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31 10.50 15 tyres and correct wheel offset / width

Busta
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03 Nov 2017 08:32 #185784 by Busta

Replied by Busta on topic 31 10.50 15 tyres and correct wheel offset / width

Just to clarify, all the sizes I listed are '31s', as in they are 31 inches tall, so they will give you the clearance you require.

Regards the rim width, narrow rims are better for protecting the tyre bead and sidewalls. The sidewalls are so tall on off-road tyres you can, within reason, fit whatever width rims you want. I'd always choose offset rims rather than spacers. It's one less thing to give issues, saves a bit of weight and hassle and IMO the rims look nicer.

The following user(s) said Thank You: mlines, 1066Boy

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mlines
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03 Nov 2017 09:25 #185787 by mlines

Replied by mlines on topic 31 10.50 15 tyres and correct wheel offset / width

X88RED wrote:
It seems however there is no definitive answer as to what offset or width works best with 31’s? Some say 7” wide and some say 8” wide and then some say 10”. Also same with the offset ha? Really not sure now!?

This is why I am so vague on tyres and rims when you called in for a chat

It seems to me that even on apparently identical Jimnys some setups work on one and not the other. There seems to be little hard and fast rules.
Sounds like you are going for the same set up as my target as well

Martin

2003 M13 early KAP build.
3" Trailmaster lift with 1.5 Spacers on front
Customised winch bumper and roll cage
235/85R16 Maxxis Bighorns on 16" Rims, 4:1 Rocklobster, Rear ARB locker and on-board air
Corrected arms all-round, rear disks, Recaro seats and harnesses

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X88RED
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03 Nov 2017 15:05 #185790 by X88RED

Replied by X88RED on topic 31 10.50 15 tyres and correct wheel offset / width

Ok so I am swaying more towards 750 r16 or 235/85 r16 now ha - thank you everyone!

What width wheels and offset would work best with these tyres? Also what ratio of transfer box would be the absolute best here?

I have spoken to Rockwatt and he still thinks 5:1 but I would like to gain other peoples opinions and real world experiences!

Thank you!

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mlines
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03 Nov 2017 15:31 #185791 by mlines

Replied by mlines on topic 31 10.50 15 tyres and correct wheel offset / width

Well my 235/85 R16 should turn up on Tuesday next week if you want a look.

I also spoke with Rockwatt and he says 5:1 but I have the old 4:1 still in so I might try running on that until my bank account recovers.

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X88RED
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03 Nov 2017 15:50 #185794 by X88RED

Replied by X88RED on topic 31 10.50 15 tyres and correct wheel offset / width

That would be very handy Martin! What offset/ width are the Vitara wheels you are fitting?

I take it you run uprated shafts and cv's?

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Lambert
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The quickest Jimny in Harrogate...(that I own)

03 Nov 2017 16:28 #185795 by Lambert

Replied by Lambert on topic 31 10.50 15 tyres and correct wheel offset / width

As a general rule the wheels ought to be about 70 percent of the width of the tyre. In practice anywhere between 5 and a half and 6 and a half should be fine.

Temeraire (2018 quasar grey automatic)
One of the last 200ish of the gen3s, probably.
Bellerophon (2024 grello van daily
ADOS Attention Deficit Ooooh Shiny!

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31 10.50 15 tyres and correct wheel offset / width

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