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ATTN: Boyd wheel owners (Quesiton about wheel flex)

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ATTN: Boyd wheel owners (Quesiton about wheel flex)

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Old 09-09-11, 03:57 PM
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ATTN: Boyd wheel owners (Quesiton about wheel flex)

Do you feel that your boyd wheels flex much? I went from a heavier cane creek arrowhead wheel to the boyd vitesse 30mm wheel. maybe I'm still not used to this lighter wheel at this point but it feels like there is way more flex in this boyd set than there was.

You think I'm feeling some flex or am I just not used to a lighter wheel? I feel it specifically when I am taking off and sprinting. I'm 5'9 and 170lbs.
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Old 09-09-11, 04:12 PM
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They shouldn't be flexy, not with how wide the flange spacing is. Can you try a little trick that might help.

Put your wheel in the bike and clamp the skewer down, see if there is a very slight play in the hub (like a very small knock when you rock it back and forth). If there is then you can tighten the hub up a bit (using two 5mm allen keys). You can really tighten it down quite hard. Every once in a while the NDS end cap has been known to loosen (I actually put a drop of loctite on the axle threads on the NDS), and if it does loosen it can make it feel like the back wheel is flexy.

Let me know if this helps.
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Old 09-09-11, 04:28 PM
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I will go look at it now! thanks
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Old 09-09-11, 04:35 PM
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ok, yes there is a small amount of moving. not much, but it is there.....


I was able to tighten the hub more than I was thinking I would be able to. after tightening, I reinstalled the wheel and tighened down the skewer. seems to be the same amount of minor movement there was before.
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Old 09-09-11, 08:24 PM
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Originally Posted by coachboyd
They shouldn't be flexy, not with how wide the flange spacing is. Can you try a little trick that might help.

Put your wheel in the bike and clamp the skewer down, see if there is a very slight play in the hub (like a very small knock when you rock it back and forth). If there is then you can tighten the hub up a bit (using two 5mm allen keys). You can really tighten it down quite hard. Every once in a while the NDS end cap has been known to loosen (I actually put a drop of loctite on the axle threads on the NDS), and if it does loosen it can make it feel like the back wheel is flexy.

Let me know if this helps.
helped me too!
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Old 09-13-11, 06:45 PM
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bump .
problem not fix ?
 
Old 09-13-11, 06:49 PM
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I have an email out to boyd and he said he would contact me asap to go over it. I tightened the hub but that didn't help any of the side to side play I get. I was at my LBS today and discussing this situation with them and they said there really shouldnt' be any play at all. so I'd like to bring my bike in and see what they say so i can relay it to boyd.
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Old 09-14-11, 08:19 AM
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No flex here on my 50mm tubulars. They are strung up tight. Also, I just did some rear pawl maintanence, easy. Nice and tight both wheels.

Could be several things going on...Boyd will take care of you.
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Old 09-14-11, 08:57 AM
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I'm not saying that this is the problem here specifically but keep it in mind as you try to sort out the problem.

I had a batch of front hubs from a supplier other than the one Boyd uses that would develop the same problem if radially laced. There is a natural bit of give in the flange as it is pulled apart and this particular batch of hubs was made at the outer limit of tolerance so that the bearing seats deformed ever so slightly causing slight side to side play in the hubs.

It was not visible to the naked eye by any means.

Once I lowered the tension in the hubs the play dissappeared (at a tension too low to ride).

I have been working with another supplier (again different from Boyd) developing new hubs and we have run across this same issue. It has a lot to to with where the bearings are place in relation to the hub flanges.

Ok, I'm rambling a bit but my point was that things may be tight but there can still be lateral bearing movement for the reason I described.

Toss it out to the shop and Boyd as a possible cause. It may or may not be helpful.
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Old 09-14-11, 09:02 AM
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I have the same Vitesse wheels (except with a Powertap on the back) and there is no "flex" at all. Great wheels. The Boyd hub on my front wheel is amazing. I can spin the wheel on my bike stand and would have time to drink 1-2 beers before the thing stops. These wheels are a steal.
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Old 09-14-11, 01:47 PM
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Originally Posted by bianchi10
Do you feel that your boyd wheels flex much? I went from a heavier cane creek arrowhead wheel to the boyd vitesse 30mm wheel. maybe I'm still not used to this lighter wheel at this point but it feels like there is way more flex in this boyd set than there was.

You think I'm feeling some flex or am I just not used to a lighter wheel? I feel it specifically when I am taking off and sprinting. I'm 5'9 and 170lbs.
looks like front hub could have wider spacing and laced heads in, rear looks good, also depends how light the spokes are dt rev flex alot, dt db don't, tension also has a affect too
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