Tyre Tread Widths

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Over the years, I've learnt that not all tyres are created equal. Despite the numbers written on the sidewall being the same, the values of the different parameters vary from pattern to pattern. For example, tyre diameters and tread width don't really have a correlation to the sidewall markings.

So for this thread, I'm making a list of tyre tread widths. This is a measurement of the tread part of the tyre that contacts the ground, as opposed to the overall width of the tyre.

So post below what you've got and I'll try to maintain the list.

Download the spreadsheet and have a play
https://app.box.com/s/iwlpegjm8dytoxmv4hz77otqpyoh7pv5

16"
245/75R16
190mm Maxxis Bighorn
210mm Pirelli Scorpion ATR

265/75R16
220mm BFG AT KO

285/75R16
220mm Maxxis 751
230mm BFG MT KM2

255/85R16
185mm BFG MT KM2
210mm Maxxis Bighorn MT

17"
245/70R17
195mm Dunlop AT20
197mm Yokohama Geolandar AT-S G012

265/65R17
210mm Dunlop AT20
220mm Bridgestone D697
225mm Toyo A/T II
230mm Coopers AT3

275/65R17
225mm BFG AT KO
245mm Pirelli Scorpion ATR

265/70R17
195mm Dunlop AT22
210mm Hankook Dynapro ATM
215mm Goodyear Wrangler MT/R
215mm Pro Comp Xtreme MT2
215mm Toyo A/T II
220mm BFG AT KO
225mm Dick Cepek Fun Country
230mm Cooper ST-Maxx

18"
265/60R18

265/65R18

The rest
Continental 5P 285/35 20 - 295mm
Vee 26x4 - 95mm
Big Fat Larry 26x4.7 - 120mm

[kenny5000 Advanced Member Find all posts View Profile Close kenny5000]

Dick Cepek Fun Country 265/70R17 - 225mm

[Corigator Avid PP Poster! Find all posts View Profile Close Corigator]

Cooper ST-MAx 265/70/17 - 230mm

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

BFG AT 275/65 17 - 225mm
Pirelli Scorpion ATR 275/65 17 - 245mm
Pirelli Scorpion ATR 245/75 16 - 210mm
Maxis Bighorn 245/75 16 - 190mm
BFG MT KM2 285/75 16 - 230mm
Maxis 751 285/75 16 - 220mm
Continental 5P 285/35 20 - 295mm
Vee 26x4 - 95mm
Big Fat Larry 26x4.7 - 120mm

[Anth120playdo Banned Find all posts View Profile Close Anth120playdo]

Nice thread mr.
You are onto it, most tyre places I speak to dont realise the "section width" is not the " tread width".

You can gather the data, http://www.tirerack.com/content/tire.../homepage.html
On tire rack website you can select size & makes/models & compare including all their specs.

[craigm Addicted PP Member Find all posts View Profile Close craigm]

Pro Comp Xtreme MT2 265/70/17. 215mm


Sent from my iPhone using Tapatalk

[AJ120 Out of control poster! Find all posts View Profile Close AJ120]

BFG AT KO 265/70/17 = 220mm

BFG AT KO 265/75/16 = 220mm

Cheers Andrew

[diesel69 Junior Member Find all posts View Profile Close diesel69]

Coopers AT3 265/65 17 230mm

[glen_ep Addicted PP Member Find all posts View Profile Close glen_ep]

255/85R16
185mm BFG MT KM2
210mm Maxxis Bighorn MT

[rogjil Find all posts View Profile Close rogjil]

Hankook Dynapro ATM 265/70/17 210mm

[Tony120 Lurker Find all posts View Profile Close Tony120]

A couple to add

265/70/17
Toyo Open Country AT II 215mm

245/70/17
Yokohama Geolandar A/T-s 197mm
Dunlop AT20 Grand Trek 195mm

Interesting that the toyo at2s are 10mm wider in the 65 profile than the 70

[glen_ep Addicted PP Member Find all posts View Profile Close glen_ep]

Sorry the 255 measurements were a little bit out - updated on my previous post.

Interesting to see some of the 285 and 265's are very close in width to the 255's!

[mjrandom Out of control poster! Find all posts View Profile Close mjrandom]

I was surprised how (relatively) narrow the 285s were.

[Bear63 Senior Member Find all posts View Profile Close Bear63]

The tyre numbers refer to section width as mentioned above not tread width , it is the width measued at a specific section of the tyre on a specific rim (dont ask me what sort of rim)

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Thank you all for the info. I have also created an excel spreadsheet with funky colours and bars that vary in length depending on the width recorded. Feel free to play with it. It's in the first post.

A pattern seems to be emerging in that MT tyres are narrower than AT tyres. In terms of offroad performance, given the same overall diameter, a narrower tyre will give you better offroad traction when driving over uneven ground (think tank tracks). This is because a narrower tyre will have a longer footprint. I don't know how much better it will be but it's something to mull over next time you're at the camp fire and discussing/comparing the day's run with your fellow companions.