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View Poll Results: What is most efficient?
Fixed Gear?
34.15%
Single Speed?
0
0%
Geared?
65.85%
Voters: 41. You may not vote on this poll

What is most efficient?

Old 09-12-08, 09:31 PM
  #1  
Trekbikedude
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What is most efficient?

I am confused. What road bike is most efficient?

Fixed Gear, Single Speed, Or A geared road bike (20) Speeds?
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Old 09-12-08, 09:45 PM
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Depends on the application, but with general flat riding, and tt's a fixed gear would have it's advantages, each other it's general opinion.
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Old 09-12-08, 09:47 PM
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From an engineering point of view, fixed gear is most efficient. From a physiology point of view, geared is most efficient.

Single speed w/a freewheel is worthless and poser in anything but mountain bikes.
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Old 09-12-08, 09:47 PM
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ken cummings
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Most efficient for what? A case could be made for all of them.
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Old 09-12-08, 10:30 PM
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i voted for fixed gear because my bikes are fixed. one came fixed, one was converted.
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Old 09-13-08, 12:48 AM
  #6  
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Flatland - fixed gear. The hour record will always be done on a track bike.
Factor in hills and headwinds and gears become more efficient.

JPradun nailed it on the head pretty well though.
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Old 09-13-08, 12:57 AM
  #7  
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Most efficient? Gears with a very low LOW, and very high HIGH. And many points between. You don't HAVE to use them - but they are there if you do.
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Old 09-13-08, 07:24 AM
  #8  
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Originally Posted by andre nickatina View Post
Flatland - fixed gear. The hour record will always be done on a track bike.
It's not a matter of efficiency. The UCI rules require a fixed gear bike for hour record attempts.

As several posters have noted it depends on what type of efficiency you are talking about.

For pure mechanical efficiency, the fixed gear (or single speed while the freewheel is locked up during pedaling) is the most efficient. The chainline is perfect and there are no parasitic losses from derailleur pulleys, chain angularity, etc.

For physiological efficiency, the ability to change gears to maintain the riders preferred pedaling cadence is much more efficient in anything but the flattest terrain.

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Old 09-13-08, 08:23 AM
  #9  
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In the real world multi-geared bikes are the most efficient for travelling road or off road.

Single speed bikes are quite efficient also, but fixed gear bikes are completely pointless IMO. They may look simple and elegant, and have a certain 'cool factor', but they're dangerous and too easy to lose control of. So whatever benefit you get from cycling, riding a fixed gear will kill it!
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Old 09-13-08, 11:39 AM
  #10  
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Originally Posted by Wino Ryder View Post
but they're dangerous and too easy to lose control of. So whatever benefit you get from cycling, riding a fixed gear will kill it!
Sarcasm possibly?

This sounds like more of a problem with riding skills than anything else. Fixed gears are just as easily controlled as freewheel bikes after you get properly acquanted with them. It's been a very long standing tradition for the pros to ride fixed in the winter for fitness and pedal stroke efficiency. Riding a fixed gear well absolutely makes you better on a road bike, unless you are the type of cyclist who lets the drivetrain push you through the 'dead spots' in your pedaling without addressing them (loosening the chain can help fix that bad habit as you feel directly every dead spot if you don't keep up with the stroke, and it's not a good feeling at all!).
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Old 09-13-08, 02:01 PM
  #11  
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The question was about "road" bikes. Roads have hills, winds, stop signs, and buttplug drivers.

That said, I'm curious enough about fixed gear to give it a shot sometime. It's a really unusual sensation and I'd like to try it for a while. I hear it will give me awesome legs, too. But that's because it's inefficient.
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Old 09-14-08, 12:33 AM
  #12  
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Originally Posted by JPradun View Post
Single speed w/a freewheel is worthless and poser in anything but mountain bikes.
Right...So all SS city bikes are worthless and poser? Seriously?

I guess this bike would have been much less "poser" as a fixed gear, or maybe with a 10 speed rear.
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Old 09-14-08, 12:38 AM
  #13  
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In the real world geared.
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Old 09-14-08, 01:24 AM
  #14  
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You left out internally geared hubs. Just sayin'

As has been pointed out already, Fixed gear are the most mechanically efficient bikes. Geared bikes are the most physiology efficient. That is to say, the loss of mechanical efficiency from a fixed gear bike is negligible when compared to a geared bike, but the ability to maintain proper cadence makes for a more efficient use of energy being put into the bike.
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Old 09-14-08, 09:07 AM
  #15  
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Originally Posted by Wino Ryder View Post
Single speed bikes are quite efficient also, but fixed gear bikes are completely pointless IMO. They may look simple and elegant, and have a certain 'cool factor', but they're dangerous and too easy to lose control of. So whatever benefit you get from cycling, riding a fixed gear will kill it!
Complete, utter nonsense. A bicycle with a fixed gear is no more dangerous than a geared bike, with every bit of the same benefits gained from riding any other bike.
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Old 09-14-08, 09:48 AM
  #16  
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Originally Posted by Moose View Post
Complete, utter nonsense. A bicycle with a fixed gear is no more dangerous than a geared bike, with every bit of the same benefits gained from riding any other bike.
Fixed gear means the pedals never stop turning so it's easy to hit the pedal in a turn...thus it IS more dangerous.

Regarding efficiency, I think a single speed would hold a huge advantage over fixed since you can coast down hills.
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