[RBW] Re: 650b wheel building question

2014-08-01 Thread Benz, Sunnyvale, CA
Has spokes changed that much? According to a chart in Jobst's book, the yield strength of spokes was something like twice or thrice the tension typically applied in a normal wheel. The spokes are typically not any thinner than are currently available to mitigate spoke windup from to low torsion

Re: [RBW] Re: 650b wheel building question

2014-08-01 Thread Chris Chen
Sorry if I'm being a bit rude, but you hear a lot of weird stuff. cc On Fri, Aug 1, 2014 at 4:38 PM, lungimsam wrote: > Wit a minute!! >> > > >> Hold everything! >> > > >> *None of that stuff ever happened.* >> > > >> It was a hypothetical question for future reference, and to reassure >>

[RBW] Re: 650b wheel building question

2014-08-01 Thread lungimsam
> > Wit a minute!! > > Hold everything! > > *None of that stuff ever happened.* > > It was a hypothetical question for future reference, and to reassure > myself about the current LBS-built wheels I have. > What I meant was: > > *Is there any reason to believe that a non-650b LB

Re: [RBW] Re: 650b wheel building question

2014-08-01 Thread Ken Mattina
Hey guys, there's nothing wrong with a mechanic who shows a little humility. I know some great mechanics who aren't very good at promoting themselves. On the other hand, I've met some know-it-all mechanics who aren't very good. Just sayin' Ken On Fri, Aug 1, 2014 at 3:43 PM, Bill Lindsay wro

[RBW] Re: 650b wheel building question

2014-08-01 Thread Bill Lindsay
+1million Me: "Can I pay you to build some wheels?" Mech: "Sure! Is there anything special I need to know about these?" Me: "You know what? Nevermind" On Friday, August 1, 2014 2:21:12 PM UTC-7, Garth wrote: > > > Just saying . . lol . . . . if there is something they need to know > abou

[RBW] Re: 650b wheel building question

2014-08-01 Thread Garth
Just saying . . lol . . . . if there is something they need to know about building up some wheels . . . .you might want to reconsider having them build your wheels ! ;) It depends on what you value the most, being "local" and taking your chances, or having wheels that suredly "stand",

[RBW] Re: 650b wheel building question

2014-08-01 Thread Anton Tutter
The idea is that you want the spokes to be in the "sweet spot" between always being tensioned yet never reaching the limit of their elastic modulus. Too much tension will stress the eyelets and hub flanges, and you also approach the limit of the spoke elastic modulus; Too little tension and th

[RBW] Re: 650b wheel building question

2014-07-31 Thread M D Smith
I've always understood that the higher the tension, the stronger the wheel. I haven't re-read the Brandt book for a number of years, but isn't his technique effectively "get the spokes so tight that the wheel starts to taco, then back off a bit?" Mike in Htfd CT -- You received this message b

[RBW] Re: 650b wheel building question

2014-07-31 Thread Anton Tutter
Just an amateur builder here, having only built three wheels in my life (but hoping to do many more). But I would defer to the rim manufacturer for recommended spoke tensions. Some extra lightweight rims are not rated for high spoke tension. And some rim styles dictate lower or higher tension

[RBW] Re: 650b wheel building question

2014-07-31 Thread Kieran J
Indeed, I'm looking at having a set of 650b A23s built, and it's been said that those rims actually do well with high tension. It does seem to be a case-by-case matter, rather than something inherent to the wheel size. KJ On Thursday, July 31, 2014 1:13:16 AM UTC-4, Benz, Sunnyvale, CA wrote:

[RBW] Re: 650b wheel building question

2014-07-30 Thread Benz, Sunnyvale, CA
As a non-professional wheelbuilder who has nevertheless rode successfully on many of my own wheels (only one set of 650B wheels though), I would say no. There's nothing special other than the spoke lengths that are nominally halfway between 26" and 700c spoke lengths. :) The lower spoke tension