Cassette Removal & Installation

Cassette Removal & Installation

Calvin demonstrates how to remove and install cassette cogs and choose the correct lockring tool.

Important note!
There’s another cog system called a “freewheel”, and the procedures in this video are for cassette systems, not freewheel systems.
If you’re not sure what you’ve got, watch this other video to help you determine which is which.

Why are we doing this? Sprocket teeth wear over time and no longer engage the chain leading to poor drivetrain train performance and chain skipping. This procedure is also used when replacing the cassette for an upgrade or to changing gear ratios.

Video contents:
00:00 Preliminary Info
01:37 Lockring Tool Selection
02:07 Removal Process
05:41 Installation Process

Questions or comments? Leave them below!

➤Other Cassette & Freewheel Videos:
Determining Cassette/Freewheel Type & Tool Selection ▶︎
Freewheel Removal & Installation ▶︎

➤ Tools & materials used:
Cassette Lockring Removal Tool:
• FR-5.2 Cassette Lockring Tool:
Other options:
• FR-5.2H Cassette Lockring Tool With Handle:
• FR-5.2G Cassette Lockring Tool With 5mm Guide Pin:
• FR-5.2GT Cassette Lockring Tool With 12mm Guide Pin:
• BBT-5/FR-11 Bottom Bracket Cassette Lockring Tool (for Campagnolo®):

Freewheel Tool Driver (wrench):
• PAW-12 12-Inch Adjustable Wrench:
Other options:
• FRW-1 Freewheel Remover Wrench:
• TW-6.2 Ratcheting Click-Type Torque Wrench:

Grease or Anti-seize:
• PPL-1 Polylube 1000™ Lubricant (Tube):
Other options:
• ASC-1 Anti-Seize Compound:
• PPL-2 Polylube 1000™ Lubricant (Tub):

Chain Whip:
• SR-12 Sprocket Remover / Chain Whip:
Other options:
• HCW-16.2 Chain Whip / Pedal Wrench:
• SR-2.2 Sprocket Remover / Chain Whip:
• CP-1.2 Cassette Pliers:

For a text-based walk-through of this process:

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➤ About Park Tool:
Since our founding in 1963, Park Tool has been the leading name in bicycle tools. Our YouTube channel is an extension of our mission to be the ultimate resource for mechanics and riders of all skill levels. Here you will find comprehensive repair help tutorials for a wide range of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products.


  1. Anb Bna on June 27, 2019 at 8:28 pm

    Well scripted, outstanding clarity and excellent close-ups. Thanks for making this video.

  2. Dominic Fiekens on June 27, 2019 at 8:28 pm

    i really love this stoic clean and precise informations

  3. Jesse Black on June 27, 2019 at 8:28 pm

    What dumb ass gave this a thumbs down? A demonstration does not get any easier. Thanks Calvin

  4. Bill Pottinger on June 27, 2019 at 8:30 pm

    Whenever I get the blues I click on over to Park Tool and re-watch my favorite Calvin tutorials. Boom! Blues are gone.

  5. Connor Jackson on June 27, 2019 at 8:33 pm

    anyone else having trouble getting it loose?

  6. dumbo7429 on June 27, 2019 at 8:35 pm

    So u need FR5 and you can make chain whip from old chain.

  7. bludangell on June 27, 2019 at 8:37 pm

    Great video, very clear and great presentation. I did chuckle when Calvin said to give the vid a thumbs up…and failed to do a thumbs up lol 🙂

  8. D E S T R U C T O on June 27, 2019 at 8:39 pm

    calvin is G.O.A.T

  9. Shane Roberg on June 27, 2019 at 8:39 pm

    Park Tools #1💖👍👍👍

  10. Sudipto Roy on June 27, 2019 at 8:40 pm

    My spring on the rear wheel is stuck on the drive side. It is possibly entered the wrong way with the narrow side out by an incompetent mechanic. If I yank it with a pair of pliers it might get deshaped. Is there any tips or tricks to take it out? Not really related to this but would be grateful if I get some help here. By the way, it doesn’t affect my wheel mounting or movement.

  11. Adrian Varlan on June 27, 2019 at 8:41 pm

    the last 2 rings (the smaller ones) are independent of the cassette body. Do the teeth on the last rings need to be aligned with the rest of the teeth on the cassette in a certain way ? Other videos out there speak of such a process…

  12. Brian Bechtol on June 27, 2019 at 8:42 pm

    I got lower back pain just from watching the cassette removal procedure

  13. Andy K on June 27, 2019 at 8:43 pm

    Great as always

  14. Graeme on June 27, 2019 at 8:43 pm

    wax on wax off lol.

  15. LM C on June 27, 2019 at 8:43 pm

    Calvin is the absolute Best, if not he is the Master Jedi of bike repair…

  16. EFRAIN TOT CHEN on June 27, 2019 at 8:44 pm

    me gustaria comprar herramientas

  17. jose2883 pv on June 27, 2019 at 8:45 pm

    This video is exactly what I was looking for… thanks so much…

  18. Richard E on June 27, 2019 at 8:50 pm

    Yet another thorough, comprehensive, well-paced, and detailed Park Tool instructional video. Thanks so much, Park Tool. You’re awesome, Calvin!

  19. chatate on June 27, 2019 at 8:52 pm

    Well filmed, very informative. Two thumbs up

  20. SansAziza on June 27, 2019 at 8:55 pm

    This video contains zero BS. I’m really satisfied.

  21. Qt O21 on June 27, 2019 at 8:56 pm

    Hi. Can I replace my ultegra to 105 cassette? Same speed and size. If yes, any adjustment required? Thanks

  22. Jeyson Supnet on June 27, 2019 at 8:59 pm

    How can I order this tools and installation

  23. Phat Meow on June 27, 2019 at 9:03 pm

    Hi for installation : should i wipe off old grease with alcohol first or simply reapply new grease to the freebody hub?

  24. Juan Su on June 27, 2019 at 9:04 pm

    Another great video! thanks!

  25. Kurtis McKemmie on June 27, 2019 at 9:04 pm

    Anyone know if bicycle shops sells them?

  26. Hertog von Berkshire on June 27, 2019 at 9:05 pm

    Body weight technique at 4:07 – Far better to arrange the two tools at a narrow angle to each other, then squeeze together with both hands. It is very difficult to bring full body weight to bear. Moreover, for the vast majority of people, even full body weight won’t nearly match the force that can be exerted by the squeeze technique.

  27. 1777DK on June 27, 2019 at 9:06 pm

    For once my body weight will be an advantage …

  28. Shaun Dunlop on June 27, 2019 at 9:06 pm

    Thank you. Very clear, easy to follow instructions.

  29. Kim Fielding on June 27, 2019 at 9:07 pm

    Thanks, for all your informative hints, tips, and knowledge.

  30. David Thomas on June 27, 2019 at 9:07 pm

    This guy knows his stuff. Excellent teacher in his field.

  31. Ralph Aimher on June 27, 2019 at 9:10 pm

    You are the number one on the business

  32. Mr. BLACKHAWK on June 27, 2019 at 9:11 pm

    I don’t use cassettes! I graduated to CDs years ago! 😛

  33. H B on June 27, 2019 at 9:12 pm

    Will repeated removal and installation cause damage to the lockring or the first cog? Its really nice to be able to get the cogs off because they fit in my ultrasonic cleaner haha

  34. Dorkus Schmleck on June 27, 2019 at 9:13 pm

    I noticed Calvin using the chainwhip on the smallest cog. I always used the largest cog because I am probably doing it wrong as is my tradition with anything mechanical. I figured that there would be less force on the chainwhip and thus easier to use. Next time Im trying the small one.

    Videos like this make me want to take apart my bike "just because" :).

  35. antonw91 on June 27, 2019 at 9:13 pm

    Great tutorial Calvin. Worked a treat for removing the Dork Disc… i went to replace my SRAM PG-1130 with another SRAM PG-1130 and it doesn’t fit??? Really baffling the only difference is mine was a black 11-42t my new one is a silver 11-36t I’m unable to tighten the lock nut with the smallest cog on it. Any ideas anyone?

  36. miguel cintron on June 27, 2019 at 9:14 pm


  37. deegleedee on June 27, 2019 at 9:14 pm

    thanks luigi

  38. dj james arundel on June 27, 2019 at 9:14 pm

    I was trying to get a tape out my old music system and ended here… 😂

  39. Shane Roberg on June 27, 2019 at 9:14 pm


  40. Malcolm Corbett on June 27, 2019 at 9:15 pm

    Very helpful 👍🏻

  41. stephan kraft on June 27, 2019 at 9:21 pm

    how about casette on a voltage gt 500 scooter cant find anywhere only bikes .please helpl cant get off hub. thanks

  42. Pollo Frito on June 27, 2019 at 9:21 pm

    Calvin is so damn sexy!

  43. Ozzy on June 27, 2019 at 9:21 pm

    So all I need to install the cassette is the lockring tool ? No chain whip required ?

  44. Shane Roberg on June 27, 2019 at 9:22 pm

    Merry Christmas Park Tool u.s.a 👍

  45. Intoy Zetroc on June 27, 2019 at 9:22 pm

    what type of lube is that?

  46. Denis& Litisha on June 27, 2019 at 9:23 pm

    Calvin…please don’t say shram.

  47. Khaster 6 on June 27, 2019 at 9:24 pm

    One of your better videos

  48. Nick Lynch on June 27, 2019 at 9:25 pm

    Your videos are great and super easy to follow, thank you!

  49. Yuxuan Sun on June 27, 2019 at 9:25 pm

    Will the serrations wear out after a couple of disassemblies&assemblies?

  50. Wahyudi Widodo on June 27, 2019 at 9:27 pm

    How to tell a worn out cassette?