17" Wheels & Cooper Tires for New Hilux

Submitted: Wednesday, Jul 06, 2005 at 15:40
ThreadID: 24494 Views:11868 Replies:8 FollowUps:13
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I have ordered a new Hilux TD Dual Cab SR5 and want to replace the 15" wheels with a ROH 17" Wheel designed for the car with some Cooper tires. I have seen either 265 x 65 x 17 or 275 x 75 x 17. Either way I am changing the rolling diameter of the vehicle, not by too much I wouldn't think but was wondering if anyone had had any experience with this, what would they recommend..? Will mainly be using the vehicle on road, would think the slightly bigger wheels would help with clearance off road also..?

Regards, TerraFirma
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Reply By: geocacher (djcache) - Wednesday, Jul 06, 2005 at 15:50

Wednesday, Jul 06, 2005 at 15:50
17" rims on a Hilux???

Why bother?

I assume you are looking at Cooper HT's as clearly you don't plan on going off road. As soon as you need to drop the pressure in any sort of real 4wd terrain you are going to run a huge risk of rim damage on your shiny new rims.

17" rims are for vehicle design artists drawings and sports cars. Not 4wds.

Gees, I was looking at Patrols and querying the legality in Victoria of pi$$ing off the useless (& ugly) alloys for a real steel 4wd rim in a more appropriate size.

Dave
AnswerID: 119127

Follow Up By: Skinny- Wednesday, Jul 06, 2005 at 16:04

Wednesday, Jul 06, 2005 at 16:04
Hi Geocacher, I am one of the funda-mental ists who love skinny wheels and don't give ableepabout looks (lucky for me) but apart from changinf wheels outback and finding spares...whats wrong with 17' wheels. Only a few years ago 16's were less common than 15"...whats the go or am i missing something.

Skinny
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Reply By: geocacher (djcache) - Wednesday, Jul 06, 2005 at 16:13

Wednesday, Jul 06, 2005 at 16:13
For the same rolling diameter the increase in the rim size means a reduction in profile, therefore the rocks and other things likely to cause damage are much closer to the rim.

When you run lower pressures you have less volume of balloon to provide the cushioning effect that allows deformation over obstacles and being closer to those obstacles you are far more likely to hit a rim.

Alloys will chip or crack where steel rims will bend and may be able to be repaired either back home or if necessary in the field.

The advantage to be gained with the 17" rim is aesthetic (looks - vehicle design artists ALWAYS draw vehicles with 19 & 21" rims and no rubber when they are trying to sell a design to bean counters) and in a sports car in cornering handling at higher speeds. Given the nature of 4wds centre of gravity and roll over capability there isn't the need as they can't be driven at those sort of speeds on bitumen anyway.

Plus tyre costs go up ++ with rim size (generally).

Dave
AnswerID: 119129

Follow Up By: garrycol - Wednesday, Jul 06, 2005 at 16:33

Wednesday, Jul 06, 2005 at 16:33
Spot on geocatcher - another issue is whether you be able to get 17" tyres outside of the major cities in a hurry if needed.

Gazz
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Follow Up By: Longreach - Wednesday, Jul 06, 2005 at 16:35

Wednesday, Jul 06, 2005 at 16:35
I agree with geochacer. Lower profile tyres, which is what you must get if you increase the rim size and maintain the same overall diameter, means less rubber between the rim and the road, and so the tyre has less ability to flex when it goes over rocks and therefore more chance of destroying the tyre.
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Follow Up By: geocacher (djcache) - Wednesday, Jul 06, 2005 at 16:40

Wednesday, Jul 06, 2005 at 16:40
....and the rim.

No there weren't any 17's at Tilmouth Well on the Tanami, there was a second hand 15 and a 16 I think.

I know you won't get one even at Mount Beauty at the foothills of the yuppies playground in NE Vic.

I definately didn't see any in many of the other places we visited in the 10,500 km we did in may but then I wasn't looking.

But I didn't see too many fourbies running 17's in any of the outback and I did see LOTS of fourbies. Given that demand is directly proportional to supply out there I reckon you'd be waiting a week or having your tyres flown in.

Every cloud has a silver lining though and if you had to resort to the latter the cost could be spread between the replacement tyre and the rim :o)))

Dave
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Reply By: ginga - Wednesday, Jul 06, 2005 at 17:44

Wednesday, Jul 06, 2005 at 17:44
Isn't there also the issue of an engineer's certificate being required?
AnswerID: 119144

Follow Up By: Glenno - Saturday, Jul 09, 2005 at 21:44

Saturday, Jul 09, 2005 at 21:44
If your in Qld you cant get an engineers certificate for changes to tyres and rims. They only allowances are the +15mm / -26mm rule which is well published on here.
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Reply By: TerraFirma - Wednesday, Jul 06, 2005 at 20:30

Wednesday, Jul 06, 2005 at 20:30
Thanks guys for all your feedback, but perhaps I wasn't clear. I am happy to change the rolling diameter because I do "not" want low profile tyres. All I want are the 17" wheels , yes because aesthetically the 15's make the new-lux look silly. So hence I have seen 265 and 275 profile tyres on 17" which would retain the tyre thickness but would change the rolling diameter, increase it. Technically this would slightly gear the car taller. (You can compensate the speedo with a plastic adjuster to suit)

So my question was has anyone done this , ala increase the rolling diameter and changed to 17" wheels on other model Hilux's or 4WD's..?
AnswerID: 119168

Follow Up By: Glenno - Saturday, Jul 09, 2005 at 21:45

Saturday, Jul 09, 2005 at 21:45
I hope you dont live in Qld. You cant increase the rolling diameter by more than 15mm. And an engineer cannot certify anything bigger.

Crazy - but thats the advice ive just received in writing from Qld Transport.
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Reply By: Onayr - Thursday, Jul 07, 2005 at 08:08

Thursday, Jul 07, 2005 at 08:08
Have done it to numerous SR5. Not only does it look a hell of a lot better, the 17" Rim and tyre package also increases handling on the bitumen.
We have used - 275/55R17, 255/65R17, 265/65R17, 265/70R17LT. The 265/70R17 did require a 2" lift to fit comfortably, however with standard height anywhere upto 775mm overall diameter will fit with no problems.
It all comes down to application.
I see no problems whatsoever with running the 17", even with so many people condemning the use of them. With bitumen being the predominate useage, the ride and handling of a 17" combination is ideal, expecially when trying to gain a bit of clearance aswell.
As to the off road, by increasing the overall diameter of the tyre the way that you are talking, the actual distance from rim to shoulder of tyre is almost identical to the standard 15" rim and tyre package while still increasing diff clearance.
Obviously, if you were to look at taking the Hilux touring or off roading regularly, I would suggest that you look at ensuring that a Light Truck constructed tyre is used. The added strength and load carrying capacity of these tyres makes them stronger, as well as more puncture and impact damage resistant.
All in all.... I quite like the 17" rims and tyres on the Hilux. I'll have to try and find the photos we have of them with the 17". Looks sensational. The standard wheels just look way too small.
Hope this helps,
Ryano
AnswerID: 119227

Follow Up By: TUFF LUX - Thursday, Aug 04, 2005 at 11:22

Thursday, Aug 04, 2005 at 11:22
Hey Onayr

When you put the 265/70R17 on the HiLux with the 2" lift, was it the new 2005 model Lux? Also, do you remember what offset the wheel was?

cheers- TUFF LUX
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Follow Up By: Onayr - Thursday, Aug 04, 2005 at 11:46

Thursday, Aug 04, 2005 at 11:46
17x8 P25 CSA Explorer.

As a follow up on this one, I am about to put a set of 18" wheels and tyres on one. It's going to look great.
18x8 Advanti Dredd with 285/60R18 Cooper HT+.

Cheers,
Ryano
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Follow Up By: TUFF LUX - Friday, Aug 05, 2005 at 07:16

Friday, Aug 05, 2005 at 07:16
are you talking about the new hilux?
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Follow Up By: Onayr - Friday, Aug 05, 2005 at 08:09

Friday, Aug 05, 2005 at 08:09
Brand spankin' new... straight off the production line.

I'll track down some photos for you of some that we have done already.
Send me an email to ryano@fourbys.com.au and I'll shoot them through to you.
Cheers,
Ryano
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FollowupID: 378885

Reply By: TerraFirma - Thursday, Jul 07, 2005 at 09:36

Thursday, Jul 07, 2005 at 09:36
Ryano, Thanks heaps for your feedback. Of the different combinations you mentioned which one would you recommend for primarily bitumen use and a little extra clearance..? Have you also then used an adapter for the speedo as changing the RD will put the speedo out..?
AnswerID: 119241

Reply By: Onayr - Thursday, Jul 07, 2005 at 16:01

Thursday, Jul 07, 2005 at 16:01
Here is a bit of a compilation for you....
SIZE OD Extra Diff Ground Speed
Clearance when speedo reads 100km/h
255/70R15 738mm 0mm 100km/h (Standard Size)
275/55R17 738mm 0mm 100km/h
255/65R17 763mm 12.5mm 103.43km/h
265/65R17 776mm 19mm 105.19km/h
265/70R17 804mm 33mm 108.78km/h

Probably the most common fitment we do is the 255/65R17.
Cheers,
Ryano
AnswerID: 119288

Follow Up By: TerraFirma - Thursday, Jul 07, 2005 at 21:50

Thursday, Jul 07, 2005 at 21:50
Thanks for that, can't find Cooper tyres though in a 255/65R17..???
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Follow Up By: geocacher (djcache) - Friday, Jul 08, 2005 at 21:20

Friday, Jul 08, 2005 at 21:20
And you won't if you need one in any brand if you find yourself in a tight spot in any brand outside the CBD.

Also make sure you maintain or exceed your load index or you'll void your insurance on your shiny new toy, and be liable for anything you hit.

Dave
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Reply By: rooboy - Saturday, Jul 09, 2005 at 19:14

Saturday, Jul 09, 2005 at 19:14
Hey There.

I got my new TD SR5 Hilux last week. I replaced the original wheels with a set of 17 inch Speedy Grande ( which are Toyota Prado Rims ) and a set of Coopers 265/65/17 ATR. An absolutely magnificent combination. Id highly recommend it. It looks fantastic and drives superbly.
AnswerID: 119582

Follow Up By: TerraFirma - Monday, Jul 11, 2005 at 13:48

Monday, Jul 11, 2005 at 13:48
Hey Rooboy, Thanks for the feedback, I was tossing between the 265 x 65's or the 275 x 65's in the 17. How does the rig go, I am waiting , probably need to wait another 2 months. Keep me posted with how you find the new toy..
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