Need Reasonably priced Carbon Fiber Seatpost
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Good vibrations
Lower tire pressure raises the risk of pinch flats, but many people ride at 90-100 psi and don't get pinch flats, so whether reducing 5 psi makes a difference for you is an open question. Few of us have tire pressure gauges that are accurate to 5 psi, so in fact when one person says they ride at 110 and another says they run 100, they may in fact be running at the same pressure. That said, there is no doubt that reducing tire pressure by 10 psi will have significantly more effect than virtually any other change you can make.
The scientific data says that anecdotal reports of RBR posters are clear. CF posts dramatically lower vibration for some people, and make no difference for others. IME, when you have this kind of situation then the question is wide open, perhaps dependent on the specific post, the length of the post out of the frame, the weight of the rider, the setup of the rest of the bike, and (perhaps most likely) the desire of some people to experience an improvement contrasted with the skepticsm of others.josh51699 said:
Lower tire pressure raises the risk of pinch flats, but many people ride at 90-100 psi and don't get pinch flats, so whether reducing 5 psi makes a difference for you is an open question. Few of us have tire pressure gauges that are accurate to 5 psi, so in fact when one person says they ride at 110 and another says they run 100, they may in fact be running at the same pressure. That said, there is no doubt that reducing tire pressure by 10 psi will have significantly more effect than virtually any other change you can make.
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Yeah, don't have any illusions about a significant difference from a carbon seatpost, but they can look cool! I got my Easton new from a vendor via eBay for a song (maybe $50).
Other options include better bar tape (since a lot of the vibration issue is probably in your hands), 700X25 tires, a saddle with ti rails, and as others have said lower tire pressure.
Other options include better bar tape (since a lot of the vibration issue is probably in your hands), 700X25 tires, a saddle with ti rails, and as others have said lower tire pressure.
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707 Posts
Take a look at Token, available from HyperBolts a RBR sponser, or on eBay. I got one to replace a Ritchey Pro seatpost and it was 80 grams lighter and easier to adjust. A good buy, good quality at a good price.
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Stiffer?
Wouldn't that depend on the specific design of each post? The type and density of the CF, how it is layed up, wall thickness, etc. would all determine which specific post was stiffer than the other.kronicade said:
Something can be stiff and still damp vibration, or be very flexible and vibrate a lot (like a spring). These are different properties.kronicade said:
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58 Posts
FSA SLK Carbon Fiber Seat Post
I got a brand new one on eBay for around $40 plus shipping and I am completely happy with it. If you are patient and watch them a period of a week or so, you can get a great deal. Using sniping software to place a last second bid helps to avoid a bidding war. I use Auction Sentry, available at www.auctionsentry.com Good luck.
I got a brand new one on eBay for around $40 plus shipping and I am completely happy with it. If you are patient and watch them a period of a week or so, you can get a great deal. Using sniping software to place a last second bid helps to avoid a bidding war. I use Auction Sentry, available at www.auctionsentry.com Good luck.
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354 Posts
I just swapped my high-zoot carbon post for a Thomson (I need a zero-setback model) and felt NO difference whatsoever. If you want better ride quality, get better tires, run them at 90psi, use standard 32-hole wheels, get a more padded seat ect. The carbon seatpost is just a waste of money unless you are picking one up for cheap, IMO. The FSA SLK mentioned above is VERY heavy and has a cheapo 1-bolt clamp that is hard to microadjust. A Thomson will be just as light and more functional than most any post on the market.
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some more non-scientific data. the Specialized pave seatpost reduced road buzz on my last alumimun ride. how much buzz? who knows, it's based on a feeling. But i'm in the 200lb zone and have alot more dead weight, so someone 145lb may not feel so much buzz to begin with. that being said you can pick up a used dura-ace seat post on eBay pretty cheap $30+. why dura-ace? because their really light, 2003 post is like 180 gms. the Pave can be usually had for $60+ on eBay. the last option is an Alpha Q seatpost but i think those are carbon wraped aluminum also $40+ on eBay.
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