I'm actually a big fan of both the Sachs and the SRAM .. the SA had lots of problems when it was standard issue for the hybrid drive Terns .. the solution for some of the customers after dealer adjustments and replacements was to install a SRAM Dual Drive.. I still have my SRAM DD SpeedPro, which continues to work flawlessly since 2005 ..

I like the pull chain Sachs for my MTB application because it's less exposed and a neater arrangement..