DualDrive · December 2002
6
THE DUALDRIVE SYSTEM
HOW LONG DID IT
TAKE TO FINISH
DUALDRIVE?
A big team of 25 engineers from all
around the world worked for two
years on this project.
HOW DID WE TEST
DUALDRIVE?
Enthusiastic trekking riders did test
the system under all weather cir-
cumstance for more than a year.
Within these tests we finetuned the
function of the system to perform to
100% of the comfort trekking riders
expectations.
WHAT PARTS DO I NEED
TO COMPLETE A DUAL-
DRIVE TRAIN?
A DualDrive train contains the
following products:
» DualDrive hub: in either without
brake and disc brake version.
» Cassette: 11-34 teeth, 9 speed for
DualDrive 27 or 11-32 teeth, 8
speed for DualDrive 24 or 12-32
teeth, 7 speed for DualDrive 21.
» Derailleur: DualDrive 9 speed for
DualDrive 27, DualDrive 8 speed
for DualDrive 24 or DualDrive 7
speed for DualDrive 21.
» Shifter with Clickbox: 27 speed
with gear indication window or
24 and 21 speed without gear
indication window.
» Spoke protector: There are two
versions available: in versions for
36 or 32 spoke hole hubs.
» Crank: DualDrive cranks offer the
best performance with the Dual-
Drive system.
I BELIEVE A DUAL-
DRIVE SYSTEM HAS
TO BE HEAVIER THAN
A NORMAL EXTERNAL
DRIVE SYSTEM!
In fact the DualDrive system weighs
around 250 gr less than a standard
derailleur drive train system.
WHAT IS THE BENEFIT
OF THE SINGLE SIDED
SHIFTER?
It is more intuitive due to the riding
modes which explain the driver
directly what mode to use in which
terrain.
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