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LTWOO MTB Bike 9V 10V 11V 12V Shifter Trigger Derailleurs 1X9 1x10 1X11 1X12 1X13 Speed Shift Groupset Compatible SRAM SHIMANO|Bicycle Derailleur| - AliExpress
![Hack: Black Water Cyclist gets help from Dirk Stock to create SRAM 1 x 13 mechanical drivetrain - Bikerumor Hack: Black Water Cyclist gets help from Dirk Stock to create SRAM 1 x 13 mechanical drivetrain - Bikerumor](https://bikerumor.com/wp-content/uploads/2020/08/Black-Water-Cyclist-youtube-screenshot-SRAM-1-x-13-drivetrain-hack-Dirk-Stock.jpg)
Hack: Black Water Cyclist gets help from Dirk Stock to create SRAM 1 x 13 mechanical drivetrain - Bikerumor
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