Tyres for 5.5" rims

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Originally Posted by pfillery

the worry using a 235 or similar is that these would be tubeless tyres I'd imagine, whereas the series rim is a tube rim, might find the tube wears on the inside of the tyre.

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There is much debate on the internet about this. However I have used tube in tubeless tyres for years (try getting "nice" tyres in tubed flavour these days!) without problems. After seeing comments on this forum and several others, I called Coopers and asked them. To be honest they seemed to regard the question as ridiculous, stating that there is no problem whatsoever and that fitting tubes in tubeless tyres (for example on split rims) is standard pratice. They were very surprised that anybody should even consider it worth asking about!

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Originally Posted by pfillery

Maybe it was just the car! The cruisers use the 7.50 road grippers as standard equipment, maybe the hilux is just lighter at the rear end.

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It certainly is, and that will contribute, and an unladen Hilux is always a touch skittish. However the new Hilux came with "Duelers" (one of the many variants of Dueler!) and didn't show the problem unless pushed hard. Then I changed to Coopers S/T's and the problem reappeared.

There are many factors that contribute. Hardness of the rubber, pattern of the tread, amount of tyre contact, water dispersing ability, even the stiffness of the suspension. Not least is the surface of the road - try driving up Scenic Hill out of Lithgow when the road is "damp"!

The older Hilux had Road Grippers followed by S/T's, and the new one had Duelers followed by S/T's and the fish tailing in the wet was worst on the Grippers and best (least) on the Duelers. The Road Grippers, on occasion, would spin in a straight line on wet roads even when accelerating fairly gently in a queue of traffic.

And an 88" probably doesn't have much more weight on the rear tyres than a Hilux.....

After my negativity about Road Grippers.......

I've just discovered that my local Toyota dealer almost always replaces the split rims and 7.5" Road Grippers that are still supplied as standard on Land Cruisers before the customer collects them. As a result, there is an ongoing source of these tyres (a set every week or two), brand spanking new, on Land Cruiser split rims. They are currently selling them at $200 each. Obviously they need to be removed and fitted to the relevant LR wheels, but this is still significantly cheaper than the Maxxis or Cooper tyres that I had been considering, and far and away cheaper than the $385 (each, tyre only) I was quoted for Road Grippers from the tyre dealer.

Moving them to the LR rims isn't a problem, the tubes are new and should be fine. I just need to figure out what to do with a set of Toyota split rims!

Quote:

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There is much debate on the internet about this. However I have used tube in tubeless tyres for years (try getting "nice" tyres in tubed flavour these days!) without problems. After seeing comments on this forum and several others, I called Coopers and asked them. To be honest they seemed to regard the question as ridiculous, stating that there is no problem whatsoever and that fitting tubes in tubeless tyres (for example on split rims) is standard pratice. They were very surprised that anybody should even consider it worth asking about!

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You have to be careful that there are no stickers on the inside. A friend fitted tubes to BFG ATs which had a sticker inside and all tubes failed in a couple of KKs.
Regards Philip A

I just fitted new 7.50 16 light truck tyres (12 ply) to my series 3. They are Bridgestone (not sure what the model or type is) as fitted to the new Isuzu trucks, these are the Japanese made ones not Chinese. They look original and very similar to what was fitted on the vehicle new (or what I would imagine they would look like), nice deep tread and very quiet tyre compared to the cheapies that were on it.

Best part - $189 each fitted and balanced. RRP new is over $300, even compared to a dunlop sp road gripper at $260 or so they were a bargain.

Rims painted, new tubes and back on the car and I love them. Lots of tread, great in the wet too.

I will post some pics as soon as I take some.

Just shows you can find nice looking tyres to keep the rugged look, plain and nothing fancy.

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Originally Posted by Warb

After my negativity about Road Grippers.......

I've just discovered that my local Toyota dealer almost always replaces the split rims and 7.5" Road Grippers that are still supplied as standard on Land Cruisers before the customer collects them. As a result, there is an ongoing source of these tyres (a set every week or two), brand spanking new, on Land Cruiser split rims. They are currently selling them at $200 each. Obviously they need to be removed and fitted to the relevant LR wheels, but this is still significantly cheaper than the Maxxis or Cooper tyres that I had been considering, and far and away cheaper than the $385 (each, tyre only) I was quoted for Road Grippers from the tyre dealer.

Moving them to the LR rims isn't a problem, the tubes are new and should be fine. I just need to figure out what to do with a set of Toyota split rims!

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I don't believe you can use the tubes on the LR rims. The splits have those long brass valves and the LR rims have the short rubber types so they are not the same (so I was told when I looked at this option).

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Originally Posted by pfillery

I don't believe you can use the tubes on the LR rims. The splits have those long brass valves and the LR rims have the short rubber types so they are not the same (so I was told when I looked at this option).

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Yep, now I think about it you're right!!

Ermm....Lochie, you may have that sidewall warning a little wrong. It actually says "Do not fit to a 16.5 inch rim". It's not a common 4x4 wheel size, but comes up sometimes on heavy machinery and some aircraft. 7.50R16s and 235/85R16 tyres are fine on 6.5" wide rims as they are fitted onto 130s from the factory. And Series 2 and 101 Forward Controls have 6.5" wide rims as standard, wearing 9.00x16 (255/100R16) tyres.

Dan.
69 2A 88" pet4 (still in disguise), 68 2B FC pet6 (still dozing quietly), plus 10 others.

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Originally Posted by dandlandyman

.... And Series 2 and 101 Forward Controls have 6.5" wide rims as standard, wearing 9.00x16 (255/100R16) tyres.

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None of my Series 2's have 6.5" rims, the LWB's are all 5.5" (272309) and the SWB's are 5" (can't remember the number).

I can't vouch for the Forward Controls, but I'm fairly sure that in the Bonneted Control vehicles with 16" wheel nothing pre-Defender had even 6" rims, and the 6.5" are reserved for the 110 and 130 HD's (Wolf's).

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Originally Posted by pfillery

I just fitted new 7.50 16 light truck tyres (12 ply) to my series 3. They are Bridgestone (not sure what the model or type is) as fitted to the new Isuzu trucks, these are the Japanese made ones not Chinese. They look original and very similar to what was fitted on the vehicle new (or what I would imagine they would look like), nice deep tread and very quiet tyre compared to the cheapies that were on it.

Best part - $189 each fitted and balanced. RRP new is over $300, even compared to a dunlop sp road gripper at $260 or so they were a bargain.

Rims painted, new tubes and back on the car and I love them. Lots of tread, great in the wet too.

I will post some pics as soon as I take some.

Just shows you can find nice looking tyres to keep the rugged look, plain and nothing fancy.

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I'd be interested to hear what the ride is like on 12 ply tyres.

My Series 1 has 8-ply 7.00 x 16 Road Trek Major's (the spare is an original RTM with 6 plies) and the ride is quite harsh although springs etc. also have an influence.

I've been offered some bar tread 7.50 x 16 12 ply tyres and I haven't followed up because I think the sidewalls will be too stiff so it would be interesting to get some feedback.....

Colin

The ride is really good actually. a lot quieter than the Otani 14 ply nylon (rag) tyres it had on it. Lots of flat spots on those, noisy and quite rough. I find that the fuel economy is better on the new ones to the extent of about 45km more to a tank of gas, the ride is smoother and quieter and they work really well in the wet with good grip and no feeling of control loss. While the Otanis had lots of "lugs" out the side, these are a narrower surface actually in contact with the road but a better tread pattern according to the tyre place.

I'll post some pics and specs if you are interested. So far I'm well impressed with them. The old ones will do as tyres for a trailer maybe, wont really matter too much about the flat spots.

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Originally Posted by gromit

I'd be interested to hear what the ride is like on 12 ply tyres.

My Series 1 has 8-ply 7.00 x 16 Road Trek Major's (the spare is an original RTM with 6 plies) and the ride is quite harsh although springs etc. also have an influence.

I've been offered some bar tread 7.50 x 16 12 ply tyres and I haven't followed up because I think the sidewalls will be too stiff so it would be interesting to get some feedback.....

Colin

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