Kuhmo MT51 mud terrain tyres

[onebob]

Is anyone running Kuhmo MT51 tyres on their D2 - i’m seriously considering a set of 235/85/16s to go onto stock steel rims. I have an LRA 40mm spring lift and with the rims being standard offset I’m not expecting rubbing issues..

[twr7cx]

I have an LRA 40mm spring lift and with the rims being standard offset I’m not expecting rubbing issues..

On standard offset wheels, you will likely have rubbing on full turns unless your extend the stoppers out.

[onebob]

On standard offset wheels, you will likely have rubbing on full turns unless your extend the stoppers out.

Thanks - I will get under the front and see what length stops i have - hopefully i have the long 29mm stops fitted from factory...

[ballbag]

Yeah I’m running those tyres but in a different size.

The name is misleading, they’re much more an A/T than M/T.

Seem to get noisier as they wear.

LT construction and ride is pretty harsh.

[Zeros]

140079

Ive just put a set of Kumho AT51’s on my Defender. Only done 1000km, but pretty happy with them. Great in the wet today, really grippy on gravel. Slight road hum on fast corners, otherwise quiet. I like them so far. Good price too.

[JR1]

I’m running 245/70/16 on my D2. Have put 5000km on them. Very happy. A good inbetween AT & MT tyre. There is a slight noise increase in town- but you have to listen out for it. Get noisy at 100km, but not nearly as bad as a full MT. Really happy in the wet too. Have only been off road a few times with them, but haven’t had any dramas. Price is pretty reasonable. Would recommend.

[twr7cx]

Thanks - I will get under the front and see what length stops i have - hopefully i have the long 29mm stops fitted from factory...

If not they're not then they're a standard thread type, so you can use a normal bolt, preferably a cap screw (alan key head) and a nut on the thread to lock it off, that way you can custom length them to the shortest possible with no full lock rub and maximising steering.


Yeah I’m running those tyres but in a different size.

The name is misleading, they’re much more an A/T than M/T.

Are you sure that you have the MT51 then and not the AT51 - one is an all-terain and one is a mud-terrain with the same two digit code which can confuse.

ROAD VENTURE MT51 (https://www.kumho.com.au/tyres/4x4/road-venture-mt51/)

ROAD VENTURE AT51 (https://www.kumho.com.au/tyres/4x4/road-venture-at51/)

[ballbag]

Yep, I’m sure[emoji106]

[onebob]

If not they're not then they're a standard thread type, so you can use a normal bolt, preferably a cap screw (alan key head) and a nut on the thread to lock it off, that way you can custom length them to the shortest possible with no full lock rub and maximising steering.

ROAD VENTURE MT51 (https://www.kumho.com.au/tyres/4x4/road-venture-mt51/)

ROAD VENTURE AT51 (https://www.kumho.com.au/tyres/4x4/road-venture-at51/)

Thanks for the useful advice.... I did check and I’ve got the 23mm steering lock stop bolts fitted .

[goingbush]

Thats funny, Ive got MT51 225/75R16 on my Lightweight and they are looking different again

https://www.aulro.com/afvb/images/imported/2018/05/151.jpg

[RobMichelle]

Yep I'm running them as well, rotate when service vehicle, I need to rotate on rims shortly due to a bent steering rod, no fault of tyre. As ball bag mentioned they seem to be getting noisier with age about 35 thou now, but still happy with grip.

[CU55TM Disco]

Is anyone running Kuhmo MT51 tyres on their D2 - i’m seriously considering a set of 235/85/16s to go onto stock steel rims. I have an LRA 40mm spring lift and with the rims being standard offset I’m not expecting rubbing issues..

So, did U get the Mt51s' or go with something else???

I ask as I have been looking as these latley. Currently Im running KM2's in 265/75 guise but the road noise is quite unbearable (id say 40% tread remaining)

Have heard reports of uneven tread wear on the Mt51s but these were fitted to an IFS truck, so may have some alignment issues.

Keen to hear some reports back!

[onebob]

So, did U get the Mt51s' or go with something else???

I ask as I have been looking as these latley. Currently Im running KM2's in 265/75 guise but the road noise is quite unbearable (id say 40% tread remaining)

Have heard reports of uneven tread wear on the Mt51s but these were fitted to an IFS truck, so may have some alignment issues.

Keen to hear some reports back!

I have bought the steel rims and are now waiting for my bank balance to recover before purchasing the MT51s. I have a quote for $265 each, fitted and balanced.

[Zeros]

So, did U get the Mt51s' or go with something else???

I ask as I have been looking as these latley. Currently Im running KM2's in 265/75 guise but the road noise is quite unbearable (id say 40% tread remaining)

Have heard reports of uneven tread wear on the Mt51s but these were fitted to an IFS truck, so may have some alignment issues.

Keen to hear some reports back!

How often do you actually use them in the mud? The AT51’s will be quieter on road. Just sayin.
Mine were $260 each from Tyrepower.

[onebob]

So, did U get the Mt51s' or go with something else???

I ask as I have been looking as these latley. Currently Im running KM2's in 265/75 guise but the road noise is quite unbearable (id say 40% tread remaining)

Have heard reports of uneven tread wear on the Mt51s but these were fitted to an IFS truck, so may have some alignment issues.

Keen to hear some reports back!

Hmmm... your 265/75 KM2s are only 2mm smaller in diameter to the 235/85 MT51s l’m going to get. Did you have to invert the wheel carrier bracket for your KM2s to clear the rear bumper. I have a steel rear bumper and do not mind if the wheel rests on it...

[onebob]

I found my answer in a June 2011 topic “largest size tyre on spare wheel carrier”
I’m posting from my phone and haven’t worked out how to link to it in this post ...

[twr7cx]

Once you flip your wheel carrier your sorted for the future without having to worry about it further or any other issues. It's fairly straight forward to do and doesn't take too long.

I currently have 285/75R16 (33") tyres on the standard spare wheel carrier flipped without any rubbing/clearance issues.

[CU55TM Disco]

Hmmm... your 265/75 KM2s are only 2mm smaller in diameter to the 235/85 MT51s l’m going to get. Did you have to invert the wheel carrier bracket for your KM2s to clear the rear bumper. I have a steel rear bumper and do not mind if the wheel rests on it...

I didnt want to flip the carrier as it offsets it closer to the middle of the door, and, requires a slight mod to then clear the rear window wiper.
I just made a bracket to relocate the studs about 45mm higher (for memory)

and Yes, the 235/85 and the 265/75 are essentially the same height tyre, I chose to go 265s as there seem to be more options for tyre choice.

I actually just replaced my KM2s with a set of Falken Wildpeak AT3w in the same 265/75-16 size. $185 a tyre, cant complain about that!

[onebob]

I have bought the steel rims and are now waiting for my bank balance to recover before purchasing the MT51s. I have a quote for $265 each, fitted and balanced.

Got them today and stopped at a roadhouse on the way home to fit them. No rubbing, very happy.......
141718

[Zeros]

I’m liking my Kumho AT51’s. Quiet on road, excellent grab on dirt. They’re surprising me. 👍

[RobMichelle]

I got my mt51s flipped on rims and rotated today, just under 3 years old and 33000 km on them, they are cracking on sidewall at side lugs hopefully picture will show it, tyre fitted showed me 2 tyres are suffering from it at different intervals on tyre.
Mm can't seem to add pictures after updating sill ph

[RobMichelle]

Hope this works https://uploads.tapatalk-cdn.com/20180712/628191d523beb571010622b8ac73099d.jpg

[RobMichelle]

If you can blow up pic you will see the cracks it's on all 4 tyres [emoji20] [emoji20] tyre fitter asked what speed I sit on, I said it's a land rover not a race car only sit on speed limit, no real explanation as to why this could be happening, il email kumho see if they have an explanation as to why.https://uploads.tapatalk-cdn.com/20180712/6a7de1da412af5a44c2caf78889ad546.jpg

[RobMichelle]

Try again https://uploads.tapatalk-cdn.com/20180712/fb2e78660b8b62f69c0bfcb0f2f4dda2.jpg

[incisor]

After the run i have had with kumho on my Fairmont and their bull**** warranty, I wouldn’t fit them to a wheelbarrow

Multiple tyres constantly going out of shape, leaking air, not holding a balance, it’s fair to say i am well and truly over the brand

[onebob]

If you can blow up pic you will see the cracks it's on all 4 tyres [emoji20] [emoji20] tyre fitter asked what speed I sit on, I said it's a land rover not a race car only sit on speed limit, no real explanation as to why this could be happening, il email kumho see if they have an explanation as to why.https://uploads.tapatalk-cdn.com/20180712/6a7de1da412af5a44c2caf78889ad546.jpg

Looks like stress cracks in the carcass .... do you tow? either on or offroad. The shop that fitted mine stressed that with these tyres I must at all times recognise the importance of, and always take time to use appropriate tyre pressures whilst taking into account load , speed and terrain. They particularly stressed that after offroading i should not drive any distance on the blacktop with out first airing up. It’s common sense stuff that i do adhere to and it was plain to them from conversation, my age, and truck that i’m no beginner but they made a point to say it........

[RobMichelle]

I feel I have always been good with pressures, yes tow a pop top but didn't think I did that much on these tyres, pressures always re adjusted before black top.
All 4 are showing same cracks, I did email kumho, the fitter contacted me today, seems like they are a warranty job so that's a good outcome

[onebob]

What was the ultimate outcome, have you got new tyres, what was the reason given for the failure (ie cracks)

[ozscott]

Looks like stress cracks in the carcass .... do you tow? either on or offroad. The shop that fitted mine stressed that with these tyres I must at all times recognise the importance of, and always take time to use appropriate tyre pressures whilst taking into account load , speed and terrain. They particularly stressed that after offroading i should not drive any distance on the blacktop with out first airing up. It’s common sense stuff that i do adhere to and it was plain to them from conversation, my age, and truck that i’m no beginner but they made a point to say it........Sounds almost like they knew the tyre was tender? I am good with pressures but sometimes dont air up to what I should for short runs and never had a tyre crack. Also LR tyre pressures are low anyway particularly the front. I wouldn't go anywhere near a tyre that does what these are doing. Cheers

[RobMichelle]

I go in on Saturday morn9ng for replacement tyres, under warranty, no explanation as yet.

[trout1105]

I had a set of tyres with cracks like that on the van (not Khumo) and blew 2 of them in 150km, I replaced them with a new set of Mickey Thompson AT's.
I have never used Khumo tyres so i don't have any opinion on the brand But i do know that cracks like yours are pretty terminal.

[ozscott]

For sure. I had a crack years ago on a boat trailer and it blew. I wouldn't drive on the tyres as shown! Well...not over 50kph. Cheers

[RobMichelle]

Yeh ok trout,jeepers there's a lot of cracking on 3 and less on 4th, I did love the performance of the tread in all applications but am a bit out out by sidewalls.
I have to put kumho back on for warranty and will go the at51 see how that goes.

[trout1105]

You might have been sold some Old stock and thats why they were cracked/perished, the cracked tyres on the van were 10 years old.

[CountryHonk]

Just picked up this thread and have to comment re my Khumo tyres which would be around 6 years old now and have given bloody good service.

I bought 6x Khumo LT265/75/R16 for our RRC with 2" lift and put them on some Disco rims from the Jordan Rovatech guys in Bentley (Perth - Kevin). They were $250 each around 2013.

Before the Khumos, the RRC was wearing totally ridiculous (in my mind) Maxxis Bighorn mud tyres that were of zero value anywhere I drive - noisy at speed, shovels in the sand, handled terribly etc. Okay on rocks but not important enough to put up with the rest of their annoyances. Not everyone agrees with me on that though as someone bought them for $200 each on black sunraysia style rims. Probably for a Patrol.

The car has done only 45000k since putting them on and the tyres are no where near needing replacing. Mostly off road coastal/beach and gravel tracks - rock climbing. They would be fairly hard now which probably forms part of the reason for good ks, and the 2 extras I bought for spares have never been needed so they're both still 100% tread.

I would buy these again in a wink given how they have lasted, price and strength. Remind me of tyres of old like the Olympic Steelflex I used to run on my HK/T utes which seemed to last for ever. Have also run KL21 Khumos on our XC90 - city, highway and gravel (to get to the RRC) and now Khumo Crugen for same car. Also good.

I would expect everyone in this forum would be specifying "LT" build for any tyres they buy for 4WD? Maybe the failures are happening on standard wall Khumo tyres?

Matt

[scarry]

Try again https://uploads.tapatalk-cdn.com/20180712/fb2e78660b8b62f69c0bfcb0f2f4dda2.jpg

These tyres are definitely LT,note the load rating.

[DiscoClax]

The LT at the start of the size is a bit of an indicator, too [emoji14]

[onebob]

I got my mt51s flipped on rims and rotated today, just under 3 years old and 33000 km on them, they are cracking on sidewall at side lugs hopefully picture will show it, tyre fitted showed me 2 tyres are suffering from it at different intervals on tyre.
Mm can't seem to add pictures after updating sill ph

I chose today as the time for the next 5 wheel rotation on the D2.... I have now had my Kuhmo MT51’s fitted for 14 months, and they’ve since done 42000km with no real appreciable wear. Actually I’ve been in every way happy with these tyres until today when I noticed cracks alongside the sidewall shoulder lugs on one of the four road wheels. The other three are starting to develop cracks however the spare shows no outward signs of cracking yet ... time will tell. I’ll be going back to the tyre fitter this week to have a chat!
More soon....
153719153720

[ozscott]

For.sure. That's not right. Cbeers

[onebob]

First up, I contacted Khumo and they said that they’re aware of the problem. They call it “torque cracking” adding that it is cosmetic and that it doesn’t compromise tyre safety. However, the sidewall rubber compound has apparently been altered to deal with the issue and they offer a pro rata replacement warranty for affected tyres. The next step is off to the tyre fitter to to get them assessed. More soon🤞🏽