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Old 02-27-06, 05:28 AM   #1
sestivers
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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?
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Old 02-27-06, 03:08 PM   #2
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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?
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.
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Old 02-28-06, 01:15 AM   #3
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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.
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Old 02-28-06, 07:57 AM   #4
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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.
Why dont you roll it aorund to your LBS
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Old 02-28-06, 08:17 AM   #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.
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Old 03-01-06, 02:06 AM   #6
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They're still stock on some Cannondale road bikes.
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Old 04-11-06, 03:04 PM   #7
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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.
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