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  1. #1
    mtbr member
    Reputation: fueledbymetal's Avatar
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    Whine from new lefty hub?

    I have a new wheelset with a new Lefty hub and took it out for the first time today. After about 7 miles or so I started to notice a whine from the front hub. The pitch changed with speed but only happens while I'm on the bike (it's silent when I hold the bike and spin the wheel by hand). Any ideas?
    2014 Seven Ti geared bike (in the womb!)
    2012 Seven Ti SS
    2012 Seven Steel SS w/rigid fork

  2. #2
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    I just bought a new set of Crossmax ST's and the front hub did the same thing. I very carefully sprayed a bit of WD40 around the axle bolt to lube the O-ring and it went away.

  3. #3
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    Cool, I'll try lubing the O ring and see how it goes...
    2014 Seven Ti geared bike (in the womb!)
    2012 Seven Ti SS
    2012 Seven Steel SS w/rigid fork

  4. #4
    mtbr member
    Reputation: Kayba's Avatar
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    Quote Originally Posted by fueledbymetal
    I have a new wheelset with a new Lefty hub and took it out for the first time today. After about 7 miles or so I started to notice a whine from the front hub. The pitch changed with speed but only happens while I'm on the bike (it's silent when I hold the bike and spin the wheel by hand). Any ideas?
    I had the same problem on my first ride too. It appeared that the O-ring was jammed between the hub cap and the bolt. Some lube should help. If it doesn't, take the O-ring off. The only drawback of that is that the bolt rattles in the hub when the wheel is not mounted on the Lefty.
    Kayba

  5. #5
    narCOTIC
    Reputation: Hadouken*'s Avatar
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    Quote Originally Posted by fueledbymetal
    Cool, I'll try lubing the O ring and see how it goes...
    HA HA!

    (childish i know)

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