DaveK wrote:

Can you have a 255/50/20 on the same axle as a 255/55/20 ?
Can you have one size front and one size rear ?

Sorry to be late to the party as usual.........
I fitted a set of 255/55/20 Goodyear F1 Eagle SUV 4x4 a few months back. They are much quieter than the old worn out P Zero / Conti combination that was on the truck when I bought her. They also have a much larger rolling radius which should improve economy.....!?!
The old and the new:

Click image to enlarge

Do any diesel owners running 55s have this problem with holding gears? __
2018 L405 3.0 TDV6 Vogue SE Fuji White
2000 4.6 V8 HSE Oxford Blue
1994 3.9 V8 Vogue Ardennes Green - resto project

Land Rover History:
2010 3.6 TDV8 Autobiography Stornoway Grey
2001 Discovery 2 TD5 GS
1999 Discovery 2 V8i XS
1994 Discovery 300Tdi
1993 Discovery 200Tdi
1989 Range Rover Vogue SE 3.5EFi
1976 Series 3 2.25
1977 Range Rover 2 door 3.5 Carb

I have not noticed that. The speedo reads lower (about right in fact, measured by my Road Angel) and the steering is a bit slower than with 255/50R20s, but otherwise fine. Only Range Rovers since 1988

Those tyres as pictured look considerably taller.

No idea why the car won't go into top gear with them fitted though....

My Fattie rarely made top gear when driving locally, never in speed limits etc. I was really beginning to hate the 55s.
However, fitting the 10% extra pulley to the supercharger has more than made up for the reluctance to select/stay in 6th and has overcome the lack of pull/flat spot? in the gears when driven sensibly that I was experiencing. It is now a much improved driving experience. Obviously it does not change the rolling radius/rev calculation, but has dramatically changed the amount and way the power is delivered. When not driven sensibly she now accelerates........progressively!
She does seem to wallow a bit more when cornering but I put that down to the taller side walls, she is not a sports car and probable wear in suspension bushes etc.....bearing in mind my S/C has now done over 187K miles!??!
I tend not to throw her around, but drive in a more sedate/refined manner, safe in the knowledge the horses are waiting to be released if & when required.
Cheers,
Ken 55 S/C L322 Zambesi Silver.....GONE!!
56 S/C L322 Java Black......surviving at present...just!
04 N/A 4.2 V8 S Type Jag
1961 reg 3.5 V8 Bowler Tomcat.....Sold
Numerous Classic (rusty!?!) Minis

Never had an issue with gears on the 255 55 20s on my td6. When did you last have the oil changed in the box?

Seems to offer a ride similar to when on 19s.

As to the speedo, it now shows the correct speed rather than just under when on stock. Tom

Current Drive
2011 4.4 TDV8 Autobiography - Santorini Black - Ivory Leather

Previous Drives
2004 Model Vogue Td6 (Touchscreen) - Java Black - Parchment Leather
1994 RR Classic 3.9 V8 Soft dash - Niagara Grey - Grey Leather
1972 Series III SWB Safari - Green (Hand Painted) - Black Plastic

If you're upsizing, don't forget to do your spare too.

Is there an insurance issue with fitting the 55's rather than the 50's? Has anyone told their insurance company and was there a problem with getting cover? Current:
- 2017 L405 3.0 V6 Autobiography
Sold:
- 2013 L405 4.4 TDV8 Vogue
- 2004 L322 4.4 Vogue (BRC LPG)
- 2002 L322 4.4 HSE (having fixed timing chain guides)
- 2000 P38 4.6 Vogue (BRC LPG)
- 1981 2-door In-Vogue
- 1980 Ex-Army SIII LWB
- 1976 SIII LWB
- 1968 SIIA
Stripped for parts:
- 2003 L322 4.4 Vogue

I’m just about to change all four barely worn 255/50 x 20 Pirellis as they are all damaged by potholes in some way or another (Splits, bulges etc. Thanks Bucks County Council!).
Am going for the Grabber AT3 in 255/55 in the hope of gaining a wee bit more cushioning together with a stronger carcass too.
Can anyone confirm yhis tyre will fit in the spare wheel well of a 2009 L322 TDV8? The standard Pirelli as fitted above goes in ok.
Thanks in advance!

255x 55 x20 Pirelli Scorpion Verde just fit in, but are tight and if you have a wheel lifter fitted it sits a bit proud, preventing the floor sitting exactly flush as it should.

Thanks Mike,
So without lifter floor should fit flush? I’m also thinking that if I partially deflate the tyre (I carry a little VW electric inflator),then I’ll get a bit more wiggle room!

I was hoping someone else might reply who can confirm the Grabber AT3 fit, because they look a good choice.
Please update this thread if you go ahead with them.
Mike. G reg 2.5VM Vogue Portofino red 1991- 1999
V reg 2.5td P38 Rioja red 1999- 2006
53 reg td6 Vogue Oslo blue 2006- 2015
11 reg 4.4 TdV8 Vogue SE. Baltic blue 2015- date.
https://www.fullfatrr.com/forum/topic56162...tty+affair

Jorrocks wrote:

Thanks Mike,
So without lifter floor should fit flush? I’m also thinking that if I partially deflate the tyre (I carry a little VW electric inflator),then I’ll get a bit more wiggle room!

My spare is brand new 255/55/20 without the lift and it is tight tbh and heavy, it fits flush with the cover closed and can be pretty hard to get out with my bad back the only issue. _____________________________________________________
Zambezi silver Vogue Se unique

Thanks Scotty,
I find even the standard wheel’s a strain on the back!

Mike, I’m having the AT3’s fitted tomorrow so will report back.