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Thread: Tyre problem

  1. #1
    orrstruck Guest

    Tyre problem

    Hi to you all from ken down in tassie,I am not new to land rovers as I have had numerous series rovers but Iam new to discovery's,So do 31 by 10.5 fit a discovery ore am I better of sticking to 30 by 9.5.
    Cheers Ken
    PS.series 1 93 V8i

  2. #2
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    As long as they are not too wide they should be fine, 245/75/16 seem to be a good size for disco's.
    MY08 TDV6 SE D3- permagrin ooh yeah
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  3. #3
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    A 31x10.5x15 is equivalent to a 265 75 15.
    Hope that bit of info helps, but it doesn't answer your question though.
    Last edited by Ralf_the_RR; 11th September 2006 at 07:45 PM.

  4. #4
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    Standard rims on Discos are 16" so we are presuming you have some aftermarket 15" rims to put those tyres on ?

    31 X 10.5 R15 should be OK. However, some trimming will probably be required at the rear fender /guard area.

  5. #5
    orrstruck Guest

    sorry

    I forgot to add they will be going on 15 by 8 rims
    Cheers Ken

  6. #6
    dragonwagon Guest
    I run 31x10.5 x 15 Sumitomo M/Ts on 15x7 sunraysia rims. Rear guards required trimming & still touch in the rough stuff.( I have a 50mm lift & no rear sway bar.) Front guards are ok but front bumper may need trimming( or fit a bullbar )

    As a side benefit the ride is greatly improved with the big tyres on.

    Greg

  7. #7
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    On a Disco 1 The biggest 16 inch tyre you can fit is a 245.75x16 which is the same diameter as a 31x10.5x15 ( about 30.5 inchs or 6% increase over OE) but a little narrower.You may have to trim a triangle from the bottom of the rear guard at the back.
    These fiit well on standard wheels and have and most have a legal load rating.

    A 30x9.5 x15 is the same diameter as a 205x16 OE tyre but quite a bit wider so you will lose steering lock..

    Watch the load rating on any 15 inch Flotation tyre as many have too low a rating for a Disco so are illegal, and also arguably more prone to punctures.
    I do not know in this day and age why anyone would put 15 inch tyres on a Disco. IMHO Rovers better suit narrow tyres and the Rangies I have driven on 15s felt vague and "squishy" to drive .
    Their only benefit is that they are cheap.
    Regard s Philip A

  8. #8
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    Quote Originally Posted by PhilipA
    On a Disco 1 The biggest 16 inch tyre you can fit is a 245.75x16 which is the same diameter as a 31x10.5x15 ( about 30.5 inchs or 6% increase over OE) but a little narrower.You may have to trim a triangle from the bottom of the rear guard at the back.
    These fiit well on standard wheels and have and most have a legal load rating.
    I once put side by side a 31 X 10.5 BFG MT on a 15 " rim and a 245/75 BFG MT on 16" rim. The 31X 10.5 R15 wheel and tyre appeared a good bit taller than the 245/75 R16. ( diddn't measure but I would say at least half an inch. )

    How say you on that ?
    Last edited by waynep; 12th September 2006 at 11:43 AM.

  9. #9
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    i have 30x9.5x15 on my disco 1 on cheviot turbo mags and have not suffered any loss of steering lock, must be the offset of the mags i suppose. I didnt have to alter a thing. they just barely rub the front mudflaps on the way thru to full lock.

    personally i think the vehicle rides way better now than it ever did before with std steels and std tyre sizes etc etc. the extra half inch of rubber makes a big difference to ride and seems to have lowered road noise a bit as well but i am quite deaf so it may have moved to a freg i dont hear :P

    still working on the best tyre pressures for this and that but i have to say i am way happy with the new setup.
    2007 Discovery 3 SE7 TDV6 2.7
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