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#81
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Another Case of those safe CF bikes
On Thursday, June 29, 2017 at 6:57:05 PM UTC-7, John B. wrote:
If you give the average TdeF rider the choice between a super light bike or an un-bustable bike, which one will they select? If you give him the choice of a super light bike with a possible fatal result and a not quite as light bike that is much more likely to get him home, what do you suppose he would select? |
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#82
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Another Case of those safe CF bikes
On Friday, June 30, 2017 at 6:08:46 AM UTC-7, Duane wrote:
wrote: On Thursday, June 29, 2017 at 8:28:50 PM UTC+2, Duane wrote: On 29/06/2017 2:22 PM, jbeattie wrote: On Thursday, June 29, 2017 at 9:34:02 AM UTC-7, Doug Landau wrote: On Thursday, June 29, 2017 at 7:18:34 AM UTC-7, Joerg wrote: On 2017-06-28 11:31, Duane wrote: On 28/06/2017 12:49 PM, jbeattie wrote: On Wednesday, June 28, 2017 at 7:03:26 AM UTC-7, Duane wrote: On 27/06/2017 7:44 PM, jbeattie wrote: On Tuesday, June 27, 2017 at 3:55:02 PM UTC-7, AMuzi wrote: On 6/27/2017 5:07 PM, Frank Krygowski wrote: On 6/27/2017 12:23 PM, wrote: You can get the latest Michelin Power Endurance tires for only a little less than the Gatorskins. So far the Pro4 Endurance tires have impressed the hell out of me. https://www.merlincycles.com/micheli...YaAlsK8P8 HAQ What impresses me the most is that I've gotten only one flat and it was from a goat's head thorn. The traction is a LOT better on the road than Gatorskins are. Though the long term wear I can't tell yet. A serious question about traction: What sort of road riding lets you know one make of tire has better traction than another? I know how to evaluate traction only by exceeding its limit; that is by skidding when braking, or by sliding out when cornering. But I've hardly ever skidded when braking except when doing parking lot exercises to teach quick stopping to other cyclists. And one of my (only two ever) on-road falls was a slide out, but it was due to winter road salt. I doubt any tire would have maintained traction. Granted, I'm very conservative with cornering. I don't ever look like this: http://www.trentobike.org/Countries/...y/tiretest.jpg So do others regularly take their cornering to the limit, then note how the tires behave? Harder tread compounds feel odd in corners as compared to Michelins. Absolute traction /in extremis/ is a different matter; I don't know. I assume other factors outweigh tread material at that point because pretty much any two-wheeler can skid with normal braking force. Personally, I have two spots where I test tire traction in wet weather -- the chute into my garage with a tight turn (which is smooth cement) and a short, steep section on my way home -- going up seated and sanding. It's easy to gauge traction at that spot because your rear tire slips out, and moving fore-aft doesn't make a difference. Going down the chute, you can feel how much sliding you get with hard braking. Misjudging in both cases is fairly low consequence, although a guy in my building crashed and broke his him on the chute. Then they put in non-skid, which wore off about 15 years ago. I crashed there on a pair of early Michelin colored tires with a clay based pigment. Downside of sale table finds. I can't tell the difference in traction between two quality tires -- say a Pro4 and a Conti 4000, but some sale table tires are like riding on banana peels, even after break-in. How do you like the Conti 4000? I usually use Specialized Pro but my favorite LBS is dropping Specialized so I'll have to find a replacement tire. Specialized tires don't seem to be available online. Do they have good flat protection? Grip? ... Conti 4000 are wickedly expensive and prone to sidewall cuts, IMO.. Lou prefers them and can get a good deals in Europe. For me, they are always 20-50% more than Michelins. As for ride and grip, I think the Contis are a bit more plush feeling than Pro4s. I have a Conti front tire on my Roubaix; its 25mm nominal but looks and rides bigger. Oddly enough, the Conti 4Seasons are heavier and have more rolling resistance than the Pro4s and the 4000, but I really liked them on my Roubaix winter bike. They're just too expensive, so I'm using Pro4 Endurance rear tire right now -- which are good, but I don't think they are as grippy as the regular Pro4s or the 4Seasons, but that impression could be effected by the fact that it's easy to skid my rear wheel on the Roubaix because the disc is so powerful. Like I said, all the differences are subtle between the high end tires from Michelin or Continental. Thanks. I think the Conti 4000s is about the same price here as the Spec Pros that I use. I guess I'll find out shortly if I like them. I find Michelins a bit sluggish and hard to mount. Although I just watched a guy mounting a Conti in the pouring rain Sunday and he didn't seem to be enjoying it. It was a sidewall cut actually. He hit a piece of strip metal. When I had my last side wall failure on a Conti Gatorskin I called my wife to pick me up with her car. I could have put a chunk of cloth in but I didn't want to go through an hour of wrestling again. Now I switched to tires with sturdier side walls. Conti Gatorskins are absolutely awesome. Winter commuting, two or more flats per week, switch to gatorskins, no more flats. I ride Gatorskins, too, and they're relatively problem free. I've had problems with the uber-expensive Conti Grand Prix 4000S II version 10 back-slash zed, etc., etc. The super-tire. It's a very nice riding tire and many people find them to be reliable, but I had some problems and find Pro4s to be fine for me and much cheaper, particularly now that they are going out of production in favor of the latest and greatest "Power" tires from Michelin. What sort of problems did you have with the 4000s? You mean like flats or handling or bad wear or what? Those are probably what I'm switching too... As for pricing, I know a guy... For 5 years the 4000S(II) is tested as the best all round tire. Very good wet traction, durable, very few cuts, low rolling resistance and low weight. There are other high performance tires which score higher on one aspect but not overall. Side walls are not their strongest point, so if you ride over rocks the 4000S(II) is maybe not the best choice. Fortunately we have good roads here so the choice for the Conti4000S(II) is a no brainer for me and a lot of my friends. The Michelin Pro was the first high performance tire I used, but I stopped using the Michelins after they introduced the Pro2. Very prone for cuts and not so durable. Thanks. I don't ride over rocks very often but I do have to deal with a lot of potholes and bad roads. If I want a tire to guarantee no cuts in that case I'd have to buy truck tires. I'm looking for something to prevent puncture flats as well as the Spec Pros that I use now. I'll try the Contis next time. duane - go to the referenced page above and read the reviews. |
#83
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Another Case of those safe CF bikes
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