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Continental 4 seasons 700 X 32

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Continental 4 seasons 700 X 32

Old 08-18-17, 10:38 PM
  #1  
reburns
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Continental 4 seasons 700 X 32

Curious if anyone has tried these in 32 mm width, and what the actual width is. Also, performance vs the GP 4000 S2 28 mm which actually runs 32 mm.
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Old 08-19-17, 08:41 AM
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I seem to recall the 4 Seasons running a bit truer to size than the 4000 II. Maybe the 4 Season 32mm is not too much bigger than a 4000 II 28mm? BIcyclerollingresistance.com shows a big difference in rolling resistance between the two. So unless really needs the puncture resistance I don't think it's worth the switch from the 4000's. I found a link with a review but unfortunately no actual width measurements.

https://www.mantel.com/blog/en/conti...-32-mm-review/

My new bike came with 4 Seasons 28's. I took them off while they were new and replaced them with my trusty 4000 II's. I didn't take a measurement but they are narrower and not as tall as my 4000 II 28's.

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Old 08-19-17, 09:07 AM
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I just took off Four Seasons in 28 and they measured 28 on Dyads (19 internal) @ 90 psi.

Panaracer Gravel Kings in 32 measure 32 on the same rims@80 psi
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Old 08-19-17, 12:00 PM
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On the tandem we have only ridden the 25mm and 28mm tires in both the 4Season and GP4000S II models. Probably due to its larger volume, the GP4000S II 28mm has given better wear (tread lasts longer) and better ride quality (due to lower air pressure required by some 14-15psi @ 93psi front/rear on medium wide rims - 19mm internal and team weight of ~265lbs loaded).

Compared to the GP 4000S II, 4Season has slightly thicker non-Chili tread rubber and a extra layer of flat protection wrapping up the sidewalls. I might still opt for the 4Season if destined to ride really bad roads with lots of glass and garbage, but otherwise the GP4000S II is our go-to all-round tire.
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Old 08-19-17, 03:40 PM
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Panaracer Gravel Kings

Just back from our first ride on Panaracer Gravel Kings 32c. Noticeably more supple/comfortable than the 28c Grand Prix 4 Seasons they replaced. A bit more road noise from them, but they seem to roll at least as well. The extra volume was appreciated when we were on chip seal, and the 500 yds is gravel we negotiated.

Our new go to tire I think.

Running them at 80 PSI on Velocity Dyads (40 3x). Team weight is 285.
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Old 08-20-17, 02:21 AM
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Funny that someone mentioned the 32mm GravelKings. I just order a pair from an eBay seller for $71.50 a pair. I intend to use them on my half bike. I have a gravel/paved group ride coming up next week. The 32mm GravelKings are in high demand. They get very good reviews and the tires are made in Japan. They run true to their marked size. I will run lower pressures and turn my aero half bike into a temporary gravel bike, LOL.

I don't think I will use them on my tandem. I value low rolling resistance over ride quality and it's hard to beat the Conti 4K. They will remain as a gravel only tire for me but I'm somewhat curious on well they perform on paved roads compared to the Conti 4K.
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Old 08-20-17, 05:43 AM
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After reading the ongoing posts in this thread, I was thinking about trying either the GP 4 Seasons or the GP 4000 S II. We run Gatorskins now in 28mm, 360lb team on Cannondale RT2. But Saturday, we were out on a 45 mile ride, front tire went down, was a pice of glass about the size of a pinhead had worked through right in the middle of the tread.
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Old 08-20-17, 05:26 PM
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It depends on your goal. Rolling resistance and puncture resistance are competing objectives. The best one in rolling resistance is the 4000, followed by the 4 Seasons, with the Gatorskins being the worst. For puncture resistance it's exactly the opposite. I ride on fairly clean roads (county roads). I live in the country and hence I don't ride in the city. I use the 4000. I also use lightweight 80g tubes for further reduction in rolling resistance. On my half bike I run 4000's and 50g Conti Supersonic tubes. Latex tubes have the lowest rolling resistance but they are unsafe to use on clinchers. Bicyclerollingresistance.com has all the data on rolling and puncture resistance on tubes and tires.
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Old 08-20-17, 06:38 PM
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Originally Posted by pdlpsher View Post
Latex tubes have the lowest rolling resistance but they are unsafe to use on clinchers. .
Why are latex tubes unsafe to use on clinchers? I've never heard that before.
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Old 08-21-17, 12:45 AM
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Originally Posted by bwebel View Post
Why are latex tubes unsafe to use on clinchers? I've never heard that before.
The answer can be found under this link. Keep in mind that Enve is saying that latex is unsafe in all clinchers, not just carbon clinchers. The danger has nothing to do with heat like what most people think.

Ever wonder why Conti uses latex tubes in all of their racing tubular tires but yet you cannot buy a standalone latex tube from Conti?

https://enve.zendesk.com/hc/en-us/ar...bile_site=true

Last edited by pdlpsher; 08-21-17 at 12:50 AM.
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Old 08-21-17, 03:42 AM
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Originally Posted by pdlpsher View Post
The answer can be found under this link. Keep in mind that Enve is saying that latex is unsafe in all clinchers, not just carbon clinchers. The danger has nothing to do with heat like what most people think.

Ever wonder why Conti uses latex tubes in all of their racing tubular tires but yet you cannot buy a standalone latex tube from Conti?

https://enve.zendesk.com/hc/en-us/ar...bile_site=true
Thanks for the link...I have seemed to have more problems with latex tubes over the years. But then a lot of the racing equipment trades off robustness for speed, so it's seemed to be part of that tradeoff to me.

I didn't think Conti uses latex tubes at all? The Comp and GP 4000 tubulars that I have are both butyl. But I've never seen their reasoning.
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Old 08-21-17, 08:33 AM
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Originally Posted by pdlpsher View Post
The answer can be found under this link. Keep in mind that Enve is saying that latex is unsafe in all clinchers, not just carbon clinchers. The danger has nothing to do with heat like what most people think.

Ever wonder why Conti uses latex tubes in all of their racing tubular tires but yet you cannot buy a standalone latex tube from Conti?

https://enve.zendesk.com/hc/en-us/ar...bile_site=true
Fear this! sells. I use latex on tires 25mm and under, never had a failure. BS. Pumping latex outside the tire, yes if you overpump you'll see a section ballooning. If you blow up a balloon, sure enough it gets bigger, but that doesn't mean balloons are inherently unsafe. I'd use latex on my tandem Contis, but don't know of a source for larger tubes. I use Michelin latex.

That said, maybe there's some problem with the interior finish quality of Enve rims.
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Old 08-21-17, 08:53 AM
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We have used this tire on a Co Motion Supremo/Dyad on the rear only. It's a huge tire, much bigger than any 28.
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Old 08-21-17, 11:57 AM
  #14  
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Originally Posted by mkane77g View Post
We have used this tire on a Co Motion Supremo/Dyad on the rear only. It's a huge tire, much bigger than any 28.
If you still have it mounted and have calipers, I'd love to see a width measurement. Any comments on ride quality?
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Old 08-21-17, 03:11 PM
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Not mounted any longer and there's only a disc in the rear. I would imagine it measures 32-34 mm. The 28 we now have mounted measures 29.75 with 105psi
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Old 08-22-17, 08:40 AM
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Originally Posted by pdlpsher View Post
Funny that someone mentioned the 32mm GravelKings. I just order a pair from an eBay seller for $71.50 a pair. I intend to use them on my half bike. I have a gravel/paved group ride coming up next week. The 32mm GravelKings are in high demand....

I don't think I will use them on my tandem. I value low rolling resistance over ride quality and it's hard to beat the Conti 4K. They will remain as a gravel only tire for me but I'm somewhat curious on well they perform on paved roads compared to the Conti 4K.
For us the GKs seem to roll as well as the 4 Seasons the replaced. The file tread on them is very similar to that used on Vittoria Corsas. My sense is the extra volume is more than offsetting any increase in RR caused by the tread.

They are about 10g heavier than the Four Seasons and do seem to spin up a bit more slowly.

YMMV;-)
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Old 08-22-17, 11:02 AM
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Originally Posted by Carbonfiberboy View Post
Fear this! sells. I use latex on tires 25mm and under, never had a failure. BS. Pumping latex outside the tire, yes if you overpump you'll see a section ballooning. If you blow up a balloon, sure enough it gets bigger, but that doesn't mean balloons are inherently unsafe. I'd use latex on my tandem Contis, but don't know of a source for larger tubes. I use Michelin latex.

That said, maybe there's some problem with the interior finish quality of Enve rims.
My own personal experience with latex and clinchers backs up with Enve's findings. What from I know, because latex is so flexible and stretchy, it has the tendency to expand into the tiniest area, and fail at those stress points, often without warning and with catastrophic consequences. I've suffered blow-outs on high-speed descends. I never hit anything nor did anything actually punctured the tube. The tube itself failed without warning. With that said some people have had success with latex when using Velox cotton rim tapes and use very low pressures, below 90psi. But they have to replace their latex tubes very often. After awhile latex stretches unevenly and they will actually end up with having a diameter much bigger than 700c even without any inflation.

On my quest to reduce rolling resistance on my half bike I've been using Conti Supersonic tubes. They are safe and behave just like any other butyl tubes. The downsides: the cost and they are not recommended for tires bigger than 25mm due to their thin construction. On my full bike the 80g. lightweight butyl tubes work well on bigger tires.
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Old 08-22-17, 11:08 AM
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I did a test ride on my GravelKing 32mm yesterday on my half bike. When mounted on 17mm internal width rims, they measure 30.5mm wide and 27.5mm tall at 70psi. I suspect they might stretch some with time. I don't have a Conti 4K 28mm on hand to do a comparison but I suspect they are similar in width. The Conti 28mm I had measured 32mm wide but that was on a wide rim with 21mm internal width. The weight is 290g, which is similar to the Conti 28's. Overall I really like the GravelKing 32mm tire. They offer a substantially improved ride at the lower pressure and without giving up much in rolling resistance.



Last edited by pdlpsher; 08-22-17 at 11:19 AM.
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Old 08-23-17, 08:32 AM
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Fine looking tire
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Old 08-23-17, 04:19 PM
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I have Conti 4KS2 28 mm tires mounted on two tandems, one with 18 mm internal width rims, the other with 13 mm. At 80-90 psi, the tires on the wider rims both measure over 32 mm wide. The lower pressure front is actually 32.6. That's after about 1000 miles use. The tires on the narrow rims are slightly more than 30 mm wide, with 100-110 psi.

The "28 mm" Conti 4KS2 made be the world's lightest and fastest 32 mm 700C tire.
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Old 10-11-17, 03:29 PM
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Partially answering my own question: regarding actual width, I mounted a 32 mm 4 seasons on a Spinergy rim (18 mm internal width) at 90 psi and after sitting overnight the width is ~32.6 mm, not much different than a 28 mm 4KS2 after a break in period.

I'm tired of having to replace 4KS2 tires on my rear wheel due to sidewall cuts, way before the tread surface is worn. Have not had that problem on the front so for now I will try keeping the lighter and more supple 4KS2 on the front and running the 32mm 4 seasons on the rear.
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