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by Jim Langley
Philosopher Ivan Illich, in his essay Energy and Equity, wrote: Man on a bicycle can go three or four times faster than the pedestrian, but uses five times less energy in the process. He carries one gram of his weight over a kilometer of flat road at an expense of only 0.15 calories. The bicycle is the perfect transducer to match man’s metabolic energy to the impedance of locomotion. Equipped with this tool, man outstrips the efficiency of not only all machines but all other animals as well. That’s pretty remarkable. Yet, what Ivan doesn’t mention is that if this most-efficient machine isn’t properly adjusted, you could suffer serious discomfort such as a numb bum, burning feet, stabbing knee or back pain, sore hands, achy shoulders and a stiff neck. Yikes! And with
these afflictions, instead of zipping down roads and trails effortlessly
(like the great Jeannie Longo-Ciprelli in the photo), you may well wobble
along like a top-heavy wheelbarrow. |
|
Symptom |
Likely
cause |
Solution |
Youre
always having to scoot backwards on the seat |
Stem
is too long so you pull yourself forward when you’re riding without
realizing it; saddle nose may be tipped down too much |
Install
a shorter stem; level the saddle |
Youre
always having to scoot forward on the seat |
Stem
is too short so you feel cramped and push yourself back when you’re
riding without realizing it; saddle nose may be tipped back or the seat
may not be far enough back on the rails |
Install
a longer stem; level the seat and center it on the rails |
Lower
back hurts |
Stem
too low or too long; must strain back to reach bars; or seat may be too
high causing rocking when pedaling |
Try
raising the stem/handlebars; still hurts?; try shorter stem; check and
adjust seat height |
Neck
hurts |
Stem
too low; must crane neck to see |
Raise
the stem/bars |
Hands
hurt |
Stem
too low; too much weight on hands |
Raise
the stem/bars |
Front
of knee hurts |
Seat
too low, straining knees |
Raise
the seat |
Back
of knee hurts |
Seat
too high, overextending legs |
Lower
the seat |
Numb
bum all the time |
Too
much weight on the seat |
Try
a lower handlebar position; check seat height as it may be too high |
Suffer
"hot foot" on rides (painful burning sensation) |
Shoes
too tight, or cleats too far forward on your shoes |
Loosen
shoe straps or buy better fitting cycling shoes; move
cleats back on your shoes |
Achilles
tendon hurts |
Pedaling
too much on your toes; cleats too far forward on your shoes |
Keep
the balls of your feet over the pedals when youre riding; move cleats
back |