Powertap Question
04-06-11, 06:35 PM
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Powertap Question
Can a Powertap hub be built like a Maviv SL wheel with low spoke count?
04-06-11, 08:45 PM
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Lowest spoke count on a PowerTap is 20.
04-06-11, 09:12 PM
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04-06-11, 10:06 PM
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04-07-11, 07:06 AM
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A PowerTap hub has a geometry that makes for a larger-than-normal difference in drive-side and non-drive-side spoke tension. I'd think that unless you're really, really light, going below 28 spokes would probably result in a wheel that won't last that long.
But wait for Psimet to weigh in. He's the expert.
But wait for Psimet to weigh in. He's the expert.
04-07-11, 07:41 AM
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Lots of questions here... why on earth would you want to put a powertap into a rim that has too few spokes, isn't particularly aerodynamic or light, and uses a proprietary spoke and nipple system?
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
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04-07-11, 08:00 AM
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A PowerTap hub has a geometry that makes for a larger-than-normal difference in drive-side and non-drive-side spoke tension. I'd think that unless you're really, really light, going below 28 spokes would probably result in a wheel that won't last that long.
But wait for Psimet to weigh in. He's the expert.
But wait for Psimet to weigh in. He's the expert.
04-07-11, 08:04 AM
#8
Senior Member
Lots of questions here... why on earth would you want to put a powertap into a rim that has too few spokes, isn't particularly aerodynamic or light, and uses a proprietary spoke and nipple system?
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Well at least you get paid to build the wheel.
I wonder if he will use it properly! LOL! (sorry I couldn't help myself)
04-07-11, 08:45 AM
#9
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Lots of questions here... why on earth would you want to put a powertap into a rim that has too few spokes, isn't particularly aerodynamic or light, and uses a proprietary spoke and nipple system?
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
jbdreyfus@yahoo.com
04-07-11, 01:49 PM
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04-08-11, 08:39 AM
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04-08-11, 10:37 AM
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In addition she is an accomplished Specialized fitter. Who goes to Specialized fitters the most needing the most help with their position? Now add on top of that she is what many would consider "very attractive". ....
.....place is usually filled with the demographic you would think that would bring in. As a result they like to talk to her and listen to what she says. Her and I have a great working relationship and she is learning about wheels while I am learning about some industry insider info. Good trade-off. I didn't pull any punches telling her that I thought there would probably be an issue at some point. She knows and understands and communicated that to the customer. It's her customer 100%. She took the money and delivered the wheel. The customer was aware that I was helping her with it but that it wasn't "my build".
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04-11-11, 12:36 PM
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Lots of questions here... why on earth would you want to put a powertap into a rim that has too few spokes, isn't particularly aerodynamic or light, and uses a proprietary spoke and nipple system?
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Standard Mavic prebuilts use their nipple system = no powertap. You can get them factory made with a powertap in them....but why.
Can you get a lower spoke count powertap? Yes.
As for the build geometry - not a worry. Powertaps don't really build up much differently than other hubs to be honest. I can get the same tension balance on them as on say a White Industries with differential flanges.
I recently built a powertap into a Mavic Cabone - basically a Hed Jet style rim. An open pro with a carbon fairing attached. As such the spoke bed is not in the depths of the "carbon" but rather eyeleted into the shallow rim. There are holes cut through the side of the fairing for the large bladed spokes that Mavic uses factory spec. Problem is that they are cut at an angle to accommodate the lacing pattern from the factory - radial - at least on one side. 2X don't like that and that's how powertaps roll.
One of those situations where the customer came to me, I strongly advised them against it because of the low spoke count and poor application. He didn't like me telling him that he was too heavy for that build so he went to the local shop. The local shop took the money then came to me to build it.
Just stay away from putting powertaps into Mavic prebuilts. Just a waste of time
Someone just asked in another forum I'm a member of about why his 20h Carbone with Powertap and DT Aerolite spokes has the spokes loosening after "hard training."
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