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#11
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New invention. Hole less rim
more here http://www.velocitywheels.com/zvino.htm It looks like the inserts hold a nipple in them, so you may be able to unscrew a broken spoke from the nipple and rescrew in a new one. Maybe without the bend at the nipple, you've got less chance of breaking that end of the spoke than at the hub. Supposedly the load is spread over a larger area of the rim by the way the spokes are attached, does that make any difference? Joe -- joemarshall - dumb blonde my pics http://gallery.unicyclist.com/album483 ------------------------------------------------------------------------ joemarshall's Profile: http://www.unicyclist.com/profile/1545 View this thread: http://www.unicyclist.com/thread/42672 |
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#12
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New invention. Hole less rim
-Originally posted by johnfoss-* the purpose of this design is to prevent air leaking through the spoke holes when using tubeless tires. The benefits for "regular" tires may not be as apparent.* This benefit is deceptive; the proper rim strip does just as well with the advantage of being much lighter than the corresponding metal. joemarshall wrote: *more here http://www.velocitywheels.com/zvino.htm It looks like the inserts hold a nipple in them, so you may be able to unscrew a broken spoke from the nipple and rescrew in a new one. * But how do you get the inserts out to change a nipple? * Maybe without the bend at the nipple, you've got less chance of breaking that end of the spoke than at the hub. * Actually the bend for a typical 700c wheel is very very slight anyway. And that's not where spokes break, they break at the 90 degree bend near the head, due to fretting, usually from an undertensioned wheel. * Supposedly the load is spread over a larger area of the rim by the way the spokes are attached, does that make any difference? * Normal good-quality rims have either thickened metal around the spoke hole, or make use of eyelets, which both accomplish the same thing. Ditto for the wide-flange nipples I use on the Coker wheels. -- U-Turn - Cool water for the flame Weep in the dojo... laugh on the battlefield. 'LiveWire Unicycles' (http://www.livewireunicycles.com) 'Strongest Coker Wheel in the World' (http://www.unicyclist.com/gallery/albup39) '29er Tire Study' (http://u-turn.unicyclist.com/29erTireStudy/) 'New York Unicycle Club' (http://www.newyorkunicycle.com) -- Dave Stockton ------------------------------------------------------------------------ U-Turn's Profile: http://www.unicyclist.com/profile/691 View this thread: http://www.unicyclist.com/thread/42672 |
#13
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New invention. Hole less rim
i want to try those Velo plugs. -- jagur - Random Unicyclist smoke me a kipper, i'll be back for breakfast. --------------------------------------------------- -forget_your_life- -------------------------------------- -------*muni militia *------- *one wheeled death squad* ------------------------------------------------------------------------ jagur's Profile: http://www.unicyclist.com/profile/502 View this thread: http://www.unicyclist.com/thread/42672 |
#14
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New invention. Hole less rim
An interesting concept for spoke attachment, though I've seen similar methods for attaching other stuff (that works well), but there's not nearly enough information for anything other than a cursory evaluation. I guess they won’t want to give to much info out (patent pending). I've always considered the traditional method of spoke to rim and spoke to hub attachment, though perfectly functional, a little antiquated. -- unicus - I need to change this 'Photos' (http://gallery.unicyclist.com/Photos-from-unicus) 'Videos' (http://gallery.unicyclist.com/unicus) ------------------------------------------------------------------------ unicus's Profile: http://www.unicyclist.com/profile/869 View this thread: http://www.unicyclist.com/thread/42672 |
#15
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New invention. Hole less rim
U-Turn wrote: *It is an interesting idea because of the ability to have different numbers of spokes. It won't make the rim lighter, because it has a continuous spoke-rim interface, rather than selectively placed ones. It also won't support higher tension, one of the primary aspects of wheel strength. The limiting factor in spoke tension, for the better rims, is not hole strength, but brace angle and the rim's torsional stiffness. These attributes are unaffected by the new idea. Additionally, it appears to make replacing a nipple/spoke impossible without rebuilding the entire wheel. This is a no-go item in my mind. It multiplies the number of parts required to build a wheel. The only real advantage I see is that it allows the nipple to pivot to follow the spoke line, but this is not much of an advantage for larger wheels, especially 3x. Oh, and it provides lots of advertising space! Overall -- two thumbs down. * I think it goes . . . First they ridicule. Then they violently oppose. Then they honor. -- ChangingLINKS.com - member Wishing you Happiness, Joy and Laughter, Drew Brown 'Changing LINKS' (http://www.ChangingLINKS.com) ------------------------------------------------------------------------ ChangingLINKS.com's Profile: http://www.unicyclist.com/profile/5468 View this thread: http://www.unicyclist.com/thread/42672 |
#16
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New invention. Hole less rim
ChangingLINKS.com wrote: *I think it goes . . . First they ridicule. Then they violently oppose. Then they honor. * New ideas are great. Some of them make a lot of money. A very, very few of them stand the test of time. Many ideas that do not last, make a lot of money anyway because people buy something that is "different". In this case, the inventor appears to be trying to solve a problem that either 1) does not exist, or 2) only exists for manufacturers. In this implementation, it appears to add several disadvantages to the user. It may be a stepping-stone to other implementations that revolutionize the bicycle wheel. Or, it may be yet another dead end. Or, it may spark yet another idea in the inventor's or someone else's mind. My post above was intended neither to ridicule, oppose, or honor. It was me trying to analyze the invention from a technical point of view based on scanty evidence. If you send me the money, I'll build you a wheel using one of those rims - if they are available as rims only! -- U-Turn - Cool water for the flame Weep in the dojo... laugh on the battlefield. 'LiveWire Unicycles' (http://www.livewireunicycles.com) 'Strongest Coker Wheel in the World' (http://www.unicyclist.com/gallery/albup39) '29er Tire Study' (http://u-turn.unicyclist.com/29erTireStudy/) 'New York Unicycle Club' (http://www.newyorkunicycle.com) -- Dave Stockton ------------------------------------------------------------------------ U-Turn's Profile: http://www.unicyclist.com/profile/691 View this thread: http://www.unicyclist.com/thread/42672 |
#17
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New invention. Hole less rim
U-Turn wrote: *... In this case, the inventor appears to be trying to solve a problem that either 1) does not exist, or 2) only exists for manufacturers. In this implementation, it appears to add several disadvantages to the user. ... * Yes, I think the only immediately significant benefit is that it eliminates the secondary operation of drilling the spoke holes in the extrusion before it is rolled into a rim. It will roll more smoothly without holes also. Both of those things benefit the manufacturer. At first the idea of being easier to seal for tubeless sounds great. But, as Dave said, I think rim strips do a good job of that. The biggest leakage problems seem to be at the tire bead. It may catch on but it will start with the most popular sizes in the bicycle market, most of which we don't use anyway. I do think it looks cool though. Scott -- S_Wallis - Unsafe at any speed "I am always doing that which I can not do, in order that I may learn how to do it." Pablo Picasso ------------------------------------------------------------------------ S_Wallis's Profile: http://www.unicyclist.com/profile/1520 View this thread: http://www.unicyclist.com/thread/42672 |
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