Dynacraft BMX Owner's Manual page 29

BICYCLE ADJUSTMENTS
STEM ADJUSTMENT
To raise or lower your stem, use an adjustable wrench or
Allen wrench on the stem bolt to loosen the stem. (See
SEAT ADJUSTMENT
Figure 1.) Do not remove this bolt completely, as the stem
wedge may fall inside your frame. Make sure the stem is
You can adjust the up and down tilt of
inserted enough so that the minimum insertion marks on
your seat as well as the forward and
your stem are completely covered. (See Figure 2.)
back position by loosening the seat
post hardware at the bottom of your
WARNING:
To prevent steering system damage and
seat. (See Figure 1.) Be careful not to
possible loss of control, the stem must be inserted enough so that
loosen them all the way so that the
the minimum insertion marks are completely covered.
nut comes off on either side. Loosen
enough to make the adjustments, and
WARNING:
re-tighten the nuts.
Do not over tighten the stem bolt. Over
tightening the stem bolt can damage the steering system and cause
To raise or lower your seat, use the
a loss of control. If necessary re-adjust the handlebar and tighten
quick release lever (see Figure 2) or an
the handlebar clamp nut.
Allen wrench on the seat clamp- (see
Figure 3) depending on the style of
clamp your bike comes with. Make
WARNING:
Threadless stem systems should not be
sure the minimum insertion marks on
adjusted or loosened by anyone other than an experienced bicycle
the seatpost are completely covered.
shop mechanic.
(See Figure 4.) Close the quick release
lever, or tighten the Allen nut on your
For threadless stem systems, the stem cannot be raised or
seat clamp until it is secure, and the
lowered without removing components and re-adjusting.
seat will not move or sink with the rider
This should not be attempted, but should be taken to a
seated.
bicycle shop for any adjustment. (See Figure 3.)
WARNING
The seatpost
must be inserted far enough so that
the minimum insertion marks cannot
be seen.
1
Minimum
insertion
mark
2
Threadless
3 stem system
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