Tyre profile size

Wheels, Tyres, Suspension, Chassis, Faults and Fixes
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Coliniq66
Posts: 6
Joined: Tue Oct 16, 2018 4:58 pm
Location: Berkshire England

Tyre profile size

Post by Coliniq66 » Tue Oct 30, 2018 3:57 pm

As a new owner of 2018 r sport with black 19 inch wheels I have just noticed that the front tyre size is 255/40/19 and the rears are 255/35/19 is this different profile correct?


JimmyH
Posts: 87
Joined: Mon Oct 15, 2018 8:16 pm
Location: Carluke, Scotland

Re: Tyre profile size

Post by JimmyH » Tue Oct 30, 2018 4:01 pm

Similar with R Sport 300AWD on 18''rims

Front 225/45/ R18
Rear 245/40 R18
XE R Sport 30t AWD, Loire Blue, MY19, full dynamics, 18 way seats, privacy glass. 25-10-2018. 2nd Jag.

1st Jag S type 2.5 V6. Sapphire Blue. New in Nov 2003 til Aug 2017. Armchair on wheels that cornered on rails.


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PhilB
Posts: 5202
Joined: Mon Aug 17, 2015 12:57 pm
Location: South Buckinghamshire

Re: Tyre profile size

Post by PhilB » Tue Oct 30, 2018 4:05 pm

Quite normal on a few models.

20180413_124536.jpg

XE S 380, Storm grey Pics Black venoms/black pack, 18 ways, BSM, 40/20/40, ICTPro 380, parking pack, spare wheel.
Previous: 2015 XE S 340, British Racing Green.


Coliniq66
Posts: 6
Joined: Tue Oct 16, 2018 4:58 pm
Location: Berkshire England

Re: Tyre profile size

Post by Coliniq66 » Tue Oct 30, 2018 4:24 pm

Thanks for replies


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147daytona
Posts: 816
Joined: Fri Jul 08, 2016 8:50 pm
Location: Lowestoft, UK

Re: Tyre profile size

Post by 147daytona » Tue Oct 30, 2018 6:31 pm

A lot of performance rwd cars have larger tyres at the back than the front to help with power delivery without making the steering less sensitive.
MY17 240 R-Sport, IRR, Black Pack, Park Pack, Cold Climate Pack, 19" Twin 5 Spokes, Jet/Red Interior, 10 Way + Lumbar, Split Rear Seat, ICT Pro, Illuminated Tread Plates, Configurable Mood Lighting, Alloy Paddles & Pedals, Homelink, Spare Wheel.


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