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7
Bar
– pressure unit, 1 bar = 100 000 Pa
Psi
– American pressure unit, 1 psi = 0.06897 bar
N m
– unit of torque
Chainring
– the biggest chainring has the most teeth, the smallest has the least
Sprocket-wheel
– the biggest sprocket-wheel has the most teeth, the smallest has the least
Freewheel
– a system of several chain wheels
Cassette
– part of the hub that holds the freewheel
SAFETY INSTRUCTIONS
The rider should be able to keep balance on the bike and control the speed and direction with the
provided braking system.
The size of the bike must
complement the rider’s stature. We recommend to choose the bike size
according to the picture below. Standing astride the assembled bike, the rider’s groin should not touch
the top tube.
Tarmac surface
Uneven surface
Rough surface
If you intend to use the bike on tarmac surfaces, the distance between the frame and your groin should
be 4
– 5 cm. If you plan on riding on uneven terrain, the distance should be 7 cm. The optimal distance
for riding on a rough terrain is 10 cm. Consult the bike size with the seller.
Do not forget that every road and pavement can have uneven parts, that can endanger the rider or
damage the bike.
CHOOSING THE BIKE SIZE ACCORDING TO THE CHILD
’S AGE AND HEIGHT
Wheel diameter
Child’s age
Child’s height (cm)
12"
2
– 4
90
– 110
14"
3
– 5
95
– 115
16"
4
– 7
100
– 125
20"
5
– 9
105
– 135
24"
8
– 12
115
– 155
26"
9+
130+
While riding on public roads, make sure your bike is equipped with all the required components (brake
system, reflectors, lights, bell, etc.). It is recommended to familiarize yourself with local legislation and
consult the seller, if necessary.