DEFENDER2.NET - View topic - Going 16 to 18 planned but is my maths wrong?

↓ Advertise on Defender2 ↓

Home · FAQ · New Posts · My Posts · PMs · Search · Members · Map · Calendar · Profile · Donate · Register · Log In

Home > Wheels & Tyres > Going 16 to 18 planned but is my maths wrong?

Page 1 of 3

Print this entire topic ·

Augustus

Member Since: 23 Mar 2016
Location: Carcassonne
Posts: 86

2014 Defender 110 Puma 2.2 SW Corris Grey

Going 16 to 18 planned but is my maths wrong?

Evening all,

Posted this in the Bowler thread and then realised it was a bit of a hijack so posted it here instead…

So, I'm on the verge of going Bowler 18 on my 110. Two questions to those with better maths/ experience than me…

Will going up from a 235x85 16" to a 265x65 18" mean a higher ride height for the car? My shonky maths puts it as raising the height of the vehicle by about 10-15mm. But I am quite prepared to be corrected as I got an 'E' in Maths.

Have those that have 18 Bowler'd (or other) their Defenders and put these pics up here also lowered them? Or is it generally accepted to fit as they come and leave them?

The insurance company's fine with the wheel change. POssibly won't be with any other mods, but I'd rather not have it raised any more.

Thanks in advance of any help - much appreciated.

22nd Sep 2016 8:07pm

GREENI

Member Since: 22 Aug 2010
Location: staffs
Posts: 10383

Get the tremec phone app, it'll give you all tyre sizes

22nd Sep 2016 8:20pm

Cupboard

Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

2011 Defender 110 Puma 2.4 HT Corris Grey

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.

22nd Sep 2016 8:21pm

JOW240725

Member Since: 04 May 2015
Location: Suffolk
Posts: 7906

2012 Defender 110 Puma 2.2 XS CSW Orkney Grey

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

22nd Sep 2016 8:27pm

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

22nd Sep 2016 8:48pm

TJ101

Member Since: 30 May 2007
Location: Taunton Somerset
Posts: 3750

2015 Defender 110 Puma 2.2 XS CSW Montalcino Red

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

22nd Sep 2016 8:50pm

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.

22nd Sep 2016 8:50pm

agentmulder

Member Since: 16 Apr 2016
Location: Outer Space
Posts: 1324

TJ101 wrote:
Difference is 4.2mm between the 2 Gus

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...

22nd Sep 2016 8:55pm

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.

22nd Sep 2016 9:06pm

JOW240725

Member Since: 04 May 2015
Location: Suffolk
Posts: 7906

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

22nd Sep 2016 9:17pm

Grenadier

Member Since: 23 Jul 2014
Location: The foot of Mont Blanc...
Posts: 5829

2011 Defender 110 Puma 2.4 DCPU Corris Grey

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

22nd Sep 2016 9:23pm

Augustus

Member Since: 23 Mar 2016
Location: Carcassonne
Posts: 86

Grenadier - thanks.

I see you're in the 'other' mountains.

22nd Sep 2016 9:29pm

Riverboy

Member Since: 16 May 2016
Location: French sector, Earth
Posts: 1288

2014 Defender 90 Puma 2.2 SW Corris Grey

Click image to enlarge

Defender porn. Enjoy.

22nd Sep 2016 9:30pm

Cupboard

Member Since: 21 Mar 2014
Location: Suffolk
Posts: 2971

Augustus wrote:

Cupboard - that's what I wanted to hear. Did you get an 'A'?

22nd Sep 2016 9:30pm

Augustus

Member Since: 23 Mar 2016
Location: Carcassonne
Posts: 86

Riverboy wrote:

Click image to enlarge

Defender porn. Enjoy.

Riverboy - have you got any further out shots of the car on those KO2's?

I see you too are across the autoroute…

22nd Sep 2016 9:34pm

Page 1 of 3

All times are GMT

Jump to

< Previous Topic | Next Topic >

Posting Rules

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum