140/80-17

Pdrhound

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Its a secret. Saw 1 report they measured the same width at =psi. But you should see me cut a board, measuring is an art.
 

EricV

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Yes, it fits. Taller aspect ration, but on the wider Super Ten rim, it sits shorter, so sort of a wash and may or may not stress the tire more under load. Keep in mind that bikes that take this size are typically lighter than the fat Super Ten.
Groan.jpg
 

Don in Lodi

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Pay close attention to the load capacities.
 

Pdrhound

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Ok. Good info on the load info, i will check. I got a 7000mile trip in sept and i want to mount a tite that will go the distance. 150/70-17 the e07 no longer exist but they do in 140/80-17
 

Don in Lodi

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There's the E07plus now, though it prolly won't make your whole trip. The 140 is a 69T, 69 is 716 pounds, T is 118mph. By the numbers it should be a good tire.
 

EricV

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Ok. Good info on the load info, i will check. I got a 7000mile trip in sept and i want to mount a tite that will go the distance. 150/70-17 the e07 no longer exist but they do in 140/80-17
Moto Z GPS Tractionator or Heidenau K60 Scout will both do double that easily. Both are 50/50 bias ply tires. The GPS Tractionator is better in the rain, but the K60 doesn't suck, except when literally brand new. 50 miles in, no issue for many.
 

Longdog Cymru

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I don’t get it!

A manufacturer builds a machine, be it a car or a motorcycle, tests the machine and fits the appropriate tyres for the use of that machine and yet people want to fit non-standard size, non-approved tyres which can affect your road worthiness and insurance and ultimately your safety.

Why, after spending a considerable amount of money on your vehicle of choice would you compromise yourself? Just to save a few £s/$s/€s!
 

EricV

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I don’t get it!

A manufacturer builds a machine, be it a car or a motorcycle, tests the machine and fits the appropriate tyres for the use of that machine and yet people want to fit non-standard size, non-approved tyres which can affect your road worthiness and insurance and ultimately your safety.

Why, after spending a considerable amount of money on your vehicle of choice would you compromise yourself? Just to save a few £s/$s/€s!
You poor Brits don't get it. That's Ok mate. ;) No insurance issues here in the States. No MOT. A tyre is a tire is a tyre. Black and round with tread. The manufacturer isn't the last word on anything, just the starting point. He asked the wrong question, but that's what the forum is about, learning and sharing with each other.

The world won't end if you toss on a tire size not spec'd by the manufacturer, but it's on you to pay attention to what's going on and see if it works ok or not. And if not, no whining, you chose to take the risk. Deal with it and move on. I suspect the 140 will wear faster than the same tire in a 150 on the Super Ten. Which negates the reasons the OP wanted to know about the 140 in the first place. Choosing a known good performing tire in the correct size is a better option. I've run ten sets of K60s and know how those tires wear for me very well. I loved the Mitas E07 Dakar even better, but they are no longer available in our sizes. :confused:

The Moto Z GPS Tractionator is a good choice. Better in the wet, great longevity, good road manners on pavement. Possibly better off pavement than the K60. And you can swap the rear different directions depending on your needs. 50/50 one way, off pavement the other. It's marked on the sidewall for that.

Just a bit of advice Longdog, chime in with information! Just telling someone you don't like their idea isn't all that helpful. Share your personal and direct, first hand experience, not just your opinion based upon your specific island in the world. :cool:
 

Pdrhound

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There have been some bad reports lately on K60 failures. To tell you the truth they look scary as hell. Lotsa pics of pre mature cracks in the tractionator

Maybe in england you can't pull off a 7000 mile trip? :p look up k60 failures and then ask me about safety.

What I dont get is why Mitas built what sounds like the best possible tire for most of us and then ruined it. I simply have no time or money for a $180 dollar tire that lasts 3500 miles. My 76 dollar shinkos 705 work very well short of mud and last 3600 miles. Mitas really will simply become irrelevant. I'm guessing that the shinko 806 would even out perform the mitas off road for under $100.

I'm actually surprised there have not been more trying different sizes. I've run lotsa sizes on other bikes and found benefits.
 

RCinNC

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And here's another thing that your post doesn't address, Longdog. Engineers decide on an appropriate tire to use on a motorcycle, they don't necessarily conduct extensive tests on the bike/tire combination. They choose a tire that has the appropriate load/speed rating and with a profile that'll physically fit the bike, and they choose that OEM tire based on a business relationship they have with a tire manufacturer. They don't check every single tire out there and decide if it'll work, because that would be a waste of resources for the motorcycle manufacturer. They don't need to "approve" every tire; they just need to find one that meets their specs, and that becomes their approved tire. When the manufacturer specifies a tire for a bike, what they're saying is "we're willing to assume the liability for this tire/bike combination in the event that there's a failure that stems from this combination". That's all. It has nothing to do with the idea that "this size tire is the only size that's been intensively tested by our engineers, and all other tires are dangerous".

And sometimes, the manufacturers just blow off the whole process, like Ford did with the Firestone tires on their early Explorers.
 

RCinNC

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I wouldn't write off the Tractionators yet. Those Shinko 705's that many of us are very fond of experienced some of that same cracking some years back, including some pretty radical separations of the blocks from the carcass. Shinko got it under control, and the 705 is my go-to tire for general use.

I won't buy a set right now, but I'll wait til next year and see if they've resolved this before I write them off as a manufacturer. I'm a big fan of the old Mitas E07, and I was definitely disappointed in the fact that they dropped the size for the big ADV bikes and replaced it with the "+" model. I haven't tried one yet, so I don't know how the longevity will be for me of their new version.
 

EricV

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There have been some bad reports lately on K60 failures. To tell you the truth they look scary as hell. Lotsa pics of pre mature cracks in the tractionator
I've run 10 sets of K60s on my Super Ten, all since 2012. Failures? Lately? You're talking about 2012/13 era. Changes were made. Got links if you have seen recent stuff?

As for the cracking on GPS Tractionators, it does not cause a failure unless you're doing serious tire spinning. Lots of Shinko lug cracking reported in the past too. Mostly a non-issue there as well. Moto Z has changed some of their recommendations on tires sizes on some bikes too. The wife's GSA with a GPS tire has cracks. They haven't really changed in the last 5k miles of mostly road use. Moto Z does not recommend the 170 version for that bike, instead suggesting the 150. They feel, for their tire, the 170 is too wide a tire for that rim width. I've not run the GPS on my Super Ten. And have another set of tires to wear out waiting in the garage, so won't get to try them for a while yet. Still, based upon my direct experience with them on my wife's GSA and the conversations with Moto Z, I would not hesitate to use them and likely will in the future.
 

Longdog Cymru

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RCinNC and EricV, gentlemen, I fall at your feet at your far superior knowledge and development and testing procedures when compared to Yamaha or indeed any other motorcycle manufacturer out there, but I would rather put my trust and confidence in people who know what they are talking about. Here’s a surprise for you guys, but although tyres may very well be black and round, they certainly aren’t all the same.

I just knew that as soon as I pressed the very first key of my previous post that the full weight of American knowledge would descend on me, but what the heck, you guys also voted for Trump! LOL
 

RCinNC

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Well then, Longdog, if you knew your knowledge wasn't sufficient to comment intelligently on the subject, why'd you waste your time? Were you getting bored waiting for Brexit? I feel compelled to ask you how your training at RADA is going, because with as much melodrama as you threw into your post, surely you're at the head of your class.
 

OldRider

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RCinNC and EricV, gentlemen, I fall at your feet at your far superior knowledge and development and testing procedures when compared to Yamaha or indeed any other motorcycle manufacturer out there, but I would rather put my trust and confidence in people who know what they are talking about. Here’s a surprise for you guys, but although tyres may very well be black and round, they certainly aren’t all the same.

I just knew that as soon as I pressed the very first key of my previous post that the full weight of American knowledge would descend on me, but what the heck, you guys also voted for Trump! LOL
So longdog who are these brilliant people you speak of that know what they're talking about. Are they one's that built the S10 headlight wiring harness and had to replace thousand that either burnt up or were about to? Are they same brains that took two years to figure out the S10 had a faulty clutch basket? Or what about the cam chain tensioners, if they're so damn smart how did they screw that up the first time around? Then there's the main wiring harness that it took them six years to figure out was a bad design.

As far as the clutch basket screw up, some of the guys on here that you were dissing had the clutch basket failure figured out before Yamaha did and were working on a new design.
 
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