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  1. #1
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    Wide Tires with Slick Tread vs. Hybrid Tread

    In your experience would there be much difference in rolling resistance between this mild hybrid tread that I have (Kenda Kourier 700x40, at 60psi):

    http://ecx.images-amazon.com/images/I/31DGsSOYGvL.jpg


    And this slick-with-rain-channels tread (Kenda Kwest 700x38, at 60psi):

    http://kendatire.com/media/567228/k193.jpg


    Just the tread pattern issue in isolation. The tires are otherwise similar in width and weight/puncture protection. I'm not talking here about switching from mountain bike tires to skinny high-pressure racing slicks.

  2. #2
    coprolite fietsbob's Avatar
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    buy them both and set up a controlled test. .. science ..


    Common Sense:
    Isolated tread blocks move* on a hard surface, the surface moves on a soft one.

    Energy dissipated.. heat, one way it goes away.
    Last edited by fietsbob; 03-13-13 at 11:55 PM.

  3. #3
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    Just bought a new bike with the Kourier tires you linked in the same size. I HATE them. I had these on my old bike in 700 x 38.
    http://bontrager.com/model/07796
    The Kendas look ok but, they don't seem to roll as easily. I started at 60 psi and am going up from there, with a rougher ride, a I go up. What I notice most of all is when you stop pedaling, you began to slow at a much more rapid rate. YMMV.
    The H2's have a folding bead compared to a wire bead on the Kendas. Can some of the more experienced comment on whether the wire bead is a rougher ride?
    I will be getting some more H2's.

  4. #4
    Senior Member jrickards's Avatar
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    Quote Originally Posted by PJMC View Post
    In your experience would there be much difference in rolling resistance between this mild hybrid tread that I have (Kenda Kourier 700x40, at 60psi):

    http://ecx.images-amazon.com/images/I/31DGsSOYGvL.jpg


    And this slick-with-rain-channels tread (Kenda Kwest 700x38, at 60psi):

    http://kendatire.com/media/567228/k193.jpg


    Just the tread pattern issue in isolation. The tires are otherwise similar in width and weight/puncture protection. I'm not talking here about switching from mountain bike tires to skinny high-pressure racing slicks.
    I have a set of tires (brand and model I can't remember) like the Kwest (but not these ones specifically) and I like it a lot.

  5. #5
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    Bikes can't hydroplane in the rain unless they reach speeds in excess of 90mph according to the pros in the mechanics subforum here. I ride in the rain and I have 700x25c slicks with no tread and I have never slipped and I'm 350+ pounds.

    Tread on bike tires is more for show than anything else on dry and wet surfaces. Mud, snow, ice, gravel are another story.
    "When dealing with stuff like this consider that this is a bicycle, not a spaceship." -- FBinNY

  6. #6
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    My route takes me on some pretty gravelly shoulders, so I'd stick with the tread, although my tires are in between those two (OEM on a 2012 Trek Allant).

  7. #7
    tougher than a boiled owl droy45's Avatar
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    The slicker the tire the faster it will be for pavement. The road surface itself is very rough and porous and will channel alot more water than any bicycle tire. Only wide tires like on cars at speed can hydroplane. Snow, ice, mud is another thing.
    For God so loved the world that he gave his one and only Son, that whoever believes in him shall not perish but have eternal life. John 3:16

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    If you have two identical tires, then the slick tire will be faster. Rolling resistance (how much energy is used in deforming the tire's sidewalls) will affect speed. Thicker sidewalls will generally yield higher rolling resistance. It's very difficult to accurately measure rolling resistance. Unless your tires are severely under-inflated, I doubt that you will gain more than 1.5 mph speed with a low rolling resistance tireif you usually cruise at 18 mph.

  9. #9
    Senior Member Bill Kapaun's Avatar
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    Quote Originally Posted by furballi View Post
    ...... I doubt that you will gain more than 1.5 mph speed with a low rolling resistance tireif you usually cruise at 18 mph.
    Which would be an OUTSTANDING increase if true.

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    I've had excellent experience with the Kwest 26x1.5". I've gotten >10,000 miles out of a couple Kwests, and they're only ~15 bucks. I've ridden both the low (65) and high (100) pressure versions, and prefer the cheaper, lighter 65psi tire, which has a flat-resistant layer that the 100psi tire lacks. The 100psi tire doesn't roll any faster, it's just heavier. The 65psi tire weighs ~520g, the 100psi weighs 605g. Yes, I weighed them.

    Good place for parts, fast and cheap, website kinda sux:

    http://www.ebikestop.com/kenda_kwest...ire-TR5171.php

    http://www.kendausa.com/en/home/bicy...ter/kwest.aspx

    The Kouriers don't look so hot to me, I'd leave them alone. Tread makes little difference on pavement.

    Ritchey Tom Slicks in 26x1.4 are a bit faster than Kwests, but they cost twice as much (just for steel, nm the expensive folding version) and don't last half as long as the Kwests.

    Nashbar and Performance sell rebranded Cheng Shin tires, usually a good value, but no better than the Kwest.

    Kwest tires are sold on Amazon in colors, also under the name Action Messenger, if this interests you.

  11. #11
    7-speed doomsday prepper ThermionicScott's Avatar
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    If you're looking for better performance, I'd aim higher than the Kenda Kwests.
    Quote Originally Posted by chandltp View Post
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  12. #12
    PatronSaintOfDiscBrakes dynaryder's Avatar
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    ^^^Agreed,but if the OP's on a budget,Kwests don't suck. They aren't Marathon Supremes,but they're ok. I've had them come stock on several bikes and didn't bother to swap them until they wore out.

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  13. #13
    aka Tom Reingold noglider's Avatar
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    Panaracer Paselas cost $20 each or less. Nothing else in that price class rides as well.

    "It's an excellent value!"
    Please email me rather than sending me a private message. My address is noglider@pobox.com

    Tom Reingold
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    Thanks for the comments. I do know the concept of slick tread being preferable on paved road, which is why I'm considering switching from the OEM tires.

    My issue is whether the tread on the Kouriers is so mild already that it wouldn't make a particularly noticeable difference going to the Kwests.

    Quote Originally Posted by downwinded View Post
    Just bought a new bike with the Kourier tires you linked in the same size. I HATE them. I had these on my old bike in 700 x 38. http://bontrager.com/model/07796 The Kendas look ok but, they don't seem to roll as easily.
    I wonder if your Bontragers had flat protection -- that model seems to come both with and without it. That would make a world of difference. Those are actually a lot more treaded than the Kwests.

    Quote Originally Posted by noglider View Post
    Panaracer Paselas cost $20 each or less. Nothing else in that price class rides as well.
    Do you mean the slicker of the two treads?
    http://panaracer.com/urban.php#pasela

    They don't ahve flat protection though which I want. The Ribmos would be on my list but they only go up to 700x35. The only other wide slicks in the lower-end price range I've seen are Michelin City, with reflective sidewall which I like very much. But I'm reading they're ridiculously hard to get on the rim.

    Nobody seems to have a totally slick wide tire. There were some Michelin's I've seen but they're discontinued.

  15. #15
    ride for a change modernjess's Avatar
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    Slicks

  16. #16
    Senior Member catonec's Avatar
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    To be realistic about this, you're not going to experience a "holy crap!" epiphany between the two. assuming you're riding at < 20 mph avg you would probably be able to simulate the same "feel deviation" just by increasing or decreasing the tire pressure by 10 lbs.

    Yes I do ride semi slicks on my MTB but thats more for noise reduction on asphalt than anything else.
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  17. #17
    This bike is cat approved monsterpile's Avatar
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    IMO you won't have a significant difference between those 2 tires. As noglider recommended the Panaracer Paselas are pretty good and something like is worth stepping up to if you want to get something better.With that tire its the ride I noticed was nicer. I use whatever crappy tires I have laying around, but there is a difference between some tires and others and you don't have to spend alot to get something good especially if you shop around a bit. If you don't care too much ride what you have it will be just fine.

    Nashbar used to have a totally slick tires i know they had it in the 26" size and swore they had it is the 700 size for a while, but they don't have any in either size right now. Maybe they will come back. I don't need any I have a bunch of them already I bought on sale. LOL
    My SUV is a bicycle

  18. #18
    aka Tom Reingold noglider's Avatar
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    The tread on road tires is cosmetic, not functional. It neither hurts nor helps. It's difficult for customers to believe a slick tread is best, so slick tires don't sell. The fraction of cyclists who know enough about slick tires is too small to justify making slick tires, unfortunately. Fortunately, it's possible to make tires with tread so light that it doesn't hinder you.

    The tread on the Pasela looks like a hindrance, but it isn't. I can't explain it, but it's a lovely tire, especially for the price.

    The Pasela Tourguard has an aramid sheath under the tread and is said to offer good puncture protection. I haven't tried it. I ride the normal Pasela, because it costs less.

    I figure flats are a part of life, and I deal with them when they happen. I'm pretty good at changing and patching tubes at this point. It's not fun to fix one on the road, especially in bad weather, but life isn't perfect. I don't want to ride a heavy tire just for flat protection. That's more un-fun for me than fixing the occasional flat.
    Please email me rather than sending me a private message. My address is noglider@pobox.com

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