Tyre Size

Monaro Pete · 30-06-2018, 15:01

Hey guys.
This has probably been asked before... I've had a look around the forum, but it's a needle in a hay stack scenario.
What size tyre (in circumference) can I go up to without any problems?
I'd like to leave the mud flaps in place, though I have no objection to trimming them if I have to.
I see Elty has had 265/75 15s fitted in the past on his project thread, but he did a 2" spring lift too.
Are 265/75s an option at standard height?

The new truck is nearly ready for some new boots & I'd like to bring the speedo into line with the correct speed & lower the revs slightly at speed.

terranosaurusdoug · 30-06-2018, 15:18

You defo running 15" rims? 265 75 15's are 30.6 inches, I have 245 75 16's which are 30.5 inches, I ran them with the standard/old/worn and sagging suspension with no problems at all, I have a lift now but had no probs before the lift

I'm going an inch bigger next time with 265 75 16's which will be approx 31.6 inches. The actual size of the tyre varies a little with manufacturer too!

Monaro Pete · 30-06-2018, 15:36

Doh

Silly me, I don't know why I put 15". They're 16" rims

elty001 · 30-06-2018, 19:19

Also the manufacturer and tread pattern can make a big difference to the overall size.
The only problem i had running tyres that wide was them rubbing on the power steering box on full lock.

Monaro Pete · 30-06-2018, 22:05

Thank you both for your replies.
Looks like I'll be needing some spacers

Monaro Pete · 11-07-2018, 15:25

I've been running 265/70R16's now for a little over a week & all I had to do was trim the front mud flaps a little, because of the extra profile. No rubbing anywhere else.
No spacers where needed. My speedo is now 1mph over than true, which I can live with

Thank you for your advice

30-06-2018, 15:01	#1
Monaro Pete Senior Member Join Date: Apr 2016 Location: Nr J28 M1 Vehicle: 03 Terrano 2.7 TDi Posts: 995	Tyre Size Hey guys. This has probably been asked before... I've had a look around the forum, but it's a needle in a hay stack scenario. What size tyre (in circumference) can I go up to without any problems? I'd like to leave the mud flaps in place, though I have no objection to trimming them if I have to. I see Elty has had 265/75 15s fitted in the past on his project thread, but he did a 2" spring lift too. Are 265/75s an option at standard height? The new truck is nearly ready for some new boots & I'd like to bring the speedo into line with the correct speed & lower the revs slightly at speed.

30-06-2018, 15:18	#2
terranosaurusdoug Senior Member Join Date: Sep 2014 Location: Yorkshire, J33 M62 Vehicle: 2000 Terrano lwb 2.7TDI Posts: 5,500	You defo running 15" rims? 265 75 15's are 30.6 inches, I have 245 75 16's which are 30.5 inches, I ran them with the standard/old/worn and sagging suspension with no problems at all, I have a lift now but had no probs before the lift I'm going an inch bigger next time with 265 75 16's which will be approx 31.6 inches. The actual size of the tyre varies a little with manufacturer too!

30-06-2018, 15:36	#3
Monaro Pete Senior Member Join Date: Apr 2016 Location: Nr J28 M1 Vehicle: 03 Terrano 2.7 TDi Posts: 995	Doh Silly me, I don't know why I put 15". They're 16" rims

30-06-2018, 19:19	#4
elty001 Senior Member Join Date: Feb 2008 Location: Aflreton,Derbyshire. Vehicle: 2000se+ 2.7tdi terrano II Posts: 6,832	Also the manufacturer and tread pattern can make a big difference to the overall size. The only problem i had running tyres that wide was them rubbing on the power steering box on full lock.

30-06-2018, 22:05	#5
Monaro Pete Senior Member Join Date: Apr 2016 Location: Nr J28 M1 Vehicle: 03 Terrano 2.7 TDi Posts: 995	Thank you both for your replies. Looks like I'll be needing some spacers

11-07-2018, 15:25	#6
Monaro Pete Senior Member Join Date: Apr 2016 Location: Nr J28 M1 Vehicle: 03 Terrano 2.7 TDi Posts: 995	I've been running 265/70R16's now for a little over a week & all I had to do was trim the front mud flaps a little, because of the extra profile. No rubbing anywhere else. No spacers where needed. My speedo is now 1mph over than true, which I can live with Thank you for your advice