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Campagnolo 9- and 10-speed cassette sprockets

Campagnolo 9- and 10-speed cassette sprockets on this page:

1st position 9-speed: 13-tooth for 13-26, 13-26

Inner 9-speed only sprockets 12-tooth for 11-21 | 12-tooth for 11-23 | 13-tooth for 11-23 | 14-tooth for 11-23 | 15-tooth for 11-23 | 17-tooth for 11-23

1st postion 10-speed

Inner 10-speed only sprockets

9 & 10-speed inner Sprockets: 13-tooth | 14-tooth 3rd position | 14-tooth 2nd-4th position | 15-tooth | 17-tooth 4th-7th position | 18-tooth 5th-7th position | 19-tooth A, 6th-8th position | 19-tooth C, 6th-8th position | 28-tooth

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Campagnolo 8-speed cassettes are not compatible with 9- and 10-speed hubs. They have different spline patterns. The reverse is also true. You cannot fit 9- and 10-speed cassettes/cogs on an 8-speed freehub.

A given 9- or 10-speed cassette has two kinds of cogs. The outside cog (1st position), which has its own integral spacer, and the rest of the cogs. You must use the correct first-position sprocket. If you are setting up a 9-speed cassette, you must use a 9-speed first position sprocket. The same is true of a 10-speed set-up.

In general, cogs mounted after the first position are interchangeable between 9- and 10-speed systems. But there are exceptions and we have noted them in the individual cog listings.

There are two kinds of Campagnolo 9 & 10-speed cassettes. The original 9-speed Exa-Drive sprockets have a two-step indentation to help pick up the chain, greatly enhancing shifting. Unannounced, in the spring of 2000, Campagnolo started shipping an improved version of Exa-Drive, called Ultra-Drive. The Exa- & Ultra- Drive cogs are interchangeable and can be mixed in a single cassette.


1st Position 9-speed sprockets:

13-tooth for 13-23 & 13-26. New, $35.00

Part# 56520

  • Campagnolo part# CA9S-014
  • These cogs are 5mm wide.
  • We have six in stock

Because some first-position 10-speed 13-tooth cogs are 4.9mm wide (.1mm thinner), this cog can be a good Class-B fit for the following 10-speed cassettes: Veloce, Centaur, Chorus & Record 1st position 13-26 & 13-29

Thirteen tooth first postion


Inner 9-speed only sprockets:

12-tooth second position for 11-21 9-speed cassette. New, $30.00

Part# 56521

  • Campagnolo part# CA9S-021
  • 4.5mm spacing
  • We have five in stock

Twleve-tooth second postion


12-tooth second position for 9-speed 11-23 cassette. New, $30.00

Part# 56522

  • Campagnolo part# CA9S-022
  • 4.5mm spacing
  • We have two in stock

12-tooth sprocket


13-tooth third-position for 9-speed 11-23 cassette. New, $35.00

Part# 56524

  • Campagnolo part# CA9S-132
  • We have three in stock

Thirteen toot-third-position


14-tooth fourth-position for 9-speed 11-23 cassette. New, $35.00

Part# 56526

  • Campagnolo part# CA9S-142
  • We have five in stock

14 tooth cog


15-tooth fifth-position for 9-speed 11-23 cassette. New, $35.00

Part# 56528

  • Campagnolo part# CA9S-152
  • We have five in stock

15-tooth sprocket


17-tooth sixth-position for 9-speed 11-23 cassette. New, $35.00

Part# 56530

  • Campagnolo part# CA9S-172
  • We have five in stock

17-tooth vcog


1st Position 10-speed sprocket:


Inner 10-speed only sprockets:


9 & 10-speed Exa-Drive Sprockets:

13-tooth 2nd & 3rd position. New, $30.00

  • Part# 56523
  • Campagolo part# CA9S-131
  • We have two in stock

For 9-speeds this is a second-position for a 12-21 & 12-23 cassette

For 10-speeds:

  • 10s Veloce 2nd position 12-23 & 2nd position 12-25
  • 10s Centaur 3rd position 11-23, 2nd position 12-25
  • 10s Chorus 3rd position 11-23, 2nd position 12-25
  • 10s Record 3rd position 11-21 & 11-23, 2nd position 12-23 & 12-25

thirteeen-tooth cog


14-tooth 2nd, 3rd & 4th position. New, $35.00

  • Part# 56525
  • Campagolo part# CA9S-141
  • We have five in stock

For 9-speed cassettes:

  • 4th position 11-21
  • 3rd position 12-21 & 12-23,
  • 2nd position 13-23 & 13-26  

For 10-speed cassettes:

  • 4th position 11-21 & 11-23
  • 3rd position 12-23 & 12-25
  • 2nd position 13-23, 13-26 & 13-29

Fourteen tooth sprocket


15-tooth 2nd, 3rd, 4th, 5th position. New, $35.00

  • Part# 56527
  • Campagolo part# CA9S-151
  • We have four in stock

For 9-speed cassettes:

  • 5th position 11-21
  • 4th position 12-21 & 12-23
  • 3rd position 13-23 & 13-26

For 10-speed cassettes:

  • Veloce 4th position 12-23 & 12-25, 3rd position 13-26 & 13-29, 2nd position 14-23
  • Centaur 5th position 11-23, 4th position 12-25, 3rd position 13-26 & 13-29
  • Chorus 5th position 11-23, 4th position 12-25, 3rd position 13-26 & 13-29
  • Record 5th position 11-21 & 11-23, 4th position 12-23 & 12-25, 3rd position 13-26 & 13-29

Campagnolo 15-tooth cog


17-tooth 4th, 5th, 6th & 7th position. New, $35.00

  • Part# 56529
  • Campagolo part# CA9S-171
  • We have two in stock

For 9-speed cassettes:

  • 7th position 11-21
  • 6th position 12-21 & 12-23
  • 5th position 13-23 & 13-26

For 10-speed cassettes:

  • Veloce 6th position 12-23 & 12-25, 5th position 13-26 & 13-29, 4th position 14-23
  • Centaur 7th position 11-23, 6th position 12-25, 5th position 13-26 & 13-29

Seventeen tooth cog


18-tooth 5th, 6th & 7th position. New, $35.00

  • Part# 56531
  • Campagolo part# CA9S-183
  • We have five in stock

For 9-speed cassettes:

  • 7th position 12-21
  • 6th position 13-23 

For 10-speed cassettes:

  • Veloce 7th position 12-23, 6th position 13-26, 5th position 14-23
  • Centaur 6th position 13-26

eighteen tooth cassette cog


19-tooth-A: 6th, 7th & 8th position. New, $35.00

  • Part# 56532
  • Campagolo part# CA9S-191
  • We have four in stock

For 9-speed cassettes:

  • 8th position 11-21
  • 7th position 11-23 & 12-23
  • 6th position 13-26

For 10-speed cassettes:

  • Veloce 7th position 12-25, 6th position 13-29
  • Centaur 8th position 11-23, 7th position 12-25, 6th position 13-29 

19-tooth sprocket


19-tooth-C: 6th, 7th & 8th position. New, $35.00

  • Part# 56533
  • Campagolo part# CA9S-193
  • We have five in stock

For 9-speed cassettes:

  • 8th position 12-21 & 13-23

For 10-speed cassettes:

  • Veloce: 8th position 12-23, 7th position 13-26, 6th position 14-23
  • Centaur 7th position 13-26

Campagnolo 19-tooth cong


28-tooth stainless-steel sprocket. New, $30.00

Part# 56144

This is an aftermarket stainless-steel sprocket made for Quality Bicycle Products

9-speed cassette spricket

Though labeled 9-speed, it will work on 10-speed systems as well.