I just returned from a 3200 mile spin where I had Full Bore M40s waiting on little less than half way through. So I have about 1800 miles on them ... or so.
This was probably 500 miles interstate, 1300 state roads. Maybe 20miles gravel. Maybe 450 wet roads. All well laden in terms of me and gear.
The tires seem to be wearing well. I am guessing I will get the 6000-8000 that we see reported on the 705s. They seem to perform well in the wet. The little bit of gravel I left them fully inflated as specified on sidewall. So I really do not think with that and 20 miles I have anything to report in that area.
I am not a very aggressive rider nor do I have 20+ years of experience so I probably never tell you all the tire can do!
What I believe about the tire (best guess) It is a 705, from the same plant and of the same construction. They may have widened the groves but have not had a chance to do a side by side comparison.... minimally if so! The sidewall definitely has been changed in name as well as specifications....TIRE PRESSURE. Mfg recommended is 42psi while I believe the 705 is 36psi.
You may correct me if I am wrong but what I believe is the result is the following. Higher pressure = cooler running temps = higher obtainable speed rating.
I was not sure that I wanted to run such high pressures but figured with all the road miles what the heck...Do what the MFG Says dang-it
--> definitely a little stiffer all the way around. but may get a few more miles out of them at those pressures.
As for the negatives and positives in relation to the k-60 which was my other consideration.
The K-60 is more aggressive = good off road, but from the miles people are reporting running them they must be harder rubber and that is not generally as good in any type traction. so they would be better but not as much better as the tread gap may suggest. They should not grip as well on roads. (cornering & BRAKING) Wet road i am not even going to ponder my thoughts out loud on that. too many variables.
As for the 705 and M40, I do not believe I have read any confirmed tire block separation issues on the radial. If there is I would ask what tire pressures and speeds were being run. were they aired down for off road work and run down the highway without full pressure? The reason I ask is I believe that is what the leading cause of tire break down is............ all this is to my low level experience understanding.... I am only 5 years and 3 bikes into the game!
Oh yea, best part - 165 for the set from chaparral ... found a promo code.... 148 delivered to a shop I found along the trip. A nice fairly new start-up MotoStop in Daytona Beach. Amazing how well a little planning worked out on that one!! ::022::
Ok I am correcting myself here. I did a 350 mile loop to see a buddy yesterday. So my Full Bores have almost 2200 miles on them. I would say that the rear is half done. So I am thinking its more of a 4500 mile rear. Unfortunately most all of its miles have been down to strait of roads and the center is getting more of a focus of the activity than I aspire for. So with a better mix of roads that would maybe bump up a little. Sure wish I would of bought two rears at that price LOL.
As a continuation of tires in general. My previous steed (tiger 955i) I did throw a set of Big Blocks on. I had heavy cracking around all knobs and they were wearing FAST. I swapped them before 1000 miles. I liked the look and the off pavement confidence I had with them. But the heavy cracking and wear was not acceptable. I did get one of the first sets delivered and they may have done something to fix the cracking. I never lost a tread block but did not keep running them to find if I would. On a different previous steed (KLR) I had a different Kenda that performed great.
One last comment on the Full Bore M-40, Both front and back took 1.25 oz to get balanced. That is on the top end of acceptable by most manufacturers I think. If a guy ran them unbalanced I would think he might have a bouncy ride.
On last update/correction to myself. I was riding with a buddy who had the shinkos on a vstrom 650. I believe they are the same size tires though - not sure. but the Full bore does seem to have larger gaps/grooves. Its apparent along the up and down groves, the ones directionally inline with tire roatation/ otherwise the non-diagonal gaps! (yes I sure had trouble describing that one!! LOL) In relation to tire wear I would say rather similar. I had 2700-2800 on mine and his was just over 3000. The wear pattern was slightly different because of types of riding the tires had seen. However my guess is that they will be similar from the small info I have.
Hope that helps
