User manual

FOLDING BIKE
23
ImPOrTanT nOTes
Gears
(FOr mUlTI sPeed mOdels)
INTERNAL GEAR HUBS
Bigfish folding bikes use internal gears.
With internally geared bicycles, it is
recommended to refrain from pedalling
while you shift gears. However you can
change gears while stationary or rolling.
The shifter indicates a series of numbers
from 1 up. “1” is the lowest gear (used for
slower riding, hill climbing, or to allow for
easier pedaling). Shift up and down the
gears using the upper side of the grip.
ADJUST GEARS
During normal use it can happen that the
precision of the shifting deteriorates. You
can adjust the gears by centering the
yellow mark (1) between two adjacent
vertical lines.
First, put the revoshifter into 2nd gear. If
the yellow mark is not between the vertical
lines, do the following: Loosen the screw
(2) using wrench 10 and manually adjust
using the hand screw at (3). Finally, turn
the screw clockwise to the point that the
yellow mark is again optimally positioned
between both vertical lines.
AUTOMATIC INTERNAL
GEAR HUBS
Your Bigfish folding bike might use
automatic internal gear hub. In this case,
the gear adjustment is not needed.
CHaIn
The chain should be set tight enough so
that it does not come off during use. The
chain tensioner keeps the chain under
tension during the folding process.
ADJUST CHAIN
(FOR SINGLE SPEED & INNER GEAR MODELS)
Turn the bike upside down. As a rule of
thumb there should be about 12 mm
(1/2’’) movement of the chain up and
down at point halway between the front
and rear sprockets. Push the chain
downward and then pull it upward in the
middle. Note the travel.
If the travel is not about 12 mm (1/2’’)
adjust the chain: loosen the rear axle nuts
and move the wheel forward to loosen, or
backward to tighten, in the frame. After
setting chain tension, pedal the bike and
check for any tight and loose positions as
the crank arms turn.
If necessary, readjust so there is only 6
mm (1/4’’) movement at the tightest point.
Finally, tighten the rear axle nuts.
Make sure that the chain is positioned
right, so that the chain tensioner and
chain guide keep the chain under tension
during the folding process.
SET
SET
SET
SET
SET
SET
1
2
3
- gear adjustment -