SRAM SRAM DUALDRIVE Manuale utente

operating instructions

betriebsanleitung

notice d’utilisation

handleiding

brugsanvisning

bruksanvisning

DualDrive · December 2002

Precautionary measures,

which protect from possible

accident, injury or danger to

life, or which prevent possible

damage to the bicycle.

These instructions contain important

information on your DualDrive

system.

Cycling with DualDrive is easy. It’s

true. It may surprise you just how

many features your DualDrive

system has.

To make the best possible use of

your DualDrive please take the time

to read these operating instructions

carefully.

Your DualDrive system is almost

maintenance-free. Should you have

any queries that are not answered in

these operating instructions, your

qualified bicycle specialist will be

pleased to help you.

Have a nice time and enjoy

”dualdriving”.

Special advice to assist in

the better handling of the

operation, control and adjust-

ment procedures.

Please take particular note of the

following:

Publ. No. 5000 E/D/F/Nl/Dk/Sv

Information may be enhanced

without prior notice.

Released December 2002

SRAM Technical Documentation,

Schweinfurt/Germany

Shimano is a trademark of Shimano Inc., Japan.

DualDrive · December 2002 3

CONTENTS

THE DUALDRIVE SYSTEM 4

OPERATION 7

MAINTENANCE AND CARE

» Gear adjustment 8

» Remove and fit rear wheel 10

» Cleaning and Lubrication 11

» Cable change 12

ASSEMBLY OF COMPONENTS 14

TECHNICAL DATA 18

ADDRESSES 110

DualDrive · December 2002

THE DUALDRIVE SYSTEM

WHAT IS DUALDRIVE

The general perception is that shifting

requires a Zen-like touch from years

of trial and error . . . mostly error.

Many riders wanted something

easier. We really love this kind of

challenge. And DualDrive exceeds

all the expectations.

DualDrive is a drive train consisting

of a self-energized internal hub and

rear derailleur for smooth adjustment.

It’s the market’s most revolutionary

transmission.

OPERATING PRINCIPLE

Single-side shifting allows the rider to

use one-hand to easily click through

a 27-, 24- or 21 gear option. And

DualDrive’s superior gear indication,

featuring three intuitive riding modes,

creates a smooth, comfortable ride

for novice and masters alike. Easy

shifting.

Advanced performance. Mission

accomplished.

RIDING MODES

DualDrive has 3 intuitive shifting

modes. Hill mode, standard mode, and

fast mode. Each mode is designed to

allow the rider to be in the proper

mode wherever you go.

Fast

DualDrive · December 2002 5

THE DUALDRIVE SYSTEM

DualDrive hub and cassette

Super light shifting forces,

load shiftable. Stand-still shifting

(mode selector): easy re-start at

a traffic light

DualDrive single-sided shifter

Simple gear indication:

one view for all information.

Intuitive logical shifting.

DualDrive rear derailleur

Light, precise shifting.

Larger pivots, links and cages:

increased rigidity and durability.

DualDrive Clickbox

Easy wheel removal:

pre-adjusted gears for simplicity.

DualDrive · December 2002

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.

DualDrive · December 2002 7

OPERATION

RIDING MODES

Use the thumb shifter to

choose the gear ratio. You can

operate it in stand still or while

riding. The smoothest and fastest

gear change happens when

changing gears while pedaling.

DERAILLEUR

Use the rotating grip (to the

right) to change gear of the

derailleur system. The smoothest

and fastest gear change happens

when changing gears while

pedaling with low force.

DualDrive · December 2002

MAINTENANCE AND CARE

GEAR ADJUSTMENT

GEAR HUB

Place thumb shift lever

in standard mode.

Match up the yellow marks in

the Clickbox viewing window

by twisting the barrel adjuster.

DERAILLEUR

Limit screw adjustment:

View the rear derailleur and

pulleys from behind the rear of

the bicycle.

» Turn the limit screw marked ’H’ on

the outer link of the derailleur to

align the upper guide pulley cen-

ter with the outboard edge of the

smallest cog – clockwise moves

the guide pulley inboard towards

the wheel.

» While turning the crank, push the

rear derailleur towards the larger

cogs by hand.

» Align the upper guide pulley under

the largest cog, by turning the

limit screw marked ’L’ on the outer

link – clockwise moves the guide

pulley outboard away from the

spokes.

DualDrive · December 2002 9

MAINTENANCE AND CARE

GEAR ADJUSTMENT

Chain gap adjustment:

Chain gap is the distance between the

upper guide pulley and the cog the

chain is riding on. Optimal chain gap

allows quick, efficient shifts.

» While turning the crank, push the

rear derailleur inboard by hand to

the largest cog.

» Hold the derailleur in this position

while making the following adjust-

ment.

Use a 3 mm hex wrench, turn

the b-adjust screw until the

chain gap equals approximately

6 mm (1/4”).

– Turn the b-adjust screw clock-

wise to increase the chain gap.

– Turn the b-adjust screw

counterclockwise to decrease

the chain gap.

Do not use the b-adjust screw

to adjust the rear derailleur

to act as a chain-tensioning device

or to prevent chain suck. This

increases the chain gap causing

poor shifting performance.

Index shifting adjustment:

» Make sure the chain is located on

the smallest sprocket.

» Shift the chain to the second cog.

– If the chain hesitates or does not

shift, increase the cable tension

by turning the shifter barrel

adjuster counterclockwise.

–

If the chain shifts beyond the

second cog,

decrease the cable

tension by turning the shifter

barrel adjuster clockwise.

» Repeat the two former steps until

shifting and cable tension is

accurate.

» While turning the crank, shift the

chain up and down the cassette

several times to ensure that your

derailleur is indexing smoothly.

3 mm

6 mm

(1/4")

DualDrive · December 2002

MAINTENANCE AND CARE

REMOVE AND FIT REAR WHEEL

REMOVE REAR WHEEL

» Rotate the twist shifter to the hig-

hest gear position (speed „7/8/9“).

Place thumb shift lever

in hill riding mode.

Push Clickbox button down.

» Pull Clickbox off the axle.

» Dismantle wheel.

Unscrew shifting rod (1)

FIT REAR WHEEL

» Fit wheel in frame dropouts.

Place retaining washers (2) on

both sides of the axle – the

serrations must bear against the

dropout (washers with lugs: these

must engage in the dropout slots).

» Tighten up axle nuts. Tightening

torque 30 – 40 Nm (266 – 350 in. lbs.).

» Screw shifting rod (1) into the hub

axle and thigthen it with 0.2 Nm

(1.8 in. lbs.).

» Push on Clickbox to the stop on

the hub axle. The thumb shift lever

must be positioned in the hill riding

mode and Clickbox button must be

pushed down.

» Bring Clickbox button back to initial

setting by pushing it up from under-

neath.

» Check the gear settings.

0,2 Nm

Indice

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