Bedienungsanleitung Bulls Ebikes - BOSCH LED Remote 2022 (Seite 84 von 276) (Englisch)

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MY22B0a - 52_1.0_16.09.2021 83

Operation

Position on roadster Position on city bike Position on trekking

bike

Position on sports

bike

Angle of upper body

(black dashed line)

Upright, almost vertical

posture,

back at an angle of

almost 90°.

Handlebars and handles

are very close to the

upper body.

Slightly inclined upper

body,

back at an angle of 60°–

70°.

Considerably inclined

upper body,

back at an angle of 30°–

60°.

Greater distance between

handlebars and saddle.

Sharply inclined upper

body,

back at an angle of 15°–

30°.

Saddle higher than the

handlebars.

Angle between upper

arm & upper body

(red line)

Extremely acute angle at

around 20°.

The upper arms are

almost parallel to the

upper body.

The hands are simply

placed loosely on the

handlebars.

An angle of 75°–80° is

optimum.

Many people prefer a

smaller angle of up to 60°

as it requires to less effort

to support the shoulders,

arms and hands.

An angle of 90° is

optimum.

The muscular support

required in the arms, back

and shoulder girdle is

reduced at 90°.

Above 90°

Shoulders, arms and

hands need to provide a

great deal of support, the

supporting muscles in the

back are heavily strained

and the load on the

bearing surface shifts to

the front.

Saddle-handlebar

height difference

(blue and green line)

>10

The handlebars are posi-

tioned far higher than the

saddle.

10…5

The handlebars are posi-

tioned higher than the

saddle.

5…0

Handlebars and saddle

are almost at the same

height.

The saddle is positioned

far higher than the

handlebars.

Benefits

The spine is intuitively

moved into its natural S-

shape.

The strain on arms and

hands is very slight – no

effort required to support.

The upright position

provides a good over-

view in traffic.

Force can be applied to

the pedals when pedalling

without using much

energy.

Shoulders, neck and

hands provide more of

the support effort, thus

promoting a dynamic,

agile riding style. Impact

is reduced on the back,

spine and buttocks, which

is particularly important

on longer rides. The

whole body can apply

force to the pedals effec-

tively.

Optimum power transmis-

sion.

Aerodynamic: low air

resistance.

Disadvantages

Force is applied relatively

inefficiently to the pedals.

Weight rests exclusively

on the buttocks.

The spine slumps after a

short time for many

people (pelvic straight-

ening).

The arms are often

stretched through to the

high handlebars – this

leads to tense shoulders

and painful hands.

The spine tends to slump

quickly due to the “high

position”.

There is greater strain on

the hands, neck and

shoulders. The muscular

system needs to be

trained for this higher

strain, i.e. riders should

practise.

Requires highly trained

muscles in back, legs,

shoulders, abdomen!

Comfortable position only

for people who are fit.

Fitness level and use

Low fitness level, occa-

sional cyclists Medium fitness level, city

cyclists Medium to high fitness

level, riding long

distances

Speed-oriented, sports

cycling

Suitable pedelec types City bike

Folding bike City bike

Cargo bike Trekking bike Mountain bike

Racing bicycle

Table 30: Overview of sitting positions

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