aero bar attachment
#1
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aero bar attachment
If the position on a race frame is more aggressive and on endurance frame more relaxed..which frame would put you in a better position for resting on aero bar attachment?
#2
Throw the stick!!!!
A time trial bike?
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#3
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Not a time trial bike..just attachment for regular bars..here in florida we have flat straight roads like a1a where you can just grind out miles. I was wondering which frame would offer a more comfortable position (road or endur) for the add ons you can clip to your bars.
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Don't put aero bars on anything except a TT bike. Or if you don't have the funds to buy one you can take your most aggressive bike and slam your saddle forward, slam your stem, and then put the aero bars on.
#5
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Not a time trial bike..just attachment for regular bars..here in florida we have flat straight roads like a1a where you can just grind out miles. I was wondering which frame would offer a more comfortable position (road or endur) for the add ons you can clip to your bars.
So you can think of it as keeping the rest of your body in the exact same position, but you move your arms to become more aerodynamic (and possibly more comfortable).
Keep in mind that depending on the aerobars you get, the pads will be at a different height (some are adjustable) so you might end up in a different position, but in theory, if you get the right aerobars, your body would stay in the same position. If you don't have any, I would recommend buying the most adjustable ones so you can mess around with the placement.
#6
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Don't put aero bars on anything except a TT bike. Or if you don't have the funds to buy one you can take your most aggressive bike and slam your saddle forward, slam your stem, and then put the aero bars on.
#7
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Silliness. I hate seeing bikes with bars higher than the saddle that have aero bars. Just so stupid.
Aero bars are called aero bars beause people who want to go fast need them. Not peple who want to ride the whole day. I've used them once when I did a century on my fixed gear. I never needed them.
Last edited by FixedDriveJess; 03-28-13 at 11:45 AM.
#8
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I've ridden many thousands of miles on a race-style road frame while on a set of clip-on aerobars. It works just fine. Not as fast as an all-out TT bike, but more comfortable. You'll love it. To answer your question, IMO a standard road frame will work the best for you because it has a slightly more aggressive position that melds well with clip-ons. If you are already comfortable riding in the drops, you'll be even more so on the clip-ons. Roll your pelvis forward, drop your chest and head. You may need to change saddle type or drop the nose a hair. I've done some very long rides with this set-up on a carbon race bike, comfortable the whole way.
#9
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Why do you think a tourer would put their bars higher than their saddle? Methinks a bit of elitism here, but then this is the 41. Whatever the height of the bars, running aero bars will make a rider faster on the flat. Faster is stupid?
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No eliteism. I just think aerobars belong on aero bikes. If you want you road bike to be faster, drop your stem.
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Being comfortable is just as important as being aero. If you're uncomfortable being aero, your performance will suffer despite aero savings. Just in regards to handlebar height.
I'd say aero bars as well. For the situation you described, aero clip-ons are probably your best bet. If the OP was switching into triathlon/TT races, saving up for a tri/TT bike would serve the most benefit, but it sounds like a desire to be more aero on a long stretch of road.
I'd say aero bars as well. For the situation you described, aero clip-ons are probably your best bet. If the OP was switching into triathlon/TT races, saving up for a tri/TT bike would serve the most benefit, but it sounds like a desire to be more aero on a long stretch of road.
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No eliteism. I just think aerobars belong on aero bikes. If you want you road bike to be faster, drop your stem.
People don't use them on touring bikes because they want to go faster, they use them because they want to be comfortable, and possibly go faster.
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If you put aero bars on a touring setup, the aero benefits are nil. The plus side is it gives you another position for long rides and perhaps a comfortable relief for your back and arms.. But you are no faster with bars sitting high and the seat in an unaltered position than you are just riding in the drops.
#14
The Recumbent Quant
Can you setup two bikes where a person is lower in the drops on one than they would be in the aerobars on another? Sure. But so what.
This I agree strongly with. It made a huge difference for me as far as comfort level goes.
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The statement isn't true. The more you flatten out your torso, the less wind it catches, the more aerodynamic you are. For every clip-on aero bar setup I've ever seen, the rider was flatter/lower with the aerobars than in the drops.
Can you setup two bikes where a person is lower in the drops on one than they would be in the aerobars on another? Sure. But so what.
Can you setup two bikes where a person is lower in the drops on one than they would be in the aerobars on another? Sure. But so what.
Not only the flatter/lower, but aerobars should keep the arms closer, providing the wind with one leading edge for the body. Hands in the drops or hoods provide two leading edges, plus the following edge of the rider's torso (at this point not covered by the arms in an aerobar).
In other words, properly setup aerobars on a road bike will provide aero benefit. It is much like comparing the Giro Air Attack with the Giro Selector helmet. The Selector is designed to cut through the air. The Air Attack is as well, but without sacrificing regular helmet ventilation. In the end, you get a more well-rounded helmet, not the most aerodynamic, not the most ventilated, but a solid mix of the two.
Last edited by THSdrummer; 03-28-13 at 02:00 PM.
#16
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I've got a Specialized Roubaix road bike. I ride alone most of the time and do a few Triathlons a year. I added Profile Design Jammer GT clip on shorty bars to my bike. They're designed for road bikes with slack seat tube positioning, not TT bikes. The bars are extremely adjustable and let me position the arm pads behind the handle bars. This positioning keeps the weight well centered on the bike. It also lets me maintain the 90 degree leg/torso angle, maintaining power.
Most aerobars, have the arm rests positioned directly over the handle bars. With a road bike geometry, this setup puts the rider way to far forward resulting in two things. First very twitch ride since there is to much weight on the front wheel. Secondly the the leg to torso angle is way to extreme, resulting in a significant decrease in power.
Many people recommend a forward seat post and standard TT aerobars. I think that setup gives you a very compromised setup. Poor road bike performance and a aerobar setup that is very uncomfortable along with a position that can't be maintained for long periods of time. That is unless your as flexible as a yoga instructor.
Most aerobars, have the arm rests positioned directly over the handle bars. With a road bike geometry, this setup puts the rider way to far forward resulting in two things. First very twitch ride since there is to much weight on the front wheel. Secondly the the leg to torso angle is way to extreme, resulting in a significant decrease in power.
Many people recommend a forward seat post and standard TT aerobars. I think that setup gives you a very compromised setup. Poor road bike performance and a aerobar setup that is very uncomfortable along with a position that can't be maintained for long periods of time. That is unless your as flexible as a yoga instructor.
#17
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for the love of all that is sweet and innocent, don't adopt the praying mantis position
#18
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I've got a Specialized Roubaix road bike. I ride alone most of the time and do a few Triathlons a year. I added Profile Design Jammer GT clip on shorty bars to my bike. They're designed for road bikes with slack seat tube positioning, not TT bikes. The bars are extremely adjustable and let me position the arm pads behind the handle bars. This positioning keeps the weight well centered on the bike. It also lets me maintain the 90 degree leg/torso angle, maintaining power.
Most aerobars, have the arm rests positioned directly over the handle bars. With a road bike geometry, this setup puts the rider way to far forward resulting in two things. First very twitch ride since there is to much weight on the front wheel. Secondly the the leg to torso angle is way to extreme, resulting in a significant decrease in power.
Many people recommend a forward seat post and standard TT aerobars. I think that setup gives you a very compromised setup. Poor road bike performance and a aerobar setup that is very uncomfortable along with a position that can't be maintained for long periods of time. That is unless your as flexible as a yoga instructor.
Most aerobars, have the arm rests positioned directly over the handle bars. With a road bike geometry, this setup puts the rider way to far forward resulting in two things. First very twitch ride since there is to much weight on the front wheel. Secondly the the leg to torso angle is way to extreme, resulting in a significant decrease in power.
Many people recommend a forward seat post and standard TT aerobars. I think that setup gives you a very compromised setup. Poor road bike performance and a aerobar setup that is very uncomfortable along with a position that can't be maintained for long periods of time. That is unless your as flexible as a yoga instructor.
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The statement isn't true. The more you flatten out your torso, the less wind it catches, the more aerodynamic you are. For every clip-on aero bar setup I've ever seen, the rider was flatter/lower with the aerobars than in the drops.
Can you setup two bikes where a person is lower in the drops on one than they would be in the aerobars on another? Sure. But so what.
Can you setup two bikes where a person is lower in the drops on one than they would be in the aerobars on another? Sure. But so what.
Needed Watts for Speed = 45 km/h :
Stevens San Remo bike with normal handlebar 465 Watts needed to go 45 km/h
Same bike Hands down the drops: 406 watts needed
Same bikeEaston Aeroforce bar: 369 Watts
Stevens San Remo bike with normal handlebar 465 Watts needed to go 45 km/h
Same bike Hands down the drops: 406 watts needed
Same bikeEaston Aeroforce bar: 369 Watts
#20
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Just getting the arms out of the wind is worth a lot. I've tried it on long even descents in the mountains. At around 40 mph, I'm just a tiny bit faster on clip-ons than deep in the drops with my chin 2" off a slammed stem. I think it's a bigger difference when pedaling. It took me a long time to realize that about descending, because the drops feel faster. YMMV, depending on fit and position.
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#23
The Recumbent Quant
As you are in a more streamlined position with clip-on aerobars than the drops (lower as well as elbows in), you'll be more aerodynamic.
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You've provided no evidence that clip-on aerobars are just like the drops. They only thing you've shown is that "proper" aerobars are better than the drops.
As you are in a more streamlined position with clip-on aerobars than the drops (lower as well as elbows in), you'll be more aerodynamic.
As you are in a more streamlined position with clip-on aerobars than the drops (lower as well as elbows in), you'll be more aerodynamic.
Just picture a profile of someone in the drops. Now imagine that same person in aerobars mounted on top of the bars. Because their seat position has not changed, there's no difference - there's no difference in streamlining.
#25
The Recumbent Quant
On my road bike, my elbows were further forward when I was on the aerobars than I was when I was in the drop. So even though my seat didn't change relative to my stem, I was lower, my center of mass was further forward, and my elbows were in. This is a more aerodynamic position. There is a difference in streamlining. Go find a pair of clip-on aerobars, put them on your bike, and take some pictures (I don't have the road bike anymore).
How much the improved aerodynamic position (compared to the drops) helps the OP depends on the speed at which he's riding. I found riding into a headwind even at low speeds, being on the bars was significantly less effort than being in the drops (not to mention much more comfortable).
Regardless, the OP has said he was looking for comfort. Since we agreed on this point, maybe it's time to let this go...