Installing The Sentinel
Installing The Sentinel What is it? “The Sentinel” is a double sided Chain Catcher made to attach with almost any braze-on front derailleur. This Quick-Fix video
The “How To” video library for bicycle setup, component installation, adjustments, troubleshooting and more — especially for drivetrain, derailleur and shifting systems. Learn the tricks, hear the tips, and follow examples to improve shifting and overall bicycle performance.
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