38
Forks and Headset
The threaded headset
will not stay in adjust-
ment
Make sure that there is a notched washer between the top and botom locknuts
of the headset. check that this washer cannot turn freely on the forks steerer
tube. Remove the stem and check that there is a small space between the top
of the fork steerer tube and the bottom of the top nut.
The no thread headset
keeps loosening
Remove the headset cap and stem. Check the two sections of the upper clamp
for stripped threads, and look to see how deep the starnut is in the forks steerer
tube. If it is within a centimetre (1/3 of an inch) of the top of the tube, get a
screwdriver and a hammer and knock it down around 1.5 cm (1/2 and inch).
A clunking noise comes
from the headset when i
brake or hit an obstacle
You headest may be loose. Loosen the stem and tighten the bolt in the headset
cap. If this does not help, knock the starnut deeper as described above. If the
play only occurs in a certain range of steering angles, check that the headset is
xed properly in the frame
Miscellaneous
The seat creaks, wob-
bles or moves
Remove the seat cushion and check that all bolts are tight. Next check that all
bolts holding the seat frames to the frame are tightened. Do not overtighten the
bolts on the seat as this will over stress it and lead to long term damage.
The tiller stem swings
forward and backward
too easily
Try tightening the bolt at the base of the tiller arm. If this makes no difference,
The shims on your stem may be worn out. Contact your optima dealer for new
shims.
The chain protection
tubes have come loose
or have worn out
All tubes are fastened to the brackets using zip ties, and are easily reattached. If
the tubes have worn out, please contact optima and order new tubes. Have the
mesuerments of the old tubes handy to get the right lengths.
I own an trike and
it doesnt hadle well,
is unpredicatbel in cor-
ners and rolls badly
Your wheels are most likley out of allignemtn. Refer to pages 10 and 11 of this
manual.
Theres a cracking
noise coming from the
frame
Is the seat propely fastened to the frame and its brackets? Check the rear
suspension bushing, it may be too tight or need lubrication (grease). Otherwise
your headset may be causing the problem.
39
Optima bicycle models
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