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  1. #1
    Enjoying the Ride Bob Loblaw's Avatar
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    quick question: valve stems + aero rims

    I just received my wheelset from coloradocyclist.com. They use Mavic CXP-33 hoops which have an aero shape to them. Is it still recommended to use the valve stem retaining nut with this type of rim shape? I've seen some with and some without.

    Thanks,
    Bob


  2. #2
    Sometimes knows stuff. rmfnla's Avatar
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    The stem nut is always optional. Using one on an aero rim really looks lame.
    Today, I believe my jurisdiction ends here...

  3. #3
    Senior Member Retro Grouch's Avatar
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    I don't use them on my personal bikes.

    I put them on customer bikes because they come with the tube and I'd rather avoid an argument about why or why not.

  4. #4
    Enjoying the Ride Bob Loblaw's Avatar
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    Perfect. Thanks guys.

  5. #5
    B-b-b-b-b-b-bicicle Rider orange leader's Avatar
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    They're entirely optional. I usually put them on when first inflating/installing the tube, and then take them off once there's enough air to hold the valve out via pressure (i.e. when just topping off).

    Make sure that your valve stems are long enough to get your tire pump to grip the stem. Your rims don't look super deep, but it may depend a little on what pump you're using too. Tubes come with a few different lengths of valves, or you can buy a valve extender which can be re-used from tube to tube.
    Rudimentum mendum menda
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    Judicium et erratum!

  6. #6
    Enjoying the Ride Bob Loblaw's Avatar
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    Quote Originally Posted by orange leader View Post
    They're entirely optional. I usually put them on when first inflating/installing the tube, and then take them off once there's enough air to hold the valve out via pressure (i.e. when just topping off).

    Make sure that your valve stems are long enough to get your tire pump to grip the stem. Your rims don't look super deep, but it may depend a little on what pump you're using too. Tubes come with a few different lengths of valves, or you can buy a valve extender which can be re-used from tube to tube.
    Good thought about leaving the nut on during installation... Thanks!

  7. #7
    cycles per second Gonzo Bob's Avatar
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    Quote Originally Posted by orange leader View Post
    They're entirely optional. I usually put them on when first inflating/installing the tube, and then take them off once there's enough air to hold the valve out via pressure (i.e. when just topping off).
    +1 Actually, I leave them on my box sections rims but do take them off my aero rims.

  8. #8
    Senior Member
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    I never use them on any rim including the two sets of wheel with CXP-33 rims I have.

  9. #9
    that bike nut BikingGrad80's Avatar
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    I don't put them on any of my rims. I tore half a dozen tubes at the stem before I stopped using them. Haven't torn one since.

  10. #10
    Sometimes knows stuff. rmfnla's Avatar
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    Quote Originally Posted by BikingGrad80 View Post
    I don't put them on any of my rims. I tore half a dozen tubes at the stem before I stopped using them. Haven't torn one since.
    Maybe a discussion of correct tire pressure might be in order...
    Today, I believe my jurisdiction ends here...

  11. #11
    cab horn
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    Stem nut is near useless. Causes more problems than anything.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  12. #12
    Pwnerer Wordbiker's Avatar
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    I love stem nuts because they're pretty...and prevent the stem from being pushed into the rim while I apply the pump fitting.
    Quote Originally Posted by ahsposo View Post
    Ski, bike and wish I was gay.

  13. #13
    In beaurocratic limbo urbanknight's Avatar
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    I use the stem nuts just because it makes it easier to get the pump head on. Other than that, they're not needed. And they do look weird on aero rims, and even weirder on OCR rims.
    "Well, I guess you can cut the arts as much as you want... Sooner or later, these kids aren't going to have anything to read or write about." (Richard Dreyfus as Glenn Holland)

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