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(01-06-2018, 03:30 AM)SportsterDoc_imp Wrote: My 2014 standard is tubeless 140/70-18 on the rear, from the factory with Dunlop Sportmax radials (discontinued?)
Looks like the rear will need replacing by ~6,000 miles, probably by March, so I am checking what is available.
Since the front will probably outlast the rear by 3:1, I would expect a radial on the rear is necessary to avoid mixing bias and radials...although I no longer corner aggressively, so maybe that is not as important...but I do like to accelerate!
I avoid riding in the rain and am more interested in longevity. I traded the V7II just before it was due for a rear tire (~7,000 miles in 7 months). I think it had Pirelli Sport Demons and the rear lasted about the same as the Metzler on my Triumph. A Metzler 880 was the prime contender for the MotoGuzzi, but the only 140/70-18 I find is listed as a front tire.
The local Honda dealer provides "free" install. Don't know it if price is simply full retail or retail plus. Most tires I am looking at are in the $160 range.
Pirelli Sport Demon (bias)
Bridestone BT45 (bias)
Metzler ME880 (radial-rated front)
Metzler Roadtec Z8 (radial-dual compound)
Bridgestone BT54 (radial)
Shinko SR741 (radial)
Michelin Pilot Street (radial)
Opinions for my type of riding?
I think that the longevity might be the problem with the Metzeler Z8s, but I would love to hear firsthand comments from anyone who has had them on their CB1100...handling in real world conditions and longevity are the key things for me.
I'd also like to hear from folks with the Pirellis Angel GTs for the same information...plus I'd love to hear from Pterodactyl again.
I have .... heck I don't even know.. whatever is stock on the 2013s in the US. I miss my PR3s a lot. I have 4k on these tires so I figure I have until about June before I'll need to replace them. Sure would be great to have the same confidence in my choice as I had with the Michilens.
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(01-06-2018, 08:25 AM)EmptySea_imp Wrote: (01-06-2018, 03:30 AM)SportsterDoc_imp Wrote: My 2014 standard is tubeless 140/70-18 on the rear, from the factory with Dunlop Sportmax radials (discontinued?)
Looks like the rear will need replacing by ~6,000 miles, probably by March, so I am checking what is available.
Since the front will probably outlast the rear by 3:1, I would expect a radial on the rear is necessary to avoid mixing bias and radials...although I no longer corner aggressively, so maybe that is not as important...but I do like to accelerate!
I avoid riding in the rain and am more interested in longevity. I traded the V7II just before it was due for a rear tire (~7,000 miles in 7 months). I think it had Pirelli Sport Demons and the rear lasted about the same as the Metzler on my Triumph. A Metzler 880 was the prime contender for the MotoGuzzi, but the only 140/70-18 I find is listed as a front tire.
The local Honda dealer provides "free" install. Don't know it if price is simply full retail or retail plus. Most tires I am looking at are in the $160 range.
Pirelli Sport Demon (bias)
Bridestone BT45 (bias)
Metzler ME880 (radial-rated front)
Metzler Roadtec Z8 (radial-dual compound)
Bridgestone BT54 (radial)
Shinko SR741 (radial)
Michelin Pilot Street (radial)
Opinions for my type of riding?
I think that the longevity might be the problem with the Metzeler Z8s, but I would love to hear firsthand comments from anyone who has had them on their CB1100...handling in real world conditions and longevity are the key things for me.
I'd also like to hear from folks with the Pirellis Angel GTs for the same information...plus I'd love to hear from Pterodactyl again.
I have .... heck I don't even know.. whatever is stock on the 2013s in the US. I miss my PR3s a lot. I have 4k on these tires so I figure I have until about June before I'll need to replace them. Sure would be great to have the same confidence in my choice as I had with the Michilens.
Appreciate the response. They are a dual compound, supposedly harder in the center and softer on the edges. What prompts the longevity concern?
If Metzler ME880s were available in what they designate as a rear tire, I think that would be my first choice.
I am not extremely particular, but now that I am on a Social Security income, want to make an economical decision, which might be the Shinko SR741, if I were mounting it myself. I changed all my tires until my first alloy M/C wheel, circa 2002.
BTW, I generally take it easy in first, then let 2nd or 3rd gear do the work once or twice during a ride. Keeps the front tire on the ground and probably saves some wear.
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I was just repeating what I read in two or three other posts regarding tires. That's why I am hoping that someone with a CB1100 has installed and ridden on these tires and can provide a little more insight.
Also, "longevity" is relative, I guess. I put about 10,000 miles a year on my CB1100. I'd have to check, but I think I got 15,000 on my PR3s versus about 7500 on the original tires of my first 2013. I'd like to get at least 10k, but more like 15k out of whatever tires I buy. That kind of longevity may not be as important to others.
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(01-06-2018, 09:54 AM)EmptySea_imp Wrote: I was just repeating what I read in two or three other posts regarding tires. That's why I am hoping that someone with a CB1100 has installed and ridden on these tires and can provide a little more insight.
Also, "longevity" is relative, I guess. I put about 10,000 miles a year on my CB1100. I'd have to check, but I think I got 15,000 on my PR3s versus about 7500 on the original tires of my first 2013. I'd like to get at least 10k, but more like 15k out of whatever tires I buy. That kind of longevity may not be as important to others.
Got it!
For me, the worst wear was 3,000 miles on Dunlop K51s (very soft) originally on my 2002 Sportster 1200 Sport (stock was 79 ft lbs at 4,000 RPM-stage one was probably about 85 ft lbs). I don't remember re my 1976 CB750F, but with a Honda 350, Honda 360 etc., I got about 10K on the rear.
With the HP of the CB1100, would be happy with 8K, but only expect 6-7K. The Moto Guzzi might have gone 8K, possibly 9K miles, but it was only 48 HP at 6,500 and 40 ft lbs at 3,000.
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My '78 CB750F came with a tubeless Dunlop K187 Mk II on the rear and a tubeless Dunlop Gold Seal F11 on the front. I don't remember what kind of mileage I got out of them, but in those days, if you wanted good performance and longevity, you'd install a Continental K112 on the rear and a Continental RB2 on the front. That's what the R100RT's came with and lots of touring riders soon adopted them. They too were tubeless bias-ply tires and worked fine on the '78 Comstar rims (though your '76 had spokes and required tubes).
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Wear on the Z8 seems to be phenomenal.
I have them on my '17 Z900R and I don't spare the throttle or rear tire. I ride that bike for one reason only, to accelerate hard and occasionally lift the front wheel.
The rear tire hardly looks broken in and I'm pretty sure there are a couple thousand miles on it. And no traction control on that bike. Still has a very rounded profile.
I just put them on my 650's and found I could lower the pressure to 26F, 28R.
Seems crazy low but for twisty roads it's perfect.
I checked the hot pressure after getting back from a ride, front was only 30, rear was 31.5. 10 percent rise, just about perfect. And far more grip and feel than stock pressures for max weight.
Truth is I have the same issue that Pedrosa has, I can't get any heat into the tire because I'm so light. Carcass is really stiff for my weight. Lower pressure did the trick. As long as the pressure rise is about 10 percent, it's fine.
Along the same lines, I dropped the front in my ZX-10R (uses Metzeler M7RR tires, softer carcass, sportier compound) and it also rose to 30 psi from 28. But with 32 in the rear, I saw a rise to 36.5 psi. That's too much flex and heat in the tire. 34 psi rear, should be about right.
Freeways, I'd go quite a bit higher but still below max.
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So, what you mean by “the wear seems phenomenal” is “I haven’t the foggiest notion about the wear because I only have 2000 miles on them and not on a CB and not in real world riding situations”. Helpful.
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EmptySea, I know nothing about Angel GTs (other than a long ride early in 2016 to pick one up) or Pterodactyl's posting intentions, but I do know he considers them better than the PR3. I'm not sure they last as long. Sometime this year, I suspect I'll figure out what comes next.
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Thanks, Cormanus. I was among several beneficiaries of Pterodactyl's experiences with the PR3s and I am concerned that I will wind up having to take a leap of faith on my next set of tires. Perhaps I should look at it as an opportunity to provide advise to others here who will be looking for a tread change.
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(01-06-2018, 10:57 AM)LongRanger_imp Wrote: My '78 CB750F came with a tubeless Dunlop K187 Mk II on the rear and a tubeless Dunlop Gold Seal F11 on the front. I don't remember what kind of mileage I got out of them, but in those days, if you wanted good performance and longevity, you'd install a Continental K112 on the rear and a Continental RB2 on the front. That's what the R100RT's came with and lots of touring riders soon adopted them. They too were tubeless bias-ply tires and worked fine on the '78 Comstar rims (though your '76 had spokes and required tubes).
https://www.continental-tires.com/motorc...c/rb2-k112
I only find the K112 in 4" wide for 18" rim. The stock 140/70-18 are 5.5" wide.
I only find the RB2 in 16" & 19", not 18". Also, my experience with a front ribbed tire is not comfortable on rain grooves parallel to travel.
Regarding Michelin Pilot Road 3 in other posts, I am not finding them in 140/70-18
http://motorcycle.michelin.co.jp/US/en/t...ad-3.html#
I am not finding the Pilot Street Radial in 18" for the rear.
For now, the likely contenders for radial 140/70-18 are
Bridgestone BT 54
https://www.bikebandit.com/tires-tubes/m...ire/p/3360
Metzler Z8
http://www.metzeler.com/site/com/product...eract.html
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