Home > Wheels & Tyres > Going 16 to 18 planned but is my maths wrong? |
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GREENI Member Since: 22 Aug 2010 Location: staffs Posts: 10383 |
Get the tremec phone app, it'll give you all tyre sizes
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22nd Sep 2016 8:20pm |
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Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 |
Going by the numbers, your overall diameter on the current ones is:
(0.85+0.85)*235 = 399.5mm 399.5/25.4 = 15.7" 15.7+16-31.7" And the new ones: (0.65+0.65)*265 = 344.5mm 344.5/25.4 = 13.6" 13.6+18 = 31.6" Your new wheel and tyre combination is all of 0.1" or 2mm of a reduction in diameter over the old ones which is less than the amount of wear you get in a tyre. That's really not an issue and won't noticeably change the height. |
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22nd Sep 2016 8:21pm |
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JOW240725 Member Since: 04 May 2015 Location: Suffolk Posts: 7907 |
Wheel diameter will be the same give or take a few mm. You'll need your maths so not to work out how much more the 18" alloys and tyres will cost you compared to 16". James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641 MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557 Instagram @suffolk_rovers |
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22nd Sep 2016 8:27pm |
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agentmulder Member Since: 16 Apr 2016 Location: Outer Space Posts: 1324 |
Someone double check please but:
original from axle minus new from axle: 8*25.4 + 235*0.85 - 9*25.4 - 265*0.65 = 2.1mm Solved the bowel problem, working on the consonants... Last edited by agentmulder on 22nd Sep 2016 9:00pm. Edited 1 time in total |
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22nd Sep 2016 8:48pm |
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TJ101 Member Since: 30 May 2007 Location: Taunton Somerset Posts: 3750 |
Difference is 4.2mm between the 2 Gus
You will never notice it California F1, 75th 110 "Kermit", 50th Ann V8, 90 V8 Hybrid, 55 Series 1 Main Brian James Trailer Dealer for South West UK |
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22nd Sep 2016 8:50pm |
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Augustus Member Since: 23 Mar 2016 Location: Carcassonne Posts: 86 |
Thanks all.
Cupboard - that's what I wanted to hear. Did you get an 'A'? JOW - cost? Don't. It all began as a very different prospect than what it ended up as. Wheels are the cherry. |
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22nd Sep 2016 8:50pm |
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agentmulder Member Since: 16 Apr 2016 Location: Outer Space Posts: 1324 |
Just for the sake of crossing eyes and dotting teas, keep in mind that only half of that determines vehicle height. Solved the bowel problem, working on the consonants... |
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22nd Sep 2016 8:55pm |
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Augustus Member Since: 23 Mar 2016 Location: Carcassonne Posts: 86 |
TJ , AgentMulder,
Ti-Fat Man on here would concur that I have been known to change 2mm spacers on mountain bikes and 'feel' a difference�. Thanks all. Really helpful as ever. |
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22nd Sep 2016 9:06pm |
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JOW240725 Member Since: 04 May 2015 Location: Suffolk Posts: 7907 |
The Bowler 18" in anthracite is my absolute favourite wheel. Whilst I might justify to myself the one off extra cost of the alloys, the 18" tyres are 30% more than the equivalent 16", for less tyres!?! KO2 in 16" are roughly �132 where as 18" are �176!! Could I justify this?? I don't know.... Tempting James
MY2012 110 2.2TDCi XS SW Orkney Grey - http://www.defender2.net/forum/topic43410.html MY1990 110 200TDi SW beautifully faded Portofino Red - https://www.defender2.net/forum/post743641.html#743641 MY1984 90 V8 Slate Grey - https://www.defender2.net/forum/post744557.html#744557 Instagram @suffolk_rovers |
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22nd Sep 2016 9:17pm |
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Grenadier Member Since: 23 Jul 2014 Location: The foot of Mont Blanc... Posts: 5829 |
Augustus, my penny's worth:
http://www.defender2.net/forum/post565914.html#565914 Monsieur Le Grenadier I've not been everywhere, but it's on my list..... 2011 Puma 110DC - Corris Grey |
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22nd Sep 2016 9:23pm |
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Augustus Member Since: 23 Mar 2016 Location: Carcassonne Posts: 86 |
Grenadier - thanks.
I see you're in the 'other' mountains. |
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22nd Sep 2016 9:29pm |
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Riverboy Member Since: 16 May 2016 Location: French sector, Earth Posts: 1288 |
Click image to enlarge Defender porn. Enjoy. |
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22nd Sep 2016 9:30pm |
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Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 |
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22nd Sep 2016 9:30pm |
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Augustus Member Since: 23 Mar 2016 Location: Carcassonne Posts: 86 |
Riverboy - have you got any further out shots of the car on those KO2's? I see you too are across the autoroute� |
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22nd Sep 2016 9:34pm |
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