rolling radius

  1. tonybb66

    Advice re new 17" spare wheel replacement tyre size

    Hi All Got a T6 full campervan conversion - I have changed from Claytons with 205/65/16 to 17 "Navis AT 8.5J with 235/65/17 108H tyres, bought a VW steel wheel 7Jx17 with a 215/60/17 tyre on which I want to replace with a tyre to keep the rolling radius the same but when I went into my local...
  2. ashmul

    16's or 17s AT on a 4 motion and new some new rims

    Just moved to a mountain with my T6.1 and experienced a tyre blow out with my 18s with fancy city drive alloy that came with her when I purchased. And of course the previous owner had a 16 in the under carrier, not sure why since its a 4 motion... nightmare day to say the least. Looking to go...
  3. dave_b

    17” swamper setup with correct rolling radius?

    Is it possible to go swamper on 17’s and retain the correct rolling radius? I have 18” sportlines and considering the change to either swamper look or going 20”. I would like to keep the speedo and gearing as near as possible to standard. (102 remapped to 150 with 5sp manual box) Cheers
  4. foggy3061

    Tyre size calculator

    After seeing so many people recommend the WillTheyFit.com tyre size calculator, i thought i'd add this Excel version. The reason being, willtheyfit's calculator has a possible issue, the new tyre size isn’t grounded (see crude red arrow) in relation to the original tyre size so doesnt reflect...
  5. amdowney

    17” All-Terrain tyres

    So am going down the At route with my fmo. Liking the look of the tristar concept which has 17" wheels and chunky tyres. Anyone know what tyres can go up to?
  6. P

    18” or 19”?

    As quite many are using 20" wheels, which by the way do look rather nice, but it is not suitable for all users. So please be kind and show your 18's and 19's to help make up my mind and hopefully gather good visual database for other users as well :)
  7. Glenn Board

    Speedo Adjustment For Bigger Tyres

    Hi, I was going to have the Seikel raised suspension kit fitted to my van which includes 235/65R17 108H tyres being fitted to my standard wheels, they tell me that if they do s speedo adjustment to match these tyres that there is a possibility that the cruise control will stop functioning...
  8. F

    DSG and rolling radius changes

    Got standard 17" Devonport alloys and 150 bhp dsg box. I want to go for 18" probably sportlines as part of dropping it few mm too. Does the change in wheel size or tge rotating mass have any detrimental effect to performance of the dsg? I assume Speedo will return correct speed as...
  9. Shredder

    Am I Being Thick . . . .

    I'd assumed a Kombi LWB with -40mm springs, 20" rims and 275/40 tyres would have a lower overall height than the equivalent VW Sportline Looking at the wheel and rim calculator thingy, I'm not so sure now, unless I've done something wrong. Which would have a lower total vehicle height ?? Just...
  10. T

    All terrain tyres - recommendations and pictures

    hi all, does anyone have all terrain tyres on their van? I love the look but am interested in how loud they are compared to smoother tyres and if there are any other draw backs people have encountered, thanks
  11. Matt W

    Spare Wheel - do I need to change it from 16” if I’ve gone bigger?

    Afternoon all, Quick question. I am planning to put some 18" alloys on my van with 235/50 R18 tyres fitted. Will it still be ok to use the original supplied spare wheel with alloys of this size in the event of a puncture? Thanks
  12. GordyT6

    The Big wheel Gearbox debate

    Hi peeps. Look I know everyone has an opinion on this. But I have my 20's on my T6, a few warned me about it screwing my gearbox, then others say no I wouldn't, we've been and done that now but to a mere fool that I am. Can anyone answer me why VW think big wheels do the gearbox in? Surely my...
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