Can I adjust the derailleurs while I am riding like you can with a barrel adjuster on a mechanical system? SRAM USA August 23, 2018 16:47 Updated Yes, and it’s easy. See details on micro-adjustments here. Related articles What are the indexes when adjusting the derailleurs? Is SRAM RED eTap waterproof? How do I shift the front derailleur when I am tuning it in the workstand? I have one hand on the bar and one hand turning the crank. I can’t execute a front shift unless I stop turning the crank. What is the warranty on eTap® and eTap® HRD components? Will the parts stay “on” when the bike is on my car rack? Comments 0 comments Article is closed for comments.