HP Velotechnik trikes - Manual (Page 30)

Adjusting to your size
26
For riders with short leg length the front
boom has to be cut by a bicycle mechanic, so
it can be inserted maximum possible. It is im-
portant to trim the end of the tube neatly.
The bare metal of the shortened tube end has
to be protected against corrosion with a paint
stick or wax spray.
The maximum insertion of the front boom is
limited by possible heel cycle of the frame’s
cross bar, depending on the rider’s shoe size.
Please check before riding your tricycle that
there is enough heel clearance. For shorter
riders under 175 cm body height we recom-
mend to use shorter cranks.
On the left underside of the front boom there
is a fine line. Align this line with the sticker on
the main tube’s front end right above the
clamping bolts to adjust the bottom bracket
axle to a horizontal position. Additionally, you
can look beyond the bottom bracket shell at
the rear wheel axle and align the front boom
parallel to it. Align your eyes with the bottom
bracket axle and not the front derailleur tube.
Then sit down on your tricycle and check the
position.
Caution! The minimum insertion
depth of the front boom into the main
frame is 8 cm (3 1/5"). The end of the front
boom must not be visible in the clamping
slot when you look at the main frame from
below, since this may result in a damage of
the frame.
The rear end of the front boon must never be visible in
the clamping slot.
Tighten the bolts with a torque wrench
(tightening torque 14–16 Nm). On your first
ride check whether there is sufficient clamp-
ing.
The plastic bush between front boom and
main frame must be visible at all time.