Finding the Right Fit

Does your bike fit you? Chances are if you can move the seat post up or down until your feet reach the pedals, your answer is yes. But have you ever actually gotten a bike fit to you? Bike fittings can be pricey, but they can save you a lot of pain throughout the season. A few telltale signs that you might need a bike fitting are: a sore lower back, tight shoulders, numbness in feet or hands while biking, and knee pain. Bike fittings range from the basic, where a trained professional will hold a string with a weight up to your hip in order to make sure that the positioning is correct, to the extremely advanced which utilize cameras and computers.

I was lucky enough to get a glimpse of this fancier type of fitting a few weeks ago at the Multisport Expo. Wheelworks, the bike shop that sponsors my triathon team, was demo-ing the Retul bike fitting. According to the website, "Retül technology is a cycling-specific motion-capture bike fitting system designed to provide qualified bike fitters highly accurate and comprehensive bike fit data. The system incorporates three-dimensional measurement, immediate report capability, and a millimeter-specific digitizing tool to provide the most accurate dynamic fitting solution in the industry."

My experience was fun; the trained Wheelworks employee first stuck little velcro dots on some specific points on my body (shoulder, elbow, wrist, hip, knee, ankle, etc), then velcroed the LED markers onto those dots (markers were connected to each other and attached to a battery pack). A few feet away was a sensor bar. The fitter could then look at his laptop and gather all sorts of data about my fit as I pedaled. I got to see an image of myself as a stick figure, with each LED marker showing up on the screen and little lines connecting those dots. I also saw an image of my knee strokes; the further apart the two lines, which represent your leg pushing down and pulling up, the worse your form. My lines were very close together which indicated that I don't change position much from the upstroke to the downstroke.

It turns out my fit is pretty good already (not a big surprise since I don't have much pain when I ride) so I didn't need too much tweaking. He did suggest a shorter handle bar in order to get a better angle when I'm riding with my hands near the brakes (as in the picture, above). He also suggested that I buy a foam roller since it hurt a lot when he pushed into my hip trying to find the specific area of my hip he needed to place the velcro.

Spring is a great time to get a tune up and fit before beginning to log serious miles on your bike. If you'd like a retul fit and you're in the Boston area I highly suggest Wheelworks. The retul website has a function where you can search for certified fitters in your area. Or, if you're thinking of something a little less fancy, call your local bike shop and ask if they have any fit specials going on. Your body will thank you!