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REAR DERAILLEUR - Rev. 00/ 09-2020

CAMPAGNOLO COMPONENTS - TECHNICAL MANUAL

3

13s REAR DERAILLEUR

1 - TECHNICAL SPECIFICATIONS

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.

2 - COMPATIBILITY

Combinations other than those shown in the tables could cause the drivetrain to malfunction and result in 

accidents, physical injury or death. 

The use of components that do not belong to the correct range can significantly reduce the overall 

performance of the drivetrain, and it is therefore advisable not to mix components from old ranges with 

those from the new one.

WARNING! 

REAR DERAILLEUR MAX SPROCKET

 (TEETH)

MIN SPROCKET

(TEETH)

EKAR 13s

44

9

REAR DERAILLEUR MAX SPROCKET

 (TEETH)

MIN SPROCKET

(TEETH)

EKAR 13s

44

9

13S REAR 

DERAILLEUR

13S ERGOPOWER 

CONTROLS

13S CHAIN

CABLES AND 

HOUSINGS

EKAR

EKAR

THE MAXIMUM 

SMOOTHNESS

MARKINGS

RD21-EK13

EP21-EKD13L4 / 

EP21-EKD13R4

C13

THE MAXIMUM 

SMOOTHNESS

RD21-EK13 (CF)

13S REAR 

DERAILLEUR

13S ERGOPOWER 

CONTROLS

13S CHAIN

CABLES AND 

HOUSINGS

EKAR

EKAR

THE MAXIMUM 

SMOOTHNESS

MARKINGS

RD21-EK13

EP21-EKD13L4 / 

EP21-EKD13R4

C13

THE MAXIMUM 

SMOOTHNESS

RD21-EK13 (CF)

Summary of Contents for Ekar 13S Rear Derailleur

Page 1: ...CAMPAGNOLO COM 13S REAR DERAILLEUR ...

Page 2: ...REAR DERAILLEUR Rev 00 09 2020 CAMPAGNOLO COMPONENTS TECHNICAL MANUAL 2 Always wear protective gloves and glasses while working on the bicycle WARNING ...

Page 3: ...an those shown in the tables could cause the drivetrain to malfunction and result in accidents physical injury or death The use of components that do not belong to the correct range can significantly reduce the overall performance of the drivetrain and it is therefore advisable not to mix components from old ranges with those from the new one WARNING REAR DERAILLEUR MAX SPROCKET TEETH MIN SPROCKET...

Page 4: ...ING Campagnolo rear derailleurs are designed to work with dro pouts that have the dimensions shown in Fig 2 For your safety and for the performance of the drivetrain please make sure that the dropout of your bicycle has those dimensions If you have any doubts please have a qualified mechanic inspect your bike before using it Drop outs outside these specifications can lead to a serious loss of perf...

Page 5: ...I X Fig 3 LA LB LC LD D C LB LA LC C D LD UT VS030 LA LB e LC LD 6mm Check and if necessary realign the rear derailleur dropout only be using Campagnolo tool UT VS030 Fig 3 NEVER straighten the dro pout with the rear derailleur assembled because you could damage the dropout and cause irreparable damage or loss in functionality to your rear derail leur 4 2 ASSEMBLY AND ADJUSTMENT OF THE REAR DERAIL...

Page 6: ... out C Fig 6 Tightening torque 10 12 Nm 89 106 in lbs 10 12 Nm 89 106 in lbs Fig 6 B C B C Fig 7 Carry out this operation with the chain positioned on the smallest sprocket Fig 7 of the freewheel and with the Ergopower control button set to zero Fig 8 Fig 8 Fig 9 Turn the screw Fig 9 until the centre section of the upper wheel is perfectly aligned with the first sprocket Fig 10 Fig 10 ...

Page 7: ...y lubricated Fig 13 If the cable is damaged please replace it before riding your bicycle If the casing is too short rear derailleur operation will be affected Fig 13 Check the length and if necessary shorten the casing Take care to cut it straight across without altering the configuration of the casing and without damaging the cable in any way Fig 12 Fig 14 Insert the cable into the cable tension ...

Page 8: ...r wheel is in line with the teeth of the sprocket Fig 17 Fig 17 Fig 18 Fig 19 The correct positioning of the upper wheel is achieved as follows Position the chain on the penultimate sprocket the one next to the largest sprocket Fig 19 Turn the screw Fig 20 that adjusts the position of the rear derailleur Fig 20 Check that the screw Fig 18 is correctly adjusted when opera ting the rear derailleur c...

Page 9: ...E Fig 22 until perfect alignment is obtained between the centreline of the top roller and the centreline of the 5TH sprocket If centering between the centrelines of the roller and the fourth sprocket is not correct turn the adjuster E Fig 22 counterclockwise to shift the rear derail leur inwards Turn clockwise to shift the rear derailleur outwards Check that when the shifter is actuated accordingl...

Page 10: ...t unlocking Fig 1 Fig 2 G LOCKING Rotate the rear derailleur clockwise Fig 1 until it locks into rearward posi tion Fig 2 The jockey cage lock button will engage automatically You can now follow the procedure for removing the rear wheel Fig 3 G UNLOCKING After following the rear wheel assem bly procedure rotate the rear derailleur clockwise slightly and simultaneously press the release button acco...

Page 11: ...neutral soap Lubricate all the joints regularly If the rollers do not rotate smoothly clean throughly and replace if necessary To remove the rollers unscrew the screws Fig 1 with a 3 mm Allen screw Comply with the following specifications when replacing the pulleys TIGHTENING TORQUE 2 7 Nm 24 in lbs Before lubricating carefully clean the drivetrain system sprocket pack chainrings and rear deraille...

Page 12: ...f use for example competitions rain winter roads with salt weight of the athlete etc Schedule the appropriate main tenance with your mechanic Salty environments such as winter roads or roads near the sea may lead to galvanic corrosion of most of the bicycle s exposed components To prevent damage malfunctions and accidents rinse dry and carefully re lubricate all components which are subject to thi...

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