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rupintart Polygonbikes-us's article
Apr 17, 2014 at 20:27
15 hours
Polygon Bikes Now Available In North America
Any US distributors or will you only be selling direct? What if a shop wants to carry a frameset and/or the brand?
rupintart mikelevy's article
Apr 17, 2014 at 14:26
21 hours
ENVE, Ibis, Specialized - Sea Otter 2014
lol...I wish I made money. Like I said, I'm a Materials Engineering student at Clemson. This stuff is right up my alley and was data for my own personal knowledge. It lets me sift through the marketing nonsense whenever customers ask my personal opinion. But if you have solid data presented to you and you still think the lesser product is better well, there's no helping you. We're not talking about value or bang for the buck, we were discussing outright performance since mister axxe said "there's no measurable benefit" or something along those lines when yes, yes there is and the Enve's are in fact better performing.
rupintart mikelevy's article
Apr 15, 2014 at 21:20
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
It's great to see you had something to respond back about the hard numbers disproving your fanboy remarks of "no performance benefit." A performance benefit that's over 10% stronger simply from the spoke bed design... Ten percent....that's pretty significant...that's 70 additional pounds. When road rims can take the same loads before failure as mountain rims, those aren't very great rims...imagine that the roadie rolling down smooth pavement has rims stronger than your mountain bike. That's pretty embarrassing. I see it shut you up and proved you wrong, so my point was made.
rupintart mikelevy's article
Apr 15, 2014 at 15:11
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
Technically speaking, the Enve rims are better than the Derby's. The ROAD rims see 710 lbs of force before the spoke pulls through. That's their weight weenie wheel. The SES and DH wheels have seen 800 lbs and still not even cracked....let alone failed/spoke pulled through. Your Derby wheels have only seen 719 lbs on their 29 and 775 lbs on their 650b before failing and the spoke pulling through. So if you want to break it down to it black and white of being more durable which you clearly stated, yes...the Enve is more durable going by posted numbers. So...what was that again? Oh...and for being "more qualified than me in material properties" your grammar and communication skills say otherwise. And unless you have higher than a Bachelors degree in Materials Science with a concentration in polymers and carbon fiber, I highly doubt it. So I will "flail" on.
rupintart mikelevy's article
Apr 15, 2014 at 14:47
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
You keep going back to Enve rims? Since when did I say Enve vs Derby? YOU said Enve vs Derby. I said 95% of chinese open mold products and even admitted the fact that some chinese made companies (Reynolds for example) are fine...you really do read what you want and nots what's actually written. I also never said anything about the price.... Based on me looking at your posts in the forums between replying here....you don't have any first hand experience with carbon wheels at all.... Lastly, it's pretty laughable that you say it's pretty hard to test composite products in a lab...you test them the same way you test anything else. Tensile, impact, and fatigue. Which again proves you have no idea wtf you're talking about or even comprehend what I'm typing lol. Again, it goes back to not reading....
rupintart mikelevy's article
Apr 15, 2014 at 14:39
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
And please let me know wtf "FUD" is...Google turns up "Fear, Uncertainty, and Doubt." Which in most cases exhibits the content of your posts since it appears you have no experience with any of the products seeing as you bought machine built Nukeproof wheels. Not bad wheels, but it shows you don't even have any experience first hand with carbon wheels; mountain or otherwise. Strolls through parking lots and reading opinions online don't count as experience. If it's of any consolation to anybody else reading this non-sense, my day job is a service manager at a bike shop. We get a bonus if a monthly set goal is made. I would rather miss out on making that monthly goal (putting money in my pocket) than selling cheap carbon hoops. One, I have to deal with that customer when they come back unhappy and two, I'll be the guy working on the crappy product pissed off that I sold. I want neither of those. I'll sell things that I know work and are reliable. Elitest not even in the slightest as I sell our shop brand stuff if I know it works just fine at a lower pricepoint. But I won't compromise a relationship with a customer over a potentially shoddy product, even if the guy next door is willing to make the sale when I have intimate first hand experience that dives much deeper than just putting them on a bike or reading reviews. I have grades, transcripts, first hand manufacturing experience, and my own personal lab data....which is more than what most people have.
rupintart mikelevy's article
Apr 15, 2014 at 14:25
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
That's laughable at best. Protecting my source of income? I'm a student and don't work for any of the companies I mentioned nor do I own any of their products. I did that testing as part of a senior design project; THAT'S why I have that data. Bought and paid for out of my own pocket. I interned at different companies for building my resume to possibly get a job after graduation. "Actual users" are not a legitimate verifiable sample. Do you know every one of those users? Do you know the conditions or frequency they ride? Not every person is taking care of their wheels; some people do and other people don't even ride their bikes enough to know whether the rims are actually even better or have owned anything else to compare them to. It's pretty hard to deny independent lab testing where each rim is stressed under the same conditions, were random samples (read: not given to me by the company ensuring a perfect product) and have multiple people who aren't even cyclists testing the products (my lab partners are scientists and engineers also needing to graduate and are not in any form cyclists.) I'd say that's far more valuable than some group of pinkbike users who may or may not even ride their bikes.
rupintart mikelevy's article
Apr 15, 2014 at 14:13
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
For being ten years my elder, you don't really seem to listen or read much.
rupintart mikelevy's article
Apr 15, 2014 at 14:06
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
Actually, I've done internships at three different facilities for three different companies. So yes, I know EXACTLY what is actually done.
rupintart mikelevy's article
Apr 15, 2014 at 13:59
3 days
ENVE, Ibis, Specialized - Sea Otter 2014
lol...not baseless, I'm a materials engineering major with a concentration in carbon fiber at Clemson University. I've done numerous tests on road rims with the fatigue and failure data to prove it. I can only assume the same can be said for most mountain wheels, but I would wager my assumption would be right. I never said anything about Derby rims either; you inferred I was speaking about them. I have no experience with them, nor do I really care to. But I'll still stand behind the fact that 95% of the chinese no-name rims out there that are molded from an open mold then drilled are crap. Lots of US based companies utilize overseas manufacturing, but many of those same larger names have quite the research, if not at the very least great quality control behind it before putting their names on it. And at the very least, they'll put a pretty hefty warranty/crash replacement behind their products, which is partly factored into the cost of their wheels making them more expensive. Reynolds wheels are chinese manufactured, I'll completely trust them. So no, I'm not bashing overseas carbon production. On any day of the week, I'll put a set of Zipp, Reynolds, Bontrager, or even Boyd hoops against any chinese open molded rim....Derby or otherwise. I've compiled my own data and have personally seen Zipp road hoops take much higher torsional and tensile loads (read:that includes spoke bed loading) than carbon road wheels almost double the weight and/or materials used (mainly wall thickness.) I'm not saying Zipps are the best, I don't even have carbon rims on my roadbike, but what I am saying is most of the chinese crap you find on ebay, alibaba, craigslist, and other places like icarbonsports are garbage. You might get a hoop that's flawless and work great. But more often than not you won't. I personally don't like risking my money and safety like that...then again, what do I know....
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