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REPLACING THE JOCKEY CAGE - Rev. 01/ 06-2021

CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

3

REPLACING THE EKAR JOCKEY CAGE

THIS TECHNICAL MANUAL IS INTENDED FOR USE BY PROFESSIONAL MECHANICS.

Anyone who is not a qualified professional for bicycle assembly must not attempt to install and operate on 

the components independently due to the risk of carrying out incorrect operations which could cause the 

components to malfunction, resulting in accidents, physical injury or even death. 

The actual product may differ from what is illustrated, as the specific purpose of these instructions is to 

explain the procedures for using the component.

1.1 - TOOLS REQUIRED

ALLEN WRENCH

TORX WRENCH T15

FIXED WRENCH

FIXED WRENCH

3

mm

8 mm

8 mm

30 mm

8 mm

T15

Tools supplied by other manufacturers for components similar to Campagnolo

®

 components, may 

not be compatible with Campagnolo

®

 components. Likewise, tools supplied by Campagnolo s.r.l. 

may not be compatible with components supplied by other manufacturers.  Always check with your 

mechanic or the tool manufacturer to insure compatibility before using tools supplied by one manu-

facturer on components supplied by another.

!

1 - DISASSEMBLING THE EKAR REAR DERAILLEUR JOCKEY CAGE 

(RD21-EK13)

The operations described in this procedure are only applicable to jockey cage 

code RD21-EK13.

Summary of Contents for Ekar RD21

Page 1: ...CAMPAGNOLO COM REPLACING THE JOCKEY CAGE OF THE REAR DERAILLEUR RD21 EK13...

Page 2: ...REPLACING THE JOCKEY CAGE Rev 01 06 2021 CAMPAGNOLO COMPONENTS TECHNICAL MANUAL 2 Always wear protective gloves and glasses while working on the bicycle WARNING...

Page 3: ...of these instructions is to explain the procedures for using the component 1 1 TOOLS REQUIRED ALLEN WRENCH TORX WRENCH T15 FIXED WRENCH FIXED WRENCH 3 mm 8 mm 8 mm 30 mm 8 mm T15 Tools supplied by ot...

Page 4: ...Fig 2 3 Accompany the jockey cage until the spring is completely unloaded Fig 3 WARNING Left hand thread WARNING The rear derailleur is spring loaded and will quickly return to its starting position P...

Page 5: ...ECHNICAL MANUAL 5 5 Remove the jockey cage fixing nut Fig 6 Fig 7 6 Use a T15 Torx wrench to remove the nut on the jockey cage side acting on the clutch shaft Fig 8 Fig 9 7 Remove the jockey cage and...

Page 6: ...with your mechanic or the tool manufacturer to insure compatibility before using tools supplied by one manu facturer on components supplied by another Campagnolo spare parts must only be installed by...

Page 7: ...rrectly Fig 1 2 Apply Loctite 2701 Fig 2 to the clutch shaft 3 Install the jockey cage hooking the spring in the corresponding hole on the jockey cage itself Fig 3 4 Install the nut on the jockey cage...

Page 8: ...ing nut WARNING Observe the tightening torque A higher tightening torque could damage the components inside the rear derailleur causing it to malfun ction 7 Apply Loctite medium 243 to the cover Fig 9...

Page 9: ...NG The rear derailleur is spring loaded and will quickly return to its starting position Pay special attention when accom panying the jockey cage and keep your fingers well away from points at risk of...

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