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420 Chain Breaker
420 Chain Breaker
A 420 chain breaker is one of those tools that turns a sprocket swap from a struggle into a quick job. If you’re changing gearing on the Spark X1, you’ll likely need to adjust chain length, and this makes it clean and repeatable.
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Pros
- +Makes chain length changes much easier
- +Helps you do the mod without damaging parts
Cons
- -Not everyone needs it if they never touch the drivetrain
- -Cheap chain tools can be finicky if used wrong
