How to replace brake lever from integrated shifter? I had recently upgraded from grip shifter to thumb shifter. I have attached the new ST EF50 shifter for my Btwin RR 340vtt. Just today I broke the brake lever from the shifter. I don't want to replace the whole set. I just want to replace the brake lever. is it possible? I have some brake lever which may fit with that. Is that really possible? the brake lever cannot be welded as its an alloy. Do I have any options.
I don't know the answer to ST-EF50 in particular, but usually the lever blade (the part that broke here) is indeed able to be mechanically removed and reinstalled, given the willingness to go that deep with disassembly. However, Shimano doesn't sell replacement lever blades for many or any brake levers anymore, and definitely not the more entry level ones such as this. If you were able to replace it, it would tend to need to be an exact matching part; there's nothing like standardization for this. So that suggests that if you are able to replace it, it's going to be by way of a blade scavenged from another of the same unit. The good news is that ST-EF50 is one of if not the most populous flatbar such part from the last decade or so, so a lot of shops that keep broken shifters and derailers for cannibalization may have one in a bucket somewhere.