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Home > Wheels & Tyres > wheel upgrade

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will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

2014 Range Rover Autobiography SDV8 Loire Blue

wheel upgrade

hi quick question
im looking at upgrading my wheels from 20" to 21" and was wondering if it will make any difference to my speedo ?
thanks

11th Apr 2025 6:53pm

Vogue

Member Since: 31 Jan 2008
Location: on the hill
Posts: 3787

If they are standard tyre sizes then no - the rolling radius is more or less the same = no difference.

255/55/20 275/45/21 or 275/40/22 or on some L405’s 285/40/22 these are the std OEM fit and won’t make any material difference

In my experience they all register 3 to 4 mph under speedo reading 2021 L405 Vogue SE 4.4 V8 DIESEL ~ #17

11th Apr 2025 8:12pm

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

yea that’s what i’m doing all standard sizes

11th Apr 2025 8:32pm

LT

Member Since: 13 Mar 2017
Location: South West
Posts: 414

2017 Range Rover Autobiography SDV8 Carpathian Grey

If you’re looking for a set of 21”s I have the four that I took off my 2017 Autobiography SDV8, which are clogging up one of my sheds.
I’m near Plymouth most weekends.

11th Apr 2025 11:53pm

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

which ones are they?

12th Apr 2025 8:43am

LT

Member Since: 13 Mar 2017
Location: South West
Posts: 414

I’ll take a photo this morning. 👍

12th Apr 2025 9:17am

Parallel

Member Since: 15 Nov 2018
Location: Essex
Posts: 37

I've found this calculator to be useful for working this out.
https://www.willtheyfit.com/

12th Apr 2025 9:21am

LT

Member Since: 13 Mar 2017
Location: South West
Posts: 414

I can’t easily get to them, as they’re stacked at the back of one of my sheds. So here’s a couple of photos from when I bought the FFRR in October 2019.

As I go off road regularly, I immediately fitted 20” rims. As such these wheels have only been used for the 20,500 miles it had done when I bought it.

From memory they don’t have any damage whatsoever.

Click image to enlarge

I’ll be 15 miles from Plymouth over the Easter weekend and most other weekends for the next few months.

The tyres are Pirelli All Seasons, BUT they were probably fitted in 2017, when it was new. Again from memory, they have c.3mm/4mm tread depth.

Last edited by LT on 12th Apr 2025 10:04am. Edited 1 time in total

12th Apr 2025 9:44am

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

ok yea i like them but will have to say what the boss thinks aka wife 🤣,new tyres needed i would think what you want for them ?
thanks will

12th Apr 2025 9:49am

LT

Member Since: 13 Mar 2017
Location: South West
Posts: 414

They have been carefully stacked in the dark, but yes at nearly 8 years old I’d probably want to replace the tyres.

£500?

12th Apr 2025 10:26am

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

let me show the wife the pics , pity i didn’t know you were swapping yours before could of done a swap lol

12th Apr 2025 11:03am

LT

Member Since: 13 Mar 2017
Location: South West
Posts: 414

The 21”s are the oe stock/default MY17 Autobiography rims, unless the first owner specified otherwise.

They do look great and many think that size is the best compromise, but for regular off road use I wanted the smallest rims possible. Which with the bigger SDV8 brakes meant 20”s.

I wanted similar style rims, so I have 10 of these 20”s now:

Click image to enlarge

12th Apr 2025 11:25am

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

look like turbines didnt know they did them in 20" ,some proper off road use here is mine

Click image to enlarge

petal design as my wife calls them which she really likes ....hence my trouble to change them .but will show her the pics and let you know

12th Apr 2025 12:13pm

will308f

Member Since: 19 Apr 2022
Location: plymouth
Posts: 506

hi pm sent

12th Apr 2025 6:23pm

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