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Discussion Starter · #1 ·
I want to go with Tubed Karoo 3 tires but the 150/70-18 size for the rear comes only in tubeless variety, and almost twice the price.
Is it OK to mount 140/80-18 on the rear?
I want to reach out to the collective wisdom & experience of the forum before rolling the dice.:grin2:

TIA

PS, if this issue has been discussed in the past, please point me in that direction
 

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Not sure myself but I have one left over that I am planning to use if I do not see any negative discussion. I am going to use a heavy duty tube and the 140/80/18. It will probably sit a bit taller from my calculations. Just running on the stockers for now to get use to the feel and ride of the AT.
 

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Discussion Starter · #4 ·
I want to go with Tubed Karoo 3 tires but the 150/70-18 size for the rear comes only in tubeless variety, and almost twice the price.
Is it OK to mount 140/80-18 on the rear?
Does it bother you that it's tubeless? If so why? Or is it just the price?
My concerns are:
1) the tubeless is almost double the price
2) the tubeless most likely have a stronger bead making it harder to mount for the home mechanic
3) the tubeless sometimes wear holes in the tube causing a flat
 

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I've just fitted a set of tubeless Karros as I've used them before and like em. It never occurred to me that the walls would be stiffer so I hope that doesn't bite me in the butt when I need to do a trail side repair. I paid £173 for both including fitting which I thought wasn't a bad price but hey. I did want to try the Anakee but it's still not available despite being shown on the Michelin website.
Ride safe and often :grin2:
 

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I want to go with Tubed Karoo 3 tires but the 150/70-18 size for the rear comes only in tubeless variety, and almost twice the price.
Is it OK to mount 140/80-18 on the rear?
I want to reach out to the collective wisdom & experience of the forum before rolling the dice.:grin2:

TIA

PS, if this issue has been discussed in the past, please point me in that direction
Hi 16rally, I just fitted a PIRELLI SCORPION RALLY 140/80-18 for a ride this weekend coming, I liked it as its pretty aggressive, no problems fitting it, yes it does feel a little taller, although I did not actually measure it against the std 150/70-18, anyway the big test will be this weekend, I'll try to remember to let you know how it goes.
 

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Discussion Starter · #7 ·
Hi 16rally, I just fitted a PIRELLI SCORPION RALLY 140/80-18 for a ride this weekend coming, I liked it as its pretty aggressive, no problems fitting it, yes it does feel a little taller, although I did not actually measure it against the std 150/70-18, anyway the big test will be this weekend, I'll try to remember to let you know how it goes.
Please report back.
I will hold off on my tire purchase until I hear back from you.

Thanks
 

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16rally,
For what it's worth, I have Karoo 3's (150/70-18 on the rear) and honestly didn't realize they were tubeless until I read your post. I have had them on for around 2,000 miles and really like them - both on and off road (I ride around 50/50).
 

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Please report back.
I will hold off on my tire purchase until I hear back from you.

Thanks
Hi 16rally, Sorry for the late reply, The 140/80-18 Pirelli was perfect.
I have done 2 Rides on it now, about 900kl 50/50 road /dirt and It works a treat :)
And only 1/3 worn which I think is pretty good considering the harsh Gravel Roads I ride.
My advice if you find a 140/80-18 that you like, go for it, Oh and Tube Type or Tubless does not really matter if you're using a tube anyway.
In fact I already brought another one for my next change :)
 

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Is the Pirelli scorpion I see referenced the MT-90AT? I like the looks of that tire and think it may perform better off road than the Scout K60 I normally run. But since this bike will see more off road, I'd like a more aggressive tire.

NC
 

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Just finished a 14,000 kilometre journey on a 140 tire (Avon Trekrider) - no issues at all.
 
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