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A. Standover height
1. Diamond frame bicycles
Standover height is the basic element of bike fit (see ). It
is the distance from the ground to the top of the bicycle’s
frame at that point where your crotch is when straddling
the bike. To check for correct standover height, straddle
the bike while wearing the kind of shoes in which you’ll be
riding, and bounce vigorously on your heels. If your crotch
touches the frame, the bike is too big for you. Don’t even
ride the bike around the block. A bike which you ride only
on paved surfaces and never take off-road should give you
a minimum standover height clearance of two inches (5
cm). A bike that you’ll ride on unpaved surfaces should give
you a minimum of three inches (7.5 cm) of
standover height clearance. And a bike that you’ll use off
road should give you four inches (10 cm) or more of
clearance.
B. Saddle position
Correct saddle adjustment is an important factor in
getting the most performance and comfort from your
bicycle. If the saddle position is not comfortable for you,
see your dealer.
The saddle can be adjusted in three directions:
1. Up and down adjustment. To check for correct saddle
height (fig. 3):
•
sit on the saddle;
•
place one heel on a pedal;
•
rotate the crank until the pedal with your heel on it
is in the down position and the crank arm is
•
parallel to the seat tube.
If your leg is not completely straight, your saddle height
needs to be adjusted. If your hips must rock for the heel
to reach the pedal, the saddle is too high. If your leg is
bent at the knee with your heel on the pedal, the saddle
is too low.
2. Step-through frame bicycles
Standover height does not apply to bicycles with step-through frames. Instead, the limiting
dimension is determined by saddle height range. You must be able to adjust your saddle
position as described in B without exceeding the limits set by the height of the top of the seat
tube and the ”Minimum Insertion” or “Maximum Extension” mark on the seat post.
fig.3
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