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Adjusting your new bike
13
HP
Velotechnik
Adjusting the handlebars
As standard equipment the Street Machine GT
comes with under seat steering.The position
of the handlebars is under the legs.
Alternatively, we offer above seat steering
where the handlebars are above the legs.
The handlebars are connected with the front
fork through a stem.There are different stems
for under seat steering in use:
a) a vertically adjustable stem that is inserted
in the steerer tube
b) a stem that is clamped onto the steerer
tube and at the same time fixes the
steering head bearing (so called "A head
stem")
Starting at the fork, both stems have to point
backwards to the seat.
a) Adjusting the stem - vertically adjustable
stem
Remove the rubber plug and undo the hex-he-
aded screw that lies below. If the stem still
doesn't move then you can undo the clamping
in the stem shaft with a gentle punch on the
Allen key.
Mount your bicycle, fix the front wheel with
your feet and align the stem parallel to the
front wheel.
At the same time insert the stem so far in the
steerer tube that the handlebars move freely
under the seat even when the seat is in its
most upright position.The minimum distance
between seat and handlebars is 5 mm.Take ca-
re that the minimum distance between the
handlebar clamping at the stem and the frame
of your bike is 5 mm.
Adjusting the handlebars
Tighten the screw with 14-16 Nm. Check the
clamping by trying to turn the stem against the
front wheel. Remount the rubber cap.
b)Adjusting the stem - A head stem
The A head stem is clamped onto the steerer
tube with two screws.At the same time it fi-
xes the steering head bearing.
Adjusting the stem
In case you only want to adjust the already
mounted stem parallel to the front wheel you
don't have to undo the screw on the cap.
Mount your bicycle, fix the front wheel with
your feet and align the stem parallel to the
front wheel.
Then tighten both clamping screws alternately
with 8-10 Nm. Check the clamping by trying
to turn the stem against the front wheel.
Check the play of the steering head bearing,
see below.
Danger! Adjusting the stem also requires
some work at the steering head bearing. In
case of assembly errors the danger of acci-
dents is increased. If you are in doubt have
your bicycle mechanic adjust the stem.
Danger! The hex-headed screw in the cap
adjusts the play of the steering head bearing.
This screw does not help to clamp the stem
tightly to the steerer tube. It does not secu-
re it against turning.Take care that both
clamping screws on the side are tightened as
prescribed after you have finished your
works at the stem. Otherwise the stem may
turn while riding and cause an accident.