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#1
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Creaking Carbon bar stem headset interface????
Hi all,
I have a specialized tarmac pro with full dura ace. Its only a couple of 100 k old but it has developed an annoying squeak. When riding off the saddle the squeak occurs in time with the downward pedal strokes but it is in the handlebar /stem/ headset interface because if you push hard enough on each side of the handlebars (standing over the bars) you can replicate the noise when standing still. The bike has carbon oversized specialized bars and matching carbon 4 bolt stem. all the bolts seem tight enough (without a torque wrench) and the brake levers are very secure. I'm wondering about where the stem meets the carbon spacers. Do you need someting special to lube carbon? Anybody solved a similar problem or 1. 105 Kg is too heavy for this bike and the squeak will always be there? or 2. I should take it back to the dealer and keep hassling them until there are no more squeaks. After all it did cost nearly $6000 AUS so they should do something to earn their money Looking forward to any and all replies Jock |
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#2
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Jock wrote:
Hi all, I have a specialized tarmac pro with full dura ace. Its only a couple of 100 k old but it has developed an annoying squeak. When riding off the saddle the squeak occurs in time with the downward pedal strokes but it is in the handlebar /stem/ headset interface because if you push hard enough on each side of the handlebars (standing over the bars) you can replicate the noise when standing still. The bike has carbon oversized specialized bars and matching carbon 4 bolt stem. all the bolts seem tight enough (without a torque wrench) and the brake levers are very secure. I'm wondering about where the stem meets the carbon spacers. Do you need someting special to lube carbon? Anybody solved a similar problem or 1. 105 Kg is too heavy for this bike and the squeak will always be there? or 2. I should take it back to the dealer and keep hassling them until there are no more squeaks. After all it did cost nearly $6000 AUS so they should do something to earn their money If you're not comfortable removing, greasing and replacing stem bolts (and maybe cleaning the bar while the faceplace is off), then by all means take it back to the dealer. I wouldn't consider it "hassling" them to insist on a quiet bike. Creaks and squeaks suck. BS |
#3
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Jock wrote:
Hi all, I have a specialized tarmac pro with full dura ace. Its only a couple of 100 k old but it has developed an annoying squeak. When riding off the saddle the squeak occurs in time with the downward pedal strokes but it is in the handlebar /stem/ headset interface because if you push hard enough on each side of the handlebars (standing over the bars) you can replicate the noise when standing still. The bike has carbon oversized specialized bars and matching carbon 4 bolt stem. all the bolts seem tight enough (without a torque wrench) and the brake levers are very secure. I'm wondering about where the stem meets the carbon spacers. Do you need someting special to lube carbon? Anybody solved a similar problem or 1. 105 Kg is too heavy for this bike and the squeak will always be there? or 2. I should take it back to the dealer and keep hassling them until there are no more squeaks. After all it did cost nearly $6000 AUS so they should do something to earn their money Looking forward to any and all replies Jock I've never really seen carbon squeak much but YMMV. Are you sure it's not pressure on the front wheel thats making the noise? Other than that a bit of lithium grease in the spacers would be worth a try. brett |
#4
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Take it to the shop you bought it from, get them to fix it!
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#5
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I don't have a ptoblem dismantling the bars. stem ect but can you
cucessfuuly put grease on the bar/stem interface? I'll definitely try lubing the spacers and probably the top cap on the stem. Thanks Jock |
#6
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I don't have a ptoblem dismantling the bars. stem ect but can you
cucessfuuly put grease on the bar/stem interface? I'll definitely try lubing the spacers and probably the top cap on the stem. Thanks Jock |
#7
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I don't have a ptoblem dismantling the bars. stem ect but can you
cucessfuuly put grease on the bar/stem interface? I'll definitely try lubing the spacers and probably the top cap on the stem. Thanks Jock |
#8
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I don't have a ptoblem dismantling the bars. stem ect but can you
cucessfuuly put grease on the bar/stem interface? I'll definitely try lubing the spacers and probably the top cap on the stem. Thanks Jock |
#9
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On Sun, 22 May 2005 16:36:00 +1000, Jock wrote:
I have a specialized tarmac pro with full dura ace. Its only a couple of 100 k old but it has developed an annoying squeak. When riding off the saddle the squeak occurs in time with the downward pedal strokes but it is in the handlebar /stem/ headset interface because if you push hard enough on each side of the handlebars (standing over the bars) you can replicate the noise when standing still. The bike has carbon oversized specialized bars and matching carbon 4 bolt stem. all the bolts seem tight enough (without a torque wrench) and the brake levers are very secure. I'm wondering about where the stem meets the carbon spacers. Do you need someting special to lube carbon? I lightly grease the areas where the bars, stem (carbon) and associated bits meet whenever they start to squeak or click, and it hasn't caused any problems. 1. 105 Kg is too heavy for this bike and the squeak will always be there? or 2. I should take it back to the dealer and keep hassling them until there are no more squeaks. After all it did cost nearly $6000 AUS so they should do something to earn their money Apart from the stem/bars, pedals and seatpost/saddle may regularly develop squeaks and clicks, too. You can't keep taking the bike back for this stuff forever - learn to pull them apart, clean and grease them up. The one that you probably shouldn't mess with is the bottom bracket, which may be the culprit if you eliminate ther others. -- bpo gallery at http://www4.tpgi.com.au/users/mvw1/bpo |
#10
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Jock wrote: Hi all, I have a specialized tarmac pro with full dura ace. Its only a couple of 100 k old but it has developed an annoying squeak. When riding off the saddle the squeak occurs in time with the downward pedal strokes but it is in the handlebar /stem/ headset interface because if you push hard enough on each side of the handlebars (standing over the bars) you can replicate the noise when standing still. The bike has carbon oversized specialized bars and matching carbon 4 bolt stem. all the bolts seem tight enough (without a torque wrench) and the brake levers are very secure. You said it all....take it back to the place you bought it. Have all the bolts greased, torques. Ensure the HS bearings are greased, where they live in the headtube. Most bikes outta boxes are assembled poorly. |
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