CF Fork: painted?
#1
Cries on hills
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Location: Central NH
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Bikes: 2007 Trek Pilot 1.2, 1969 Raleigh Sprite 5
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CF Fork: painted?
My Pilot 1.2 has a Bontrager HCM CF fork. Don't know much past that. Last couple of rides I've had a noise on the bike. When riding over cracked/rough pavement. Sounds like a fingernail tapping on the fork (that hollow high pitched sound, sound more like tapping on the fork than if I tap on the Al frame). I noticed the headset was slightly loose so I tightened it (didn't seem loose), did another ride and the noise was worse, so I don't think it's the headset.
Digging deeper I noticed a chip of paint coming off the dropout. Is that normal? I didn't think it was painted, but I guess it is. I don't see a crack, but I plan to look more closely tonight.
Digging deeper I noticed a chip of paint coming off the dropout. Is that normal? I didn't think it was painted, but I guess it is. I don't see a crack, but I plan to look more closely tonight.
#2
Senior Member
Carbon is almost always painted with at least a clear coat, mostly for UV protection I think. The clear coat cracking/chipping can give you a heads up about cracks or damage, causes many false alarms as well though.
Check silly things like QR skewers tight? Specifically with some Trek bikes I've seen a loose derailleur hanger combined with a loose skewer cause all sorts of weird noise.
Don't be afraid to take it to a Trek dealer or at least email some pictures to Trek. Visible damage or not assuming everything is tight and shouldn't be causing noise it's worth checking out.
Check silly things like QR skewers tight? Specifically with some Trek bikes I've seen a loose derailleur hanger combined with a loose skewer cause all sorts of weird noise.
Don't be afraid to take it to a Trek dealer or at least email some pictures to Trek. Visible damage or not assuming everything is tight and shouldn't be causing noise it's worth checking out.
#3
Cries on hills
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You know, I did think the front skewer was a bit more loose than usual. I'll tighten that and see if the noise goes away. That'd be an easy fix! Thanks.