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seat post suspension

Old 12-03-16, 12:14 AM
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Haycal112
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seat post suspension

Just curious, but does anyone run a seat post suspension on their road bike? Is it one of those things that people don't do?
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Old 12-03-16, 12:57 AM
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If you get uncomfortable enough on a regular ride to want one, then something is wrong.
But I have used a short-travel unit for multi-day rides and XC marathons on my HT.
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Old 12-03-16, 04:21 AM
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Yes I do

I use a thudbuster on both my main commuter bike and my play go fast bike as well.

might have a tender tail bone compared with other cyclists but I have always needed suspended seat post.

Regards

Cranky
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Old 12-03-16, 08:04 AM
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Originally Posted by Haycal112 View Post
Just curious, but does anyone run a seat post suspension on their road bike? Is it one of those things that people don't do?
It could be that road riders had a hybrid bike in the past with seat post suspension. Then when they started riding a road bike without it, the performance was much better when riding at higher speeds. Thus, the uncompromising road bike set up.

Some owners have several bikes and when going a a "longish" ride, its usually the road bike. But sometimes that hybrid with the seat post suspension gets used for just a short ride with friends or little children.
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Old 12-03-16, 08:59 AM
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No, you do not do this on a road bike; that would make it a hybrid. There are also certain things that should never be done on a road bike:

*Wearing MTB shoes
*Mounting a bell on the bars
*Wearing tube socks
*Wearing a visor helmet
*Wearing baggy shorts
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Old 12-03-16, 09:37 AM
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Originally Posted by AlexCyclistRoch View Post
No, you do not do this on a road bike; that would make it a hybrid. There are also certain things that should never be done on a road bike:

*Wearing MTB shoes
*Mounting a bell on the bars
*Wearing tube socks
*Wearing a visor helmet
*Wearing baggy shorts
Phew. Glad to see bowler hat, flip flops and a thong are still ok! Had me worried for a second.

I have suspension seatpost on my hybrid [because it came with it], not on my road bike. I honestly don't see any point in having one. It doesn't seem to do much of anything.

Last edited by slimyfrog; 12-03-16 at 09:41 AM.
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Old 12-03-16, 10:24 AM
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Originally Posted by AlexCyclistRoch View Post
No, you do not do this on a road bike; that would make it a hybrid. There are also certain things that should never be done on a road bike:

*Wearing MTB shoes
*Mounting a bell on the bars
*Wearing tube socks
*Wearing a visor helmet
*Wearing baggy shorts
I am on this list.... but it is for public safety, no one wants to see me in just biking shorts. Lol
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Old 12-03-16, 10:44 AM
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Road bikes have a more forward riding position, so there's less weight on the saddle. Most of your weight is supported by your legs (pedalling forces), then the saddle and arms. Suspension seatposts are typically for upright cruisers where your entire weight is on the saddle.
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Old 12-03-16, 11:03 AM
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specialized puts those ugly semisuspension thing on their road bikes.
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Old 12-03-16, 11:35 AM
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Originally Posted by AlexCyclistRoch View Post
No, you do not do this on a road bike; that would make it a hybrid. There are also certain things that should never be done on a road bike:

*Wearing MTB shoes

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Old 12-03-16, 12:04 PM
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Originally Posted by Haycal112 View Post
I am on this list.... but it is for public safety, no one wants to see me in just biking shorts. Lol
May I ask how old you are.
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Old 12-03-16, 12:09 PM
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Originally Posted by rpenmanparker View Post
may i ask how old you are.
41.
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Old 12-03-16, 12:11 PM
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So how would the new ISO coupler on the new Trek Domane's be considered? Some compliance I would think that would mimic a bit of suspension.
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Old 12-03-16, 12:16 PM
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I (2 Thudbuster versions on 2 bikes ) ride my bikes on the road, though they are not like you may have wanted to ask about, the 17 pound Wunderbike..

There are Impact absorbing carbon fiber seat poists , Specialized and Ergon* make those.. for the gram conscious acquisitive types ..


* Products ? ERGON BIKE
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Old 12-03-16, 01:46 PM
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Originally Posted by Haycal112 View Post
So how would the new ISO coupler on the new Trek Domane's be considered? Some compliance I would think that would mimic a bit of suspension.
That's actually a suspension, unlike a suspension seat-post. A true suspension isolates the bottom bracket and pedals from impacts. Seat post suspensions only isolate your butt, and don't do anything to improve traction or reduce impact to your legs.
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Old 12-03-16, 02:20 PM
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Originally Posted by AlexCyclistRoch View Post
No, you do not do this on a road bike; that would make it a hybrid. There are also certain things that should never be done on a road bike:

*Wearing MTB shoes
*Mounting a bell on the bars
*Wearing tube socks
*Wearing a visor helmet
*Wearing baggy shorts
Well sure, if you want to stick to the absolute poseur ****** uniform.

But tube socks...yeah, that's verboten, and baggy pantaloons, a hindrance.

MTB shoes are far more pragmatic than road, and if the sole is top shelf the differences are nil compared to road shoes.
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Old 12-03-16, 02:23 PM
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Originally Posted by Haycal112 View Post
Just curious, but does anyone run a seat post suspension on their road bike? Is it one of those things that people don't do?
I've heard good things about this post:

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Old 12-03-16, 02:24 PM
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Originally Posted by gsa103 View Post
That's actually a suspension, unlike a suspension seat-post. A true suspension isolates the bottom bracket and pedals from impacts. Seat post suspensions only isolate your butt, and don't do anything to improve traction or reduce impact to your legs.
Trek's decoupler is NOT true suspension according to your definition. Neither the pedals nor bottom bracket are isolated from impacts.

Also, seat post suspension DOES improve traction and DOES reduce impact to your legs. Seat post suspension however, is not damped, like hydraulic suspension.
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Old 12-03-16, 02:31 PM
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Originally Posted by American Euchre View Post
Trek's decoupler is NOT true suspension according to your definition. Neither the pedals nor bottom bracket are isolated from impacts.

Also, seat post suspension DOES improve traction and DOES reduce impact to your legs. Seat post suspension however, is not damped, like hydraulic suspension.
Trek's system allows the rear wheel to flex upward independent of the bottom bracket, that provides isolation.

And no, a suspension seatpost doesn't do that. If my butt is 5mm off the saddle, the suspension post does nothing.
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Old 12-03-16, 09:14 PM
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Originally Posted by UnfilteredDregs View Post
I've heard good things about this post:
K force is better.
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Old 12-04-16, 04:31 AM
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Originally Posted by Jiggle View Post
K force is better.
I'll check it out.

I'm in the process of finalizing my frame geometry for my 650b go everywhere bike. I need to see if a setback can be incorporated or not. Geo is pretty tight due to my reach constraints and I don't want toe overlap. Setback is pretty important as I understand when it comes to comfort. I do remember things becoming more "noticeable," when I went with a straight post with my current bike while figuring out my reach.

Threw 650b on the Salsa as well. The bike handles far better with the smaller wheels. Was like a monster truck with the 700c... Now cornering has taken on a whole new dimension.
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