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Re: LTWOO ER9 & ERX - Electronic groepsets Is crash protection on the app on or off?
February 18, 2024, 08:31:21 PM 		1
Re: LTWOO ER9 & ERX - Electronic groepsets
Quote from: Serge_K on February 19, 2024, 09:39:54 AM
I've installed 5 ER9 groups in the last 2 weeks. 1 gave me issues for some reason, but it was my fault. Make sure the limit screws are set properly, as well as the 3rd screw that sets the tension on the cage. The RD protects itself very quickly, so if any of the 3 screws are off, the cage wont shift. It's given me a new appreciation for my own incompetence and the fact that stuff usually works as long as it's installed and setup properly. During the builds i'm often thinking "this is such POS" but then an hour later, or a week later, i realize it's just me being incompetent / thick / tired.
Did you unplug and reset? battery's charged?
If you remove the wheel, does the RD shift? Are both FD & RD running the latest firmwares?

I second that. I've found that as soon as the RD's motor will experience excessive vibration or resistance it will stop shifting and/or shift back to it's original position. For instance, it avoided the big big chainring/casette sprocket combo when I had the RD's upper pulley set up too close to the cassette. It didn't touch. But the vibrations alone caused it to immediately shift back as soon as it went into that gear. A short tweak of the b-screw and the issue stopped.
February 19, 2024, 10:04:59 AM 		1