Installing The Input Speed Ring - NuVinci Harmony 330 Owner's Manual

6.3 Installing the Input Speed Ring

1. Belt compatible Harmony systems come
with an Input speed ring (A) that must be
secured onto the assembled sprocket snap
Ring (B). The twelve magnets in the Input
speed ring provide pedal cadence for the
Harmony system.
Chain-only Harmony systems do

!
not utilize the input speed ring, as
they sense input speed directly from
the steel chain sprocket. If you are unsure of
which system the bicycle came installed with,
see section 8.5.
2. After installing the sprocket (C), sprocket
spacer (D, if required), and sprocket snap
sing (B, see section 6.2), and prior to
installing the Harmony Hub Interface (see
section 6.6), install the input speed ring (A)
over the assembled sprocket snap ring (B)
•
Assemble with the magnets facing the
sprocket, as shown.
•
Align the "tooth" on the Input speed ring
with the opening of the sprocket snap ring
(E), as shown.
•
Snap and secure the Input speed ring over
the assembled sprocket snap ring.
TECHNICAL OWNER MANUAL
A
C
D
B
E
A
HARMONY ASSEMBLY OF COMPONENTS
EN
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