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  1. #1
    Ono! sestivers's Avatar
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    I've been getting a fairly loud popping noise from the cassette area of my bike when I put a lot of force on the pedals. It happens about 75% of the times that I start going from a complete stop. After removing the cassette and trying to feel for looseness by hand, I determined that there was some play in the rear axle that was allowing the freehub to slip. I decided to take the freehub body off while I had the axle nuts loosened and I inspected it. One of the spring-loaded pawls doesn't really spring back like the other two. After I removed the play from the axle and re-installed the wheel, the noise remains! It might even be worse than before.

    Could the non-springy pawl be slipping a little bit under large tension and then popping back into place, thus making the noise? Other than the noise is it something I should be concerned about? I might look into sending the wheel to Gipiemme since it's only 1 year old but that would leave me without a bike. Any recommendations on this?
    Steve

  2. #2
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    Quote Originally Posted by sestivers
    I've been getting a fairly loud popping noise from the cassette area of my bike when I put a lot of force on the pedals. It happens about 75% of the times that I start going from a complete stop. After removing the cassette and trying to feel for looseness by hand, I determined that there was some play in the rear axle that was allowing the freehub to slip. I decided to take the freehub body off while I had the axle nuts loosened and I inspected it. One of the spring-loaded pawls doesn't really spring back like the other two. After I removed the play from the axle and re-installed the wheel, the noise remains! It might even be worse than before.

    Could the non-springy pawl be slipping a little bit under large tension and then popping back into place, thus making the noise? Other than the noise is it something I should be concerned about? I might look into sending the wheel to Gipiemme since it's only 1 year old but that would leave me without a bike. Any recommendations on this?
    Dont know if it is a road or MTB bike. No idea of mileage. Having said all that a freehub is about 20 dollar so perhaps you should try a new one. Be unlikely for it to go so quick on a road bike, you should get 30k plus from a freehub without bother. The other option for you is to look at Parktool web site and give it a bit of a service by washing it out with oil. I have heard of MTB freehub wearing out. Why not try your local LBS - one quick spin and they should be able to tell you. Hope this is of some help.

  3. #3
    Ono! sestivers's Avatar
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    Sorry, this is for a road bike, ~2000 miles. I think it's pretty sketchy to have problems this early also... my last bike with RX100 hubs never had a problem.
    Steve

  4. #4
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    Quote Originally Posted by sestivers
    Sorry, this is for a road bike, ~2000 miles. I think it's pretty sketchy to have problems this early also... my last bike with RX100 hubs never had a problem.
    Why dont you roll it aorund to your LBS

  5. #5
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    Now you know why we usually recommend staying with Shimano or Campagnolo hubs.

    I didn't know Gipiemme was still selling components.

  6. #6
    Ono! sestivers's Avatar
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    They're still stock on some Cannondale road bikes.
    Steve

  7. #7
    Ono! sestivers's Avatar
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    The problem is fixed. I removed the freehub body from the hub and removed the spring (it's like half of a keyring) that forces the ratchet pawls to spring outwards. Then I used pliers to increase the stiffness of the spring and make it closer to a perfect circle. After I re-installed the spring, all three pawls had even spring-back tension. No noise since then at all.

    I'm not sure what caused the spring to get deformed in the first place, but at least now I know a lot more about hubs and ratchets in general.
    Steve

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