustained speeds of no more than 118 mph. Are you planning to drive at sustained speeds higher than 118 mph? If not I wouldn't worry about having T rated tires.

If however you are interested in sports performance then you may want to select a set of tires that is designed to maximize those attributes; lateral grip, stopping distance etc. The tires on the rear of your car are probably designed to provide all weather traction, long tread life and comfort over performance. If those are important to you then you should just get two of the same tires for the front.

I am not well versed in the laws in Canada, but here in the US there are no laws that you must put the OE tires on a car nor would an insurer care what tires you had on the car, so long as they were in good shape and designed to be used on passenger cars of the basic configuration of your car.
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Old 09-27-2013, 11:09 AM
604_e90 604_e90 is offline
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Location: Vancouver, Canada
 
Join Date: Sep 2013
Posts: 2
Mein Auto: 2006 325I
thanks for all the feedbacks/info

im leading toward keeping the new 91T tires

still debating should I get two T rating to match
or get two H rating (and possibly put it on my rear since its a rwd car and put the T rating ones on the front)

as for top speed, Im sure nowhere in canada will let anybody drive over 100mph legally so that 118mph max speed rating of T is fine for me.
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