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Published on Apr 28, 2016
For many, drivetrain tuning remains something of a dark art—passed down through generations of secretive mechanics. Even if you’ve never worked on your bike before, the OTTO Rear Derailleur Tuning System makes the mysterious art of maintaining smooth shifting easy as pie. The OTTO system is compatible with all Shimano and SRAM 9 to 11 speed drivetrains. Watch this week's Ask a Mechanic to find out how to best utilize this wonderful new tool!
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