Bushnell Eccentric Classic Bottom Brackets Chainring The Zinger provides chainline adjustability

The Zinger provides chainline adjustability and a broad range of cog sizes for whatever type of bike you’re lookin’ to simplify

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We have a disproportionately large percentage of singlespeed enthusiasts in our ranks

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Bushnell Eccentric Classic Bottom Brackets Chainring The Zinger provides chainline adjustabilityThe Problem Solvers Bushnell Eccentric Bottom Bracket is the industry leading design for chain tension adjustment on tandem and dedicated single speed bikes equipped with eccentric bottom bracket shells. This tried and true design is easy to install and fine tune to your ideal placement and holds standard, English threaded bottom bracket cups. The classic version features full body, aluminum construction across the shell for maximum surface area