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Old 02-12-2013, 10:10 AM   #1
tar356 OP
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140 vs. 150 rear tire

I don't really want to start another "which brand of tire" thread, but had a quick question about tire sizes.

I'm going to try a set of Heidenau K60s this time around, and noticed that they make a 140/80-17 and a 150/70-17.

Is there anyone here that has tried both, and would be willing to give their impressions??

Thanks,
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Old 02-12-2013, 10:44 AM   #2
SkiFly01
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I ran a mitas e-09 in the 140/80/17 flavor. You get a better choice of some off-road tires and your speedo will be much closer to being correct along with some cheaper prices. Other than that you won't feel much of a difference. However, in the Heidi's the 150/70 is a stronger tire frame meant to hold more weight.
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Old 02-12-2013, 01:46 PM   #3
tar356 OP
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Thanks for the reply...

I travel light, but good thought about the load rating.

Two more questions:

1. What are the max load ratings of those two sizes?

2. What is the overall diameter of each?
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Old 02-12-2013, 01:56 PM   #4
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Ok, answered my own questions....

According to the Heidi site, they both have the same speed and load ratings. The 140 is 26.46" overall diameter, and the 150 is 25.83". The max rim width for the 140 is 3.75, and 4.5 for the 150.

I would still like to hear more real world user info.
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Old 02-12-2013, 03:24 PM   #5
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I could be mistaken, but I thought the 140 tires had the more aggressive tread pattern. The 150 was changed to the more road oriented flat center strip.
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Old 02-12-2013, 03:32 PM   #6
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Originally Posted by hikertrash View Post
i could be mistaken, but i thought the 140 tires had the more aggressive tread pattern. The 150 was changed to the more road oriented flat center strip.

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Old 02-13-2013, 01:38 AM   #7
OzRob
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I used to run the K60 in a 140 on the 1100GS, good tyre and averaged around 10,000km for a commute tyre.
The 150 is around $100 more here in Oz.
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Old 02-13-2013, 06:13 AM   #8
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Originally Posted by tar356 View Post
Ok, answered my own questions....

According to the Heidi site, they both have the same speed and load ratings. The 140 is 26.46" overall diameter, and the 150 is 25.83". The max rim width for the 140 is 3.75, and 4.5 for the 150.

I would still like to hear more real world user info.
I went with the 150 due to the centre strip that improves road feel and tire life. Also, with the smaller diameter, you lower your gearing slightly vs. the 140.

Cheers, James
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Old 02-13-2013, 09:06 PM   #9
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I have had both on my 1150GS, like stated earlier the 140 has a more aggresive tread, no center strip. I loved the 140 tread pattern, it was great on gravel and fireroads. It also was used for bombing up and down Bear Tooth Pass several times. Had no issues with grip. Lasted about 6000 miles could of got another 1000 out of it but really squared off in last miles. Fine for gravel roads but not for twisties. Replaced with new 150 and the tire is a little smoother on hiway but I would call it a 35% of road if 140 tread is a 50% offroad. Took it up to Cooke City and it worked pretty good, just not as much traction on loose rocky terrain. Have about 4500 miles on it now and hopefully will get 7500-8000 out of it. Front tire has been wearing unbelievable, over 10000 miles on it and just starting to show signs of cupping. Must be all the gravel riding we do, easy on fronts and not so easy on backs. Would not hesitate to buy another 140 after 150 wears out.
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