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lo pro 24.5 vs. tall 24.5 ?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by 2hellandback, Mar 13, 2009.

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  1. Mar 13, 2009 #1
    2hellandback

    2hellandback Heavy Load Member

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    Dec 19, 2007
    Blackfoot Idaho
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    What is the weight difference between 24.5 low pro and 24.5 tall rubber?
     
    2hellandback, Mar 13, 2009
    2hellandback, Mar 13, 2009
    #1
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  3. Mar 14, 2009 #2
    7mouths2feed

    7mouths2feed "Family Man"

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    Nov 29, 2007
    Jacksonville, AR
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    google the tire companies and there should be specs to give you sizes, demensions, and weights

    one I use for cpm calculations is the firestone FD690 PLUS
    which shows about a 6 ounce difference.
     
    7mouths2feed, Mar 14, 2009
    7mouths2feed, Mar 14, 2009
    #2
  4. Mar 14, 2009 #3
    pinebars

    pinebars Bobtail Member

    42
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    Jan 25, 2009
    libertyville il
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    24.5 low pro is the same as a 22.5 tall just on a 24.5 rim and 24.5 are olmost 2in taller then 22.5 or 24.5 low pro
     
    pinebars, Mar 14, 2009
    pinebars, Mar 14, 2009
    #3
  5. Mar 14, 2009 #4
    pinebars

    pinebars Bobtail Member

    42
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    Jan 25, 2009
    libertyville il
    0
    are you trying to cut the weight of you truck by gooing low pro
     
    pinebars, Mar 14, 2009
    pinebars, Mar 14, 2009
    #4
  7. Mar 14, 2009 #5
    2hellandback

    2hellandback Heavy Load Member

    978
    237
    Dec 19, 2007
    Blackfoot Idaho
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    A company im looking at get paid by tonageand the owner said there is 500 lbs diff between 24.5 tall and 24.5 lowpros on the drivers 8tires i kinda thought that way high

    But then i almost drop 150 rpm going tall at the same speed so it becomes the ? Is there a fuel savings with tall rubber or a higher income with LPS and a extra 500lbs cargo
     
    2hellandback, Mar 14, 2009
    2hellandback, Mar 14, 2009
    #5
    landlord Thanks this.
  8. Mar 14, 2009 #6
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    the road less travelled
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    Low pros have lower rolling resistance, but that varies with the construction of the tire; slower rpms at a given speed just means it takes more torque to keep the wheels turning, it probably won't save fuel except really light and bobtail.

    The wide base singles are supposed to have less rolling resistance than the same outside diameter in duals and they save more weight

    I don't think you save much weight going to low pros, but you do lower things a bit including overall height, they should take a little less fuel to do the same job.
     
    25(2)+2, Mar 14, 2009
    25(2)+2, Mar 14, 2009
    #6
    alds Thanks this.
  9. Mar 14, 2009 #7
    7mouths2feed

    7mouths2feed "Family Man"

    1,186
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    Nov 29, 2007
    Jacksonville, AR
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    He may be calculating the weight of the rims from 22.5 to 24 and steel VS aluminum. I never thought of it but I will research wheel weights.

    However your RPM change between 24 tall and 24 LP can only be about 82 rpm by mathmatical calculations and tire weight is only 6 ounces x10 = 60 ounces or 3.75 lbs.

    As to your question I would have to assume that an extra 500 lbs cargo will have a higher pay-out than LP vs Tall since the driver, weather, etc.. will have more effect on MPG's than 82rpm's.


    Further research has revealed Aluminum 22.5 is 56lbs or 560lbs total on the truck, 84lbs for 24.5 steel or 840lbs for the truck giving a difference of 280lbs.
     
    Last edited: Mar 14, 2009
    7mouths2feed, Mar 14, 2009
    7mouths2feed, Mar 14, 2009
    #7
  10. Mar 14, 2009 #8
    25(2)+2

    25(2)+2 Trucker Forum STAFF Staff Member

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    the road less travelled
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    Back to the original post, both sizes mentioned use 24.5 rims, same weight there.

    If they are the same load range, the weight of the tires would be close.
     
    25(2)+2, Mar 14, 2009
    25(2)+2, Mar 14, 2009
    #8
  11. Mar 14, 2009 #9
    7mouths2feed

    7mouths2feed "Family Man"

    1,186
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    Nov 29, 2007
    Jacksonville, AR
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    I agree,, there is only about 6 ounces of difference in the LP vs the Tall. Not nearly the 500lbs his boss claims.
     
    7mouths2feed, Mar 14, 2009
    7mouths2feed, Mar 14, 2009
    #9
  12. Mar 15, 2009 #10
    pinebars

    pinebars Bobtail Member

    42
    12
    Jan 25, 2009
    libertyville il
    0
    the way to shave weight is supper single tires on just the drives you can cut olmost #900
     
    pinebars, Mar 15, 2009
    pinebars, Mar 15, 2009
    #10
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