The Bike Sauce | HOW TO: Square Taper to Hollowtech II Conversion // Bottom Bracket & Crankset @TheBikeSauce | Uploaded May 2021 | Updated October 2024, 1 hour ago.
How to convert from Square Taper to Hollowtech II bottom bracket and crankset.

The 2021 Specialized Rockhopper budget upgrade series continues with modernizing the bottom bracket and crankset from the slightly outdated square taper system to the more contemporary Hollowtech II external bearing system.

Affiliate links (helps me out)
Crank Puller (Bike Hand): amzn.to/3bum9SH
Crank Puller (Park Tool): amzn.to/2SXeLch
Square Taper BB Tool (Bike Hand): amzn.to/2QkQ6NE
Crank Cap Tool: amzn.to/3tSOict

How many bottom bracket spacers should you use?
off.road.cc/how-many-spacers-install-bottom-bracket-68-73-shimano-hollowtech-sram-gxp

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The Whole Upgrade Series:
Specialized Rockhopper Budget Upgrade Series: youtu.be/pByHBGmbCwg
Tubeless Conversion: youtu.be/ip2_HG8v4V8
Box Components 1x Drivetrain Conversion: youtu.be/9LLHjeGOJhs
Brand X Ascend Dropper Seatpost Install: youtu.be/vddKWmyJrfE
Front Fork Upgrade: youtu.be/YLR1bLu6cic
The Whole Playlist: youtube.com/playlist?list=PLjdnN8cjd0vB1NtkhemEp9Qnxtf0k3hOz