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E39 (1997 - 2003)
The BMW 5-Series (E39 chassis) was introduced in the United States as a 1997 model year car and lasted until the 2004 when the E60 chassis was released. The United States saw several variations including the 525i, 528i, 530i and 540i. -- View the E39 Wiki

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  #1  
Old 03-27-2009, 10:39 AM
330blast 330blast is offline
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What is road force balance?

Hi there,

I have read a number of threads mentioning "road force balance". Is this a special type of balancing machine comparing to those used by normal tire shops?

I notice a very minor vibration, and my tires are hitting the tread life mark. So I put on a set of new tires (at America's tire, who has been balancing my car for several years with the same type of tires). Had the car aligned at a BMW dealer. The vibration is still there.

I am wondering if I need to take it to some other shop that can do "road force balance".

Thanks.
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  #2  
Old 03-27-2009, 10:53 AM
armysweitzer armysweitzer is offline
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simulates driving conditions vs just standard balance i believe.

very recommended, i think you can Google what shops have the machines in your area.
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  #3  
Old 03-27-2009, 11:03 AM
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mmm635 mmm635 is offline
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Quote:
Originally Posted by 330blast View Post
Hi there,

I have read a number of threads mentioning "road force balance". Is this a special type of balancing machine comparing to those used by normal tire shops?

I notice a very minor vibration, and my tires are hitting the tread life mark. So I put on a set of new tires (at America's tire, who has been balancing my car for several years with the same type of tires). Had the car aligned at a BMW dealer. The vibration is still there.

I am wondering if I need to take it to some other shop that can do "road force balance".

Thanks.
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  #4  
Old 03-27-2009, 11:49 AM
SoCaLE39 SoCaLE39 is offline
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I used to use this a Hunter Road Force machine for 3 years and let me tell you, that machine will pickup a lot more than your traditional balancer. In fact it will also tell you to rotate the tire on the wheel if its off balance too much. For a BMW ALWAYS DO ROAD FORCE! The road force balancer is definitely more accurate.
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Old 03-27-2009, 12:30 PM
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Fulltone74 Fulltone74 is offline
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IIRC --
The road force machine also detects side to side wobbling in addition to vertical vibrations.

So the tech can know whether the weights should be on the inside, middle, or outside edge of the wheel.

Doing this also eliminates the directional pull of the tire, in addition to eliminating vibration.

The road force machine puts a roller on the tire with 750 pounds of force.
Which is somewhat close to the weight that will actually be on the tire.

Road force is so much more accurate....
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  #6  
Old 03-27-2009, 02:18 PM
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chivas chivas is offline
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there's a local shop by me that no longer uses roadforce but laser. let me tell ya.. this thing is spot on.
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  #7  
Old 03-13-2014, 04:28 PM
mjbennett9 mjbennett9 is offline
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I too have heard about this "road force" but ignored as I just assumed it was slang for a balance. I just had my car balance and they did a crappy job. Didn't inflate tires to spec I asked for (infact, they deflated and gave to me 26PSI all around), then they didn't rotate correcty, and put the two best tires on the passenger side. All are good, but two were better. Then they stacked weights like crazy. I should know better than NTB pumping them out at $20 a car

I just called around and there's a TON around me. I called the first place and booked an appt. for Sunday. Getting all four done for $40. Might be a good price, might not, but I'd like to at least know I didn't skimp.

Last edited by mjbennett9; 03-13-2014 at 04:32 PM.
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Old 03-13-2014, 09:06 PM
dckr dckr is offline
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Quote:
Originally Posted by mjbennett9 View Post
I too have heard about this "road force" but ignored as I just assumed it was slang for a balance. I just had my car balance and they did a crappy job. Didn't inflate tires to spec I asked for (infact, they deflated and gave to me 26PSI all around), then they didn't rotate correcty, and put the two best tires on the passenger side. All are good, but two were better. Then they stacked weights like crazy. I should know better than NTB pumping them out at $20 a car

I just called around and there's a TON around me. I called the first place and booked an appt. for Sunday. Getting all four done for $40. Might be a good price, might not, but I'd like to at least know I didn't skimp.

yeah, i would avoid NTB at all costs.
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