EPIC TRAINING SYSTEMS
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Bike Fittings
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| On this page you will find before and after pictures of clients who have used our professional bike fitting services. |
| On this fit the athlete had a pretty good position but he was a little stretched out. We made adjustments on his aero bars, lowered stem, and raised his saddle height. Notice his body position is more forward on the bike. Notice how is shoulder, upper arm, head tube and fork make one flowing line. He is able to support his weight on his bone structure instead of using his muscles to hold his body up. Recommendation-- stem with drop will lower his position even lower and make him more aerodynamic. The road bike to tri-bike conversion is half done partly because to make all the changes necessary in one fitting would be too drastic on the athlete. |
| 1. The head tube on this Cannondale Multisport 700 was too tall. 2. The seat tube was too tall and the seatpost could not be dropped any lower. |
| At Epic Training Systems we strongly recommend if you are going to be doing triathlons exclusively then you should buy and be fitted properly to a triathlon specific bicycle. Question: What is the difference between a road bike and a tri-bike you ask? Answer: Here are the most important differences. 1. Seat tube angle-- on a road bike the seat tube angle is typically 73.5 degrees while on a tri bike they are usually 76-78 degrees. Designed to open up the hip angle while pedaling. 2. Tube Tube length- Top tubes on tri-bikes are shorter on a tri-bike. 3. Head Tubes- Head tubes are shorter on tri-bikes to allow the rider to achieve a lower aerodynamic positon. 4. Front Center- Because the body position is shifted forward and down on the front portion of the bike, weight distribution has changed, hence the dimension from the front axle to the center of the bottom bracket needs to be extended. Question: And is the final outcome to all these changes in geometry? Answer: Your pedaling becomes more quad dominant and you hamstrings and gluetemus are fresher for the bike-run transition. |
| This athlete bought a used bike which was too big for him. I couldn't drop the seat as low as it should be and I could not get the cockpit any lower because the head tube was too tall. A stem change was performed and spacers removed but the position could not be shortened because the Syntace aero bars were unadjustable. Notice the upright position of the athlete not aerodynamic whatsoever. This position is more upright than a road bike position. Also saddle height is too high. Athlete's power to the pedals is reduced ultimately affecting his performance. Recommendations-- 1. Use caution when buying a used bike or you will end up with an ill-fitting bike that can not be adjusted to fit you. 2. Buy adjustable aero-bars if you are a beginner. 3. If you have a short inseam you need a smaller bike so the head tube will be short enough to allow for an aerodynamic position. 4. Buy another stem that has more drop like a 115 degree to counteract the tall head tube on this Cannondale. |
| Road bike to Tri-bike conversion 1. Changed stem from 105mm to 80 mm x 90 degree. 2. Removed stack height spacers 3. Shortened aero-bar extensions 4. Removed spacers from armrests 5. Leveled aero-bar extensions Recommendations-- 1. Smaller bike if using specifically for triathlons. 2. Once accustomed to this stem buy a shorter stem with more of a rise/drop to achieve a lower aerodynamic postion. |
| 1. Road bike to tri-bike conversion once again prevents me from getting the athlete in a more aerodynamic position because the head tube on the road bike is too tall for triathlon applications. 2. The stem was lowered. 3. Spacers removed on armrests. 4. Shortened aero-bar extentions Recommendations-- 1. Forward seatpost- to counter the slack seat angle of this road frame 2. A shorter stem with a rise/drop so that a better aerodynamic position can be achieved. |
| 1. Changed 100mm stem to a 80mm x 115 degree stem to lower athlete's position. 2. Shortened aero-bar extensions 3. Moved arm rests back to 2 cm Notice the perfect alignment of shoulder, upper arm, head tube and fork. Notice rounded back and straight more natural wrist position. Recommendations- 1. Move saddle forward. This was not done at the fitting because the athlete was changing the saddle and did not have it with them. 2. Get a tri-bike- athlete is doing Ironman distance triathlons. A lot of energy could be saved in a 112 mile bike leg if you are more aerodynamic and comfortable enough to stay in your position. |