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#1
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rim and spokes recommendations sought
I'm replacing my rear 26/559 rim and would like your relevant
comments pro/con on rims and spokes. I'm heavy and go long distances so would need something durable and then second to that would be performance considerations. |
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#2
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116 wrote:
I'm replacing my rear 26/559 rim and would like your relevant comments pro/con on rims and spokes. I'm heavy and go long distances so would need something durable and then second to that would be performance considerations. The most important thing is to get a wheel with adequate spoke tension, no spoke windup, high quality spokes, nipples, and hub and stress-relief [1]. Any of the Velocity and Sun rims intended for mountain bike use should work just fine when the above criteria are met. [1] The last is somewhat controversial in its mechanism and effect. It MAY be important, and is certainly not harmful. -- Tom Sherman - Earth |
#3
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I have my Rohloff Speedhub in a Velocity Aeroheat rim. As Tom says, they're
made for MTB use, are popular in the 'bent world, and seem to perform well. -- --Scott "116" wrote in message ... I'm replacing my rear 26/559 rim and would like your relevant comments pro/con on rims and spokes. I'm heavy and go long distances so would need something durable and then second to that would be performance considerations. |
#4
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On Sat, 5 Feb 2005 09:28:34 -0500, "Freewheeling"
wrote: I have my Rohloff Speedhub in a Velocity Aeroheat rim. As Tom says, they're made for MTB use, are popular in the 'bent world, and seem to perform well. I just got my velocity deep v with their hub and black smokes for the rear only 159.00 I also ordered a pantour suspension hub and deep v for the front. the deep v's are pretty much bullet proof and look cool too. -- Knight-Toolworks & Custom Planes Custom made wooden planes at reasonable prices See http://www.knight-toolworks.com For prices and ordering instructions. |
#5
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The most important thing is to get a wheel with adequate spoke tension,
no spoke windup, high quality spokes, nipples, and hub and stress-relief At this point I'm looking at getting DT Competitions. Any of the Velocity and Sun rims intended for mountain bike use should work just fine when the above criteria are met. It came with Velocity Razors. With the front rim, at about 2,000 miles there were getting ever worse cracks in the middle causing the sides to push out and rim brakes to hit on both sides. I quickly replaced them with whatever the LBS had and have no problems with the front since. Now, at 9,000 miles the brakes are touching at both sides on at least one part of the remaining Velocity Razor rim on the rear. While I haven't pulled the rear tire off, I assume the same cracking on the front is occurring on the rear. Hence my desire to replace the rear rim and while I'm at it the rear spokes as well (though to my surprise all the rear spokes are the original straight 14 gauges). My point in telling my story is that rightly or wrongly I'm turned off by Velocity rims. The LBS recommended Sun Rhyno Lites, but I want to get as many useful opinions as I can--I go very long distances on my bike and need to rely on its components. The concern I have with MTB rims like the Rhyno Lites is that I run a 26x1.25 tire and it is unclear to me that a MTB rim that will hold a 26x2.5 tire would work or work well for me. Anyone have comments on this? |
#6
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116 wrote:
The most important thing is to get a wheel with adequate spoke tension, no spoke windup, high quality spokes, nipples, and hub and stress-relief At this point I'm looking at getting DT Competitions. Any of the Velocity and Sun rims intended for mountain bike use should work just fine when the above criteria are met. It came with Velocity Razors. With the front rim, at about 2,000 miles there were getting ever worse cracks in the middle causing the sides to push out and rim brakes to hit on both sides. I quickly replaced them with whatever the LBS had and have no problems with the front since. Now, at 9,000 miles the brakes are touching at both sides on at least one part of the remaining Velocity Razor rim on the rear. While I haven't pulled the rear tire off, I assume the same cracking on the front is occurring on the rear. Hence my desire to replace the rear rim and while I'm at it the rear spokes as well (though to my surprise all the rear spokes are the original straight 14 gauges).... Why replace the spokes? There are people who have ridden the same spokes for well over a hundred thousand miles, replacing the rims several times due to braking surface wear and rebuilding the hubs when the bearings wear out. However, if several spokes have broken, then it would be best to replace the lot. My point in telling my story is that rightly or wrongly I'm turned off by Velocity rims. The LBS recommended Sun Rhyno Lites, but I want to get as many useful opinions as I can--I go very long distances on my bike and need to rely on its components. Get rims that have a polished surface instead of hard anodizing. The anodizing is a layer of aluminium oxide (ceramic) which is brittle. When the aluminium oxide cracks, it produces a stress riser that can lead to crack propagation in the base aluminium. The concern I have with MTB rims like the Rhyno Lites is that I run a 26x1.25 tire and it is unclear to me that a MTB rim that will hold a 26x2.5 tire would work or work well for me. Anyone have comments on this? Sheldon Brown reproduces a chart [1] on his website that shows rim width/tire width compatibility. While some maintain that these guidelines are too conservative, problems are unlikely if they are followed. Sun makes narrower ISO 559-mm rims than the Rhyno Lite [2]. [1] http://www.sheldonbrown.com/tire_sizing.html. [2] http://www.sun-ringle.com/prods/mtbrims.html. [3] [3] The Sun-Ringle web page is one of the worst I have ever encountered. -- Tom Sherman - Earth |
#7
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Tom Sherman wrote: My point in telling my story is that rightly or wrongly I'm turned off by Velocity rims. The LBS recommended Sun Rhyno Lites, but I want to get as many useful opinions as I can--I go very long distances on my bike and need to rely on its components. snip The Velocity Razors are *extremely* light, and it's not surprising that they've worn out and are failing. As Tom said, the Aeroheats are perfectly adequate replacements. Sun makes narrower ISO 559-mm rims than the Rhyno Lite [2]. [1] http://www.sheldonbrown.com/tire_sizing.html. [2] http://www.sun-ringle.com/prods/mtbrims.html. [3] [3] The Sun-Ringle web page is one of the worst I have ever encountered. -- Tom Sherman - Earth Ditto on the critisism of the Sun-Ringle website. I would probably pick the CR-18 rim- but then, I don't have to. I have CR-18 rims on my (and my wife's) Tour Easys, with 32mm wide tires- roughly the equivalent of your 1.25" tires. The CR-18's have lasted through several Pacific Northwest winters, with their associated abrasive muck. It's getting close to replacement time, though- after many thousands of miles. I've built my own wheels for the past 20 years. Once I learned to build them with high, even tension, they rarely go out of true and I never break spokes. I'm not light, either- I'm 6-foot-4 and around 225 pounds nowadays. Jeff |
#8
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Why replace the spokes?
Well, I was thinking, why not? Actually, in my cycling lifetime I've had to deal with the occasional rounded spoke nipple but I suppose I could just replace all of these to insure they are all up to snuff and keep the same spokes. Then again this would be a convenient time to change to 14-15-14 over the current straight 14 gauge spokes. Get rims that have a polished surface instead of hard anodizing. The anodizing is a layer of aluminium oxide (ceramic) which is brittle. When the aluminium oxide cracks, it produces a stress riser that can lead to crack propagation in the base aluminium. Makes sense to me, or at least this would explain what I've encountered. Sheldon Brown reproduces a chart [1] on his website that shows rim width/tire width compatibility. I will check this out, thanks! The Velocity Razors are *extremely* light, and it's not surprising that they've worn out and are failing. As Tom said, the Aeroheats are perfectly adequate replacements. Thanks, I'll check this out. I would probably pick the CR-18 rim- but then, I don't have to. I have CR-18 rims on my (and my wife's) Tour Easys, with 32mm wide tires- roughly the equivalent of your 1.25" tires. I'll check these out as well. |
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