Date: Mon, 3 Mar 2008 21:17:28 -0800
From: istanb...@yahoo.com
Subject: [Randon] Recommendations for 26 inch Rando-Wheelset:
To: ran...@googlegroups.com
----- Original Message -----From: Scott CutshallSent: Monday, March 03, 2008 9:17 PMSubject: [Randon] Recommendations for 26 inch Rando-Wheelset:
Scott I hope you have better luck with 26” Mavic rims than myself. I had 2 rear Mavic 519 rims fail with cracks at the spoke nipples on the drive side spokes. These were 32H wheels with less than 6000K on them and built by a professional wheel builder. I am not a big guy (about 160 lbs). Perhaps something you should keep an eye on.
I switched to DT Swiss XR 4.1 rims, so far they have been good however a friend of mine using the same sort of bike has had a problem with cracks at the spoke eyelets same as I did with the Mavics. He is bigger and puts out a lot more torque than myself.
I also have some wheels (both 559, and 571) with Velocity rims, while they are heavier than the Mavics and DT Swiss they also appear to be bomb proof, I will be building all future wheels using Velocity rims.
As for 26” (559) tires
I have had problems with Continental GP3000’s with sidewall failures, Continental Ultra Gatorskins have been good. I will be trying my first set of Stelvios this coming season.
Dean
Never miss a thing. Make Yahoo your homepage. <BR
> Could anyone share some thoughts/opinions on what would be a really
> good 26 inch wheelset for Brevets?
>
> I may be entering my first Brevet this May, and as such am looking
> into outfitting my custom with a new Brevet-ready wheelset.
>
> I know, for certain, I will be building it up with a Schmidt SON
> hub and a Phil rear hub [either with cassette or freewheel] but I'm
> not sure on rims or tires.
The Panaracer Pasela 26 x 1.25 is IMHO as good a tire as you are
going to find for this purpose. As for 26" rims, I have had good
results with the polished Sun CR-18.
The answer to this question depends upon your particular desires and requirements, and also your weight and riding style. If you are looking to set a record and don’t mind a DNF then you need a light very aerodynamic wheelset; one of those boutique wheelsets. I want to finish, want a soft ride, and want reliability. Those Deep V wheels such as Velocity makes ride very harsh and are difficult to insert a spoke nipple into should a spoke break and you need a fiber one. My recumbent came with Velocity Uriels in 571 size. I built 559 32-spoke SUN CR18 rims and get a MUCH smoother ride and less buffeting in cross winds than those Uriels with the “V” design. The CR18 is a flat cross section design and weighs less than the Uriel rim. No the CR18 will not build up a 16-spoke wheel like the deep designs will, but it makes a very good 32 spoke wheel and the rims are cheep. I use Schwalbe Stelvio 559/28 and those give better flat protection than 571 tires will. I have a SON up front and an Ultegra in the rear. I weigh 200 lb.
Remember, that even with good lights, you cannot see like daytime and will run over potholes and debris that are avoidable in the daytime, or when you are fresh. Also, you need to be able to go over dirt for certain portions. I wonder why you are considering a freewheel hub. You need a special tool to remove the freewheel and each requires its own tool, and also a wrench or pliers. I doubt that many shops have much, if any, selection if one is needed in an emergency. A cassette can be purchased anywhere and there are small and light emergency cassette removers that do not require a wrench or pliers. The only advantage I see to the freewheel is that if the pawls go, they are integrated into the freewheel and thus easier to replace.
Harry Spatz
-----Original
Message-----
From: ran...@googlegroups.com
[mailto:ran...@googlegroups.com]On Behalf Of Scott
Cutshall
Sent: Tuesday, March 04, 2008
12:17 AM
To: ran...@googlegroups.com
color=navy>
>
>
> -----Original Message-----
> *From:* ran...@googlegroups.com [mailto:ran...@googlegroups.com]*On
> Behalf Of *Scott Cutshall
> *Sent:* Tuesday, March 04, 2008 12:17 AM
> *To:* ran...@googlegroups.com
> *Subject:* [Randon] Recommendations for 26 inch Rando-Wheelset:
>
>
>
> Could anyone share some thoughts/opinions on what would be a really
> good 26 inch wheelset for Brevets?
>
> I may be entering my first Brevet this May, and as such am looking
> into outfitting my custom with a new Brevet-ready wheelset.
>
> I know, for certain, I will be building it up with a Schmidt SON hub
> and a Phil rear hub [either with cassette or freewheel] but I'm not
> sure on rims or tires.
>
> Any thoughts would be greatly appreciated,
>
> Thanks-
>
> -Scott
>
>
>
> ------------------------------------------------------------------------
>
> Never miss a thing. Make Yahoo your homepage.
> <http://us.rd.yahoo.com/evt=51438/*http://www.yahoo.com/r/hs>
> color=navy>
>
>
> >
>
Date: Tue, 4 Mar 2008 11:42:09 -0600
From: deanz...@shaw.ca
Subject: [Randon] Re: Recommendations for 26 inch Rando-Wheelset:
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.
Date: Wed, 5 Mar 2008 20:55:10 -0800
From: bike2wo...@yahoo.com
Subject: [Randon] Re: Recommendations for 26 inch Rando-Wheelset:
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.</a
How do you know that the problem wasn’t the builder? If the spokes were over tightened, you will get this failure. I would want to hear from the builder how he chose the proper spokes and how he judged proper tension. Some builders think that if they tighten the spokes until the nipples are ready to round, that that is the best tension, but they are wrong. Getting a wheel round and true is not all there is to building a wheel.
Harry Spatz
-----Original
Message-----
From: ran...@googlegroups.com
[mailto:ran...@googlegroups.com]On Behalf Of Robert
Magyar
Sent: Wednesday, March 05, 2008
10:50 PM
To: ran...@googlegroups.com
Subject: [Randon] Re:
Recommendations for 26 inch Rando-Wheelset:
Scott,
I believe the problem you had with the Mavic 519's, was with the tires that you
paired them with.
Bob
Hi Harry, Robert
Interesting idea that smaller tires inflated to high pressure could cause the problem. Not something I had considered.
In my case the builder is a very well known for building quality wheels. I would doubt that spoke tensioning would be the cause. When I questioned him about the failures he had told me that he had noticed a decrease in quality/ increase in failures (can not remember exactly how he worded it) with Mavic rims. After the first failure I sent in the wheel which he re-built with a velocity rim. I had the 2nd one rebuilt locally as I needed it quickly and couldn’t wait for shipping etc.
Dean
By electing Sarkozy.
Regards!
Mike
From: hsp...@baystatescale.com
To: ran...@googlegroups.com
Subject: [Randon] Re: Recommendations for 26 inch Rando-Wheelset:
Date: Thu, 6 Mar 2008 10:24:51 -0500
There are better products on the market and companies that treat
their customers with respect. That is where our money should go, IMHO.
I use 26" wheels on my rando bike. I'm 6'4" and weigh 210 lbs. I
got 10 years out of a pair of Sun CR-16a rims until the rear finally
cracked around three spoke holes and I replaced it with a CR-18.
30,000+ miles, I can't really complain. Still have the CR-16a on the
front. I've never had a problem on a ride with these products in
tens of thousands of miles (unlike an old Sun Mistral). The hubs are
Phils, the rear is a 7 sp x 135 mm so the wheel has almost no dish
(the downside is that I haven't been able to get the Sachs freewheel
off in about 8 years and I am almost out of spare cogs. This is one
reason to go with cassette hubs).
I rode Ritchey Tom Slick 26 x 1.0 tires for years until their quality
control went south. Then I switched to Primo Racer 26 x 1.25s which
were nice and fast but too fragile. Some people report poor wet
traction with those tires but I never experienced that. The
complainers were in Seattle so I bow to their observations, given how
much more opportunity they have to ride in the rain. Currently I am
using Panaracer Pasela 26 x 1.25s with good results. They roll well,
they ride well, they don't puncture very often, they last about 2000
miles on the rear (a bit short, IMHO, but whaddya gonna do?). And
they're priced right. I use the 700 x 25 Paselas on my big wheel
bikes, too.
I bought the rims and tires at Hiawatha Cyclery, which I think is
also the OP's LBS.
Park does have some recommendations with their tensiometer. Here is an example: http://www.cyclingnews.com/tech/fix/?id=tm_1
Believe me when I say there “IS” a tension limit whether published or not. Why rim manufacturers don’t want to publish them is something they should answer. A cynic would say so that they can blame the builder when they fail. Perhaps the manufacturers don’t test their rims sufficiently to have a precise answer. Another possibility might be that different builds such as 3 cross versus radial, or different spoke diameters, or different types such as bladed versus round, or butted versus non butted, might have different allowable tensions. Still the answers are far from obvious. To complicate matters more, hubs also have maximums. Some will not allow radial spoking. I had a 1994 Santana tandem in which both hubs broke at their flanges at different times, in each case causing 2 spokes to lose tension. I believe I was told that these hubs had not been heat treated properly and were too brittle.
If I had to guess from what I have read, it is reasonably safe to use 120 kgf. I have used that with my SUN CR18 rims with good results. One set of wheels has around 7000 miles on it and I weigh around 200 lb.
</html
size=2 color=black face=Tahoma>
From: hsp...@baystatescale.com
To: ran...@googlegroups.com
Subject: [Randon] Re: Recommendations for 26 inch Rando-Wheelset:
Date: Thu, 6 Mar 2008 23:14:24 -0500