InDepth Road bikes – from triathlon bikes
I always wondered what the main differences between bikes road and triathlon bikes. The obvious difference is that it runs a triathlon in an aerodynamic position, but we sometimes see in bars bike off road then What is the real difference? There is little difference between the UCI legal bike time trial and triathlon bikes, but they are equal. The short answer is, road bikes are designed to have three hand positions, triathlon bikes are designed to have one. The fact that a motorcycle clip road in aerobars, that does not mean that it is a triathlon bike built for this purpose.
Draft laws are the only triathlon area where a road bike with aerobars Portal is little used, but positionally speaking, they call me road bikes. They are designed to to make everything a race bike and is, in fact, cyclists use the aero position of a draft legal triathlon any time.
UCI time trial bikes are legal depositions are recessed beyond triathlon bikes. The bike is configured so that the rider must really down at the tip of the chair (on the rivet, as they say) to get the balance inherent in their effort during production. The more you pedal, the most important movements equilibrium. Like a roller running in a maximal effort, the most efficient position is in front of the house in the saddle, riders just suffer. They do not have be comfortable and manifestations are rarely more than an hour for what?
Triathlon bikes are designed to be mounted on long distances and at submaximal intensity. This means that the pilot puts more weight on the saddle and handlebars, because the pedals do not hit enough to meet your needs. As such, the seat and handlebars are in the position the bridge is the more efficient or streamlined. The reason to distinguish between the two positions is the triathlon very traditional forward to accommodate triathlete needs more hip angle and allow a super aerodynamic position.
My problem with this position is twofold. First, position is not strong and many triathletes cede more power than is produced by pure aerodynamics. Secondly, in a before the other is positioned relative to its equilibrium point, the load is more in the knees and quadriceps excess compensation occur. This muscle imbalance is paid transition and the beginning of the race.
The position is perfect triathlon in which the driver is also strong and streamlined as possible, with sufficient certainty to be able to stay in the aerobars the entire event. This is big. If you must sit in a race to rest because the aero position is not sustainable, you have a problem. You will be slower and more tired the day before. Remember, however, the aerodynamic advantages of power to a point, so their best can not be the one you think is!
Since the position on the bike and the bike settings in support of this position are the two differences between the definition a bicycle road bike and triathlon one, what about all the flight tube in some frames and round tubes on the other? Some chassis manufacturers announce speed their frames are based on wind tunnel tests, but I think it's a bunch of marketing hype for the most part. Here an essential fact: The share of the test or triathlon bike that creates the most resistance is the pilot! The property lies within the boundary layer and, as such, is not a major contribution aerodynamics might think.
The concept of boundary layer is a difficult question, so I imagine the air right next to you is the speed at which and at some point your body (and bike) of air is affected. There is a "layer" of air that the transitions of the lack of disturbance of reality is its speed, because the layer of air molecules that touch your way to the skin. Things between the two is the boundary layer. "In my career in industrial design, design a memory piece that was on a Boeing 777, and I remember learning of the boundary layer was 13 mm thick at the site in question. This means that 2 "from the fuselage, almost does not really affect aerodynamics!
What does all this, a road bike with a tube still Aero is not the speed of a triathlon bike round tube, assuming that the driver has a good position! What this also means the aerobars, a fork and front wheel has a great impact on aerodynamics, since they are outside the boundary layer. Some finishes Ironman happen very quickly with people riding bikes around the tube but you Triathlon can bet that they are correctly positioned and have good wheels, handlebars and front fork.
At day's end, there is much good triathlon bike. First, the position is more critical. Second, the large wheels are important. Third, have a good set of aerobars have integrated handles the end of the aerobars is important. After hydration. Of cylinders or bottles off the bar / hydration systems are much better than those behind of the chair. You have to move up and down the seat-mounted cylinder, so that an area that could be successful.
Triathletes are responsible of all aspects of the three disciplines in the sport. The bike is so critical, but if neglected, it is not surprising that much of the misinformation travels through the area transition. When you are sitting at the fountain after a race, and someone said that "brand X" has won 10 Ironman bike, you know, the box the bike has not won the race. The athlete has done, he had the fastest time in the three legs! I hope this is good food for thought and I am happy to answer aa follow regarding the outcome of this reading.
About the Author
KGS Bikes is known around the world as the premiere bicycle fitting studio and boutique. For over 25 years, Kevin Saunders, President, has studied bicycle fitting and sold high end bicycles. KGS Bikes sells bicycles from Zinn, Parlee, Serotta, Co-Motion and Guru, in addition to fitting services. Visit the KGS Bikes website, http://kgsbikes.com and our blog, http://blog.kgsbikes.com for more information.
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