MY23I0a - 42_1.0_29.08.2023
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Troubleshooting, fault clearance and repair
9.1.4
Pain in shoulders and nape of neck
The weight of the upper body places a strain on
the shoulders due to the bent-forward posture.
The more stretched the position is, the more strain
there is on the shoulders.
The specific posture adopted is often the source
of pain. Pedelec riders often extend their arms.
Impacts such as those occurring on bumpy roads
are thus transmitted to the shoulders without
suspension. This causes severe pain.
Another source of pain is a hunchback. Due to the
posture adopted, the neck needs to be extended
backwards excessively so that the rider can look
forwards. This causes strain in the neck and
shoulder muscles.
9.1.5
Numb or aching hands
Your hands are one of the three points of contact
when you ride a pedelec. The hands transmit the
weight of the upper body to the handlebars. In the
upright Holland position, there is almost no weight
applied whereas body weight is at its highest in
the sports position. The force is applied to a small
area on the handle, meaning the pressure load on
the hands is very high. Hands are highly sensitive
and can bear a maximum of 20% of body weight
during prolonged exposure to load.
9.1.6
Pain in upper thigh
Pain in the upper thigh is usually due to muscular
problems. A muscular imbalance between the
extensors, flexors and adductors can cause this
pain.
Solution
• A more upright riding position will
immediately reduce pain.
• Always bend elbows slightly.
The elbow joint will not block. The arms
cushion impacts.
• Adjust the handlebars (see Section 6.5.5).
• Always adopt an optimal riding position
(see Section 6.5.3).
Solution
• Position handles perfectly (see
Section 6.5.5.1, 6.5.5.2 and 6.5.8).
• Move hands and arms while riding (see
Section 6.15).
• Use padded cycling gloves (see
Section 2.15).
• Optimise handles (see Section 6.5.7).
Solution
• Increasing assistance on the pedelec will
bring immediate relief.
• Targeted exercises to correct imbalance
and shortening of the thigh muscles.
• Stretching exercises for the thigh muscles.
Summary of Contents for E5 ZR F
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