Whether you're a newbie or seasoned biker, making an appointment with an experienced bike fitter is the easiest and best way to get the correct fit and position. Collester and all the Spin Doctors at Performance Bicycle use the following steps to fit bikers.
Consider your biking goals and let a bike expert help you choose the right type of bike and the right size bike.
With hips parallel to the ground and the ball of the foot over the center of the pedal spindle, and the cranks in line with the seat tube: Raise or lower the saddle until the down leg has a slight break at the knee (160 degrees to 170 degrees). Pedaling in this position should not cause the hips to dip or rock.
While most men like the saddle flat or angled slightly up (+ or - 5 degrees), Collester says most women like the nose slightly down (+ or – 5 degrees).
With the cranks parallel to the ground and the balls of the feet over the center of the pedals, drop a plumb bob from the bottom of the knee cap of the lead knee. The line should bisect the center of the pedal. Too far forward, slide the saddle back on the rails; too far back, move it forward.
Have the rider perch on the saddle with her hands on the brake hoods. Her elbows should be slightly bent. Now have her rotate her hips forward while straightening her back. In this position the handlebars should obscure the hub. If the hub is ahead, a longer stem is called for; if it is behind, then a shorter stem. With the correct stem the rider's back should be around 45 degrees to horizontal. Leisure bikers usually prefer to be 45 degrees or more upright while racers often like a flatter position of less than 45 degrees.
Collester stresses that the final position should be based on:
2. Rider flexibility
3. Rider aspirations
You can see an abbreviated version on the Performance website >>
Collester adds, "With the bike fit tips above, any rider can get in the ballpark. But if you aspire to the highest performance or you have a aches, pains or discomfort that you just can't adjust away, see a pro."
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