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Thread: All about wheel size???

  1. 4th June 2007, 09:03 AM #1
    mike_beecham
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    All about wheel size???

    Lads,

    Am about to bite the bullet - l am sick of sliding around on A/T's. The BFG Mud are looking like goers for me.

    Question - are 33/10.5 R15 Muds ok to run with the Defender. I get the height back from not having the 16''...would go with 16's but only have the factory wheels or a set of Rangie wheels (the old ones), and don't think l can get a wide enough wheel on these rims? Yeah?

    I am currently running 31/10.5 R15 A/T's and they seem to be fine in terms of gearing etc, just not tall enough!


    Thoughts?


    Mike
    2011 DEFENDER 130
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  2. 4th June 2007, 09:07 AM #2
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    incisor
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    watching with interest.. i got quoted 275 on this size.
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
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  3. 4th June 2007, 09:17 AM #3
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    isnt standard diameter for fenders 32inches? I would have thought 33 would be fine but the gearing will be slightly knocked out so you loose highway puff to pull up steep hills. Is it a TD5 or a Tdi fender, the TD5 will notice it less than the Tdi, when i put inch over size tyres on the disco the Tdi doesnt like it. Matt
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  4. 4th June 2007, 09:22 AM #4
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    235/85/16 and 750R16 = 31"

    devil's advocate hat on....

    235/85x16 are marginaly smaller than 32 inches and are not within the rim or tyre manufacturers recommended rim width spec so may affect your insurance if you are involved in an incident....

    7.50R16
    235/85x16
    33x10.5x15

    Section Width: 7.51 in 191 mm
    Section Width: 9.25 in 235 mm
    Section Width: 10.51 in 267 mm

    Rim Diameter: 16 in 406.4 mm
    Rim Diameter: 16 in 406.4 mm
    Rim Diameter: 15 in 381 mm

    Rim Width Range: 5.5 - 7 in
    Rim Width Range: 6 - 7 in
    Rim Width Range: 7 - 9 in

    Overall Diameter: 31.64 in 803.65 mm
    Overall Diameter: 31.72 in 805.68 mm
    Overall Diameter: 33.08 in 840.23 mm

    Sidewall Height: 7.82 in 198.62 mm
    Sidewall Height: 7.86 in 199.64 mm
    Sidewall Height: 9.04 in 229.61 mm

    Radius: 15.82 in 401.82 mm
    Radius: 15.86 in 402.84 mm
    Radius: 16.54 in 420.11 mm

    Circumference: 99.39 in 2524.5 mm
    Circumference: 99.65 in 2531.1 mm
    Circumference: 103.9 in 2639.0 mm

    Revs per Mile: 657.3
    Revs per Mile: 655.7
    Revs per Mile: 628.7

    Actual Speed: 60 mph 100 km/h
    Speedometer1: 59.8 mph 99.7 km/h
    Speedometer1: 57.3 mph 95.6 km/h

    Speedometer Difference: -
    Speedometer Difference: 0.244% too slow
    Speedometer Difference: 4.549% too slow

    Diameter Difference: -
    Diameter Difference: 0.26%
    Diameter Difference: 4.36%

    but a few guys run 33's on tdi's i hear, the clearance on unlifted suspension is the ? at hand...

    but the bigger ? is whether the brakes will cope okay as it is a better than 3% increase ....
    Last edited by incisor; 4th June 2007 at 09:27 AM.
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius
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  5. 4th June 2007, 09:45 AM #5
    mike_beecham
    mike_beecham is offline Master Supporter
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    Yeah 200TDi....
    2011 DEFENDER 130
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  6. 4th June 2007, 10:57 AM #6
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    Greylandy
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    Up can go up to 33" on stock suspension, basically have three options:

    235/85
    265/75
    255/85

    255/85 is the highest you can go but works well on the fender.
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  7. 4th June 2007, 12:43 PM #7
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    Landy110
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    I'm running disco rims on my defender so I can go tubeless, got sick of flat tyres! I have BFG Muddies size 265/75R16 which are 33's I believe.
    I had to adjust the steering stops and lost a little bit of turning circle but no other problems. I have standard suspension. As for gearing and up hill pull, well..........it is a Land Rover. There might be a little difference but not a lot. You won't curse the tyres for the loss of power.
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  8. 4th June 2007, 12:47 PM #8
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    Quote Originally Posted by Stephen Price View Post
    You won't curse the tyres for the loss of power.
    excellent.....
    2007 Discovery 3 SE7 TDV6 2.7
    2012 SZ Territory TX 2.7 TDCi

    "Make the lie big, make it simple, keep saying it, and eventually they will believe it." -- a warning from Adolf Hitler
    "If you don't have a sense of humour, you probably don't have any sense at all!" -- a wise observation by someone else
    'If everyone colludes in believing that war is the norm, nobody will recognize the imperative of peace." -- Anne Deveson
    “What you leave behind is not what is engraved in stone monuments, but what is woven into the lives of others.” - Pericles
    "We can ignore reality, but we cannot ignore the consequences of ignoring reality.” – Ayn Rand
    "The happiness of your life depends upon the quality of your thoughts." Marcus Aurelius
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  9. 4th June 2007, 06:29 PM #9
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    LRHybrid100
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    255 / 85 x 16 BFG MTs go well on Defenders with Disco rims

    LRH
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