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Carbon Fiber Stems?

Old 04-16-20, 07:20 AM
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adlai
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Carbon Fiber Stems?

If carbon fiber forks are used to dampen vibrations, how about carbon stems? They might be too short-- you could always get a smaller frame and a longer stem to make up for it.

Or any other ways to reduce vibrations in stems? Like, wouldn't it make sense to put dampeners in stems?
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Old 04-16-20, 09:35 AM
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woodcraft
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I think carbon seatpost can be worthwhile, but carbon stems have no benefit over aluminum,

can be heavier, and don't even look good. I have one on my bike- it came that way, & is the right size.

There have been various things invented for this.
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Old 04-16-20, 09:45 AM
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The fork is a big, long thing...If it's well-designed, it will smooth out a bike's ride slightly.

A stem is short and designed to firmly hold the handlebar in place. Not much compliance there.

A cf stem won't be any lighter than one made of aluminum, won't provide a smoother ride, and will generally be less attractive. Oh, and it will cost big bucks, too.
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Old 04-16-20, 09:47 AM
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The dampeners for your stem (and other parts) are called tires and tire pressure.
NOT a joke.
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Old 04-16-20, 10:17 AM
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Originally Posted by adlai View Post
If carbon fiber forks are used to dampen vibrations, how about carbon stems? They might be too short-- you could always get a smaller frame and a longer stem to make up for it.

Or any other ways to reduce vibrations in stems? Like, wouldn't it make sense to put dampeners in stems?
CF handlebars can dampen vibration. Stems are too short and you don't want them to flex anyway.
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Old 04-16-20, 12:42 PM
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My 2006 Trek 7.5 FX came with a aluminium fork, stem, and bars. I eventually swapped the stem and bars for carbon fiber stem and bars. The feeling of the ride was changed dramatically. There was much less vibration transmitted through the bars. The difference was most notable on the local chip sealed roads. So IMHO it was well worth the cost and effort to make the swap. It made the ride much more comfortable.
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Old 04-16-20, 08:21 PM
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https://redshiftsports.com/shockstop-suspension-stem

This is actually a nice little item for those who need some vibration help beyond what normal sized tires (for whatever bike you're using) and padded handlebar tape. I put one on my wife's gravel bike because she has an arthritic elbow. I installed it last fall and for the few rides she used it, she likes it. Since I have two arthritic elbows, I'm going to get one for myself.

Not the lightest thing in the world, but in the big picture of bike+rider weight, might be worth it to many of us, even those of us (mea culpa) with weight weenie tendencies.
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Old 04-16-20, 09:52 PM
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Originally Posted by Camilo View Post
https://redshiftsports.com/shockstop-suspension-stem

This is actually a nice little item for those who need some vibration help beyond what normal sized tires (for whatever bike you're using) and padded handlebar tape. I put one on my wife's gravel bike because she has an arthritic elbow. I installed it last fall and for the few rides she used it, she likes it. Since I have two arthritic elbows, I'm going to get one for myself.

Not the lightest thing in the world, but in the big picture of bike+rider weight, might be worth it to many of us, even those of us (mea culpa) with weight weenie tendencies.
I put a ShockStop stem on my touring bike & it works great. Redshift was super nice--I botched switching the elastomer (3 different incl) & they sent me a new stem with with the desired elastomer installed, no charge. Folks say carbon handlebars absorb some vibration but I think a carbon stem wouldn't help.
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Old 04-17-20, 09:46 PM
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My Culprit from 2013 has carbon stem, bars, frame, seat post, rims. It's not a comfy bike, but a pretty stiff wannabe race bike. Its a fun bike, but I wouldn't go touring on it. Old school steel provides a better touring platform. On a 40 or 50 lb loaded touring rig, a few grams saved with carbon components hardly matters.
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Old 04-17-20, 10:32 PM
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Are you trying to make some relevant point?
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Old 04-18-20, 07:28 PM
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Originally Posted by Slightspeed View Post
My Culprit from 2013 has carbon stem, bars, frame, seat post, rims. It's not a comfy bike, but a pretty stiff wannabe race bike. Its a fun bike, but I wouldn't go touring on it. Old school steel provides a better touring platform. On a 40 or 50 lb loaded touring rig, a few grams saved with carbon components hardly matters.
A year ago I was curious about saving weight on my touring bike, I was surprised to see that with carbon seatposts, stems & handlebars there was very little weight saving. I might have tried a carbon handlebar just for extra comfort but they're not ideal for clamping accessories.
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