39
40
5 The functions of the most important
components
5�1 Stability – the frame
The woom OFF frame is made of lightweight, high-quality aluminium tubes. As such it offers
the necessary stability with minimum weight.
5�2 Shock absorption – the fork
The carbon fork (woom OFF) or the air suspension fork (woom OFF AIR) provides the neces-
sary shock absorption. Information on how to adjust the air suspension fork correctly can
be found in Section 6.4 on page 48.
5�3 Steering – the handlebar
The position and shape of the handlebar help ensure a correct sitting posture. In addition
to the grips, the handlebar also accommodates other components (brake lever, shifter, bell,
reflector, etc.).
5�4 Shock absorption and grip – the tyres
The tyres must carry the weight of the wheel, the person cycling and any luggage. The heavier
the weight, the higher the air pressure should be. The permissible pressure range is indicated
on the tyres. See also Section 9.1 on page 52.
5�5 Stopping in time – the brakes
The woom OFF has two hydraulic disc brakes, one on the front wheel and one on the rear
wheel. When braking, the brake pads are pressed against the brake discs attached to the hub
and the wheel is braked in this way. See also Section 7.1 on page 50.
5�6 Drive – the 9-speed gear
The cranks connect the pedals with the bottom bracket. The chainring connected to the right
crank transmits the driving force via the chain to the rear wheel. There are nine sprockets of
different sizes mounted on the rear wheel (together referred to as cassette). The rear derail-
leur is also located there. The woom OFF rear derailleur type SRAM X5 guides or shifts the
chain over the differently sized sprockets. This results in different power transmission ratios.
High transmission ratios are achieved when the chain lies on a small rear sprocket. Pedalling
is more difficult, but the bike travels further with one turn.
Lower transmission ratios are achieved when the chain lies on a large rear sprocket. Pedalling
is easier, but the bike travels a shorter distance with one turn.
6 Getting the woom OFF ready
Please note: The designations left and right in these instructions always refer to the left or
right side of the bike as seen from above and in the direction of travel.
6�1 Unpacking
1. Remove packaging, carefully cut through cable ties.
CAUTION
When cutting the cable ties, make sure that you do not damage the bike parts, es-
pecially the tyres.
2. Remove the plastic protective disc from the rear derailleur.
3. You should write down the woom OFF frame number. This number uniquely identi-
fies the bike and is important in the event of theft and insurance matters. The num-
ber can be found at the bottom of the frame (see arrow). You can also write down
the frame number on your warranty card – see cover sheet of this book.