Compression Adjuster On Rear Frame Damper - Bosch ZEMO SU-E FS 12 Translation Of Original Operating Instructions

6.5.17 Compression adjuster on rear frame damper

When optimally adjusted, the rear frame damper deflects quickly and unhindered when the bike hits bumps
and absorbs a bump. Traction is retained (blue line).
The saddle rises slightly when absorbing a bump (green line).
Compression adjuster set to hard
• Allows the rear frame damper to move higher in
the deflection range. This makes it easier to
improve efficiency and maintain momentum when
pedalling or riding over uniformly hilly terrain and
around bends.
• Deflection feels somewhat harder on bumpy
terrain.
Figure 164: Optimum rear frame damper ride performance over bumps
Threshold
The damping threshold prevents deflection until a
medium impact or downward force occurs.
Threshold mode increases drive efficiency over
level terrain.
The threshold setting can be used to improve
pedalling efficiency over flat, hilly, level or slightly
rugged terrain. In threshold mode, higher pedelec
speeds lead to greater impact force when a
pedelec hits a bump, causing the fork to deflect,
and the bump is absorbed.
MY22Z0a - 12_1.0_25.07.2022
Compression adjuster set to soft
• Allows the damper to deflect quickly and easily.
This makes it easier to maintain speed and
momentum when riding over bumpy terrain.
• Deflection feels somewhat less hard on bumpy
terrain.
• When the compression adjuster is in the open
position, the rear frame damper deflects quickly
and unhindered through its entire deflection
range.
• When the compression adjuster is in the
threshold position, the rear frame damper
counteracts deflection until a medium impact or
downward force occurs.
• When the compression adjuster is in the blocked
position, the rear frame damper counteracts
deflection throughout its deflection range until a
strong impact or downward force occurs.
Operation
147