MT 28x12.5x15 ET Street Radial

[Born To Run]

Will these fit properly on my car/ rim clearing the shock & not rubbing the fender.
I have Weld RTs 15x10 rims with 6.5" backspace.Stock rearend,stock suspension stock brakes.I have installed rear swaybar relo brackets.
These rims I have use to run MT ET Drags 28x10.5x15 with no issue.
Any advice would be greatly appreciated.
Need info ASAP.

 

[PNR Welding]

Randy you will need to get the sway bar relocation to fit the 15" rims.
I ran a 28-13.5-15 tire on there stock with no issue.
You will be good with a 28-12.5-15.

A 325-50-15 that a lot of people run is also equivilant to a 28-13.5-15 and same as a 28-10.5-15w.

 

[Scott]

Randy with a 6.5" backspace I am pretty sure these will stick out beyond the fender line significantly.

 

[Born To Run]

Tires

Randy you will need to get the sway bar relocation to fit the 15" rims.
I ran a 28-13.5-15 tire on there stock with no issue.
You will be good with a 28-12.5-15.

A 325-50-15 that a lot of people run is also equivilant to a 28-13.5-15 and same as a 28-10.5-15w.

Ok thanks Paul

 

[Born To Run]

Tires

Randy with a 6.5" backspace I am pretty sure these will stick out beyond the fender line significantly.

Hi Scott,I ran a 28x10.5x15 MT ET Drag with this same rim & soft shock settings & had no problems.If we look on on MT website my proposed 28x12.5x15 ET Street Radial has very near the same section width & specs.I am not familiar with street radials.I just don't want to have the tire contact the fender or shock on a hard launch.
What tire are you using?

 

[Scott]

Hi Scott,I ran a 28x10.5x15 MT ET Drag with this same rim & soft shock settings & had no problems.If we look on on MT website my proposed 28x12.5x15 ET Street Radial has very near the same section width & specs.I am not familiar with street radials.I just don't want to have the tire contact the fender or shock on a hard launch.
What tire are you using?

Randy, with 15" Race Stars, 7.5" BS and 325/50/15's the tires stick out beyond the fender line so I expected it would be worse with your 6.5" BS. I just narrowed a housing 1" per side to tuck the drag radials in. In hind sight 3/4" per side would have been perfect.

 

[Born To Run]

Tires

Randy, with 15" Race Stars, 7.5" BS and 325/50/15's the tires stick out beyond the fender line so I expected it would be worse with your 6.5" BS. I just narrowed a housing 1" per side to tuck the drag radials in. In hind sight 3/4" per side would have been perfect.

Here is info from MT website
I want to run a MT ET street radial 28x12.5x15
Approved rim 8.5-10"
Section width 12"
Tread width 10.9

I use to run MT ET Drag 28x10.5x15 with no issues at 10.75 psi.
Approved rim 10"
Section width 12.5"
Tread width10.9

I just want to make sure fender or shock contact will not be an issue.
Based on this info I think I am ok,but I have no ET street radial experience.
Your thoughts??

 

[Born To Run]

Tires e

Here is info from MT website
I want to run a MT ET street radial 28x12.5x15
Approved rim 8.5-10"
Section width 12"
Tread width 10.9

I use to run MT ET Drag 28x10.5x15 with no issues at 10.75 psi.
Approved rim 10"
Section width 12.5"
Tread width10.9

I just want to make sure fender or shock contact will not be an issue.
Based on this info I think I am ok,but I have no ET street radial experience.
Your thoughts??

Got them,they fit with no issues FYI.

 

[PNR Welding]

Randy glad they fit, do they sit inside?

 

[Born To Run]

Tires

Randy glad they fit, do they sit inside?

Yes,they do.When up on the lift they are very close to the shock FYI.
I am going to the track tonight for T&T & will see how they work,hook,etc.

 

[Speedboosted]

How did these tires end up working for you? Looking to fit a 325/50 on a 15x10 Racestar with 6.5" backspacing...worried about them fitting inside the wheel well

 

[Scott]

Any pictures Randy?

 

[Scott]

How did these tires end up working for you? Looking to fit a 325/50 on a 15x10 Racestar with 6.5" backspacing...worried about them fitting inside the wheel well

325/50 15's on 10" Race Stars:



325/50 15's on 10" Race Stars with axle shortened 1" per side. (using 1/4" spacers until I can move the upper shock mount in about 1/2") Also aired out, not at ride height.

 

[Speedboosted]

325/50 15's on 10" Race Stars:



325/50 15's on 10" Race Stars with axle shortened 1" per side. (using 1/4" spacers until I can move the upper shock mount in about 1/2") Also aired out, not at ride height.

Same 6.5" backspacing? I order ones with 7.25" backspacing along with the 325 Hoosier's. I guess we'll see in a few days. Car looks amazing by the way

 

[Scott]

Thanks!

Sorry, should have noted it, my 15 x 10's are 7.25" BS.