CM704-001-15-RAW | Installation Instructions for Ducati Scrambler Countershaft Sprocket

David Bumpus posted this on Jul 5, 2016


Upgrading the front sprocket on your Ducati Scrambler will help improve the amount of torque being transfered to the rear wheel. It's also recommended that you do it whenever you change your chain or rear sprocket. While replacing your front sprocket isn't difficult, installing a new chain requires some specialized tools and knowledge not covered here. If you're unfamiliar with how to install a new chain, we highly recommend taking your bike to a licensed mechanic to have them do it for you. To really improve your engine performance, you should upgrade your exhaust while you're at it.


  • Ducati Scrambler

Parts needed:

  • 1 CM Countershaft Sprocket
  • Stock hardware

Tools required:

  • 4mm, 5mm Allen wrench
  • 8mm, 10mm wrench
  • Chain cutting tool

Time required:  20 minutes

Difficulty: Experienced

Step 1

Place bike up on a jack. Use a 5mm Allen wrench to remove stock front sprocket cover.

Step 2

Use a 4mm Allen wrench to remove stock chain guard.

Step 3

Use a 5mm Allen wrench to remove shifter bracket from shift actuator.

Step 4

Use an 8mm wrench to loosen passenger peg  bracket.

Step 5

Use a 5mm Allen wrench and 10mm wrench to continue loosening passenger peg bracket.


Step 6

Use an 8mm wrench to loosen passenger peg  bracket.

Step 7

Cut and remove chain.

Step 8

Use an 8mm wrench to remove countershaft sprocket. Mark which side of sprocket retainer faces out before removing.

Step 9

Place new countershaft sprocket on shift shaft.

Step 10

Place sprocket retainer on shift shaft. Make sure that it can spin freely in the shift shaft groove.

Step 11

Apply red Loctite to bolts and tighten new countershaft sprocket with  8mm wrench.

Installation complete!

You have successfully installed your Corsa Moto Countershaft Sprocket. Install your new chain, mount the foot peg bracket, and make sure your chain has been adjusted to the proper tension before riding. If you are unsure how to do this, please refer to the guides on our site’s Resource Center.