My brake breaks

I have the front brake only on my bikes. Thus, I always ensure that they are always in good working conditions.

My hydraulic brake set came from a Deore Group set, which I bought about 2 years ago. The left lever assembly / front brake is installed in my 29er, while the right lever assembly / rear converted to front brake is in my 69er/26er.

Unfortunately, bad luck happened. Fortunately, it happened not at the wrong time and wrong place.

After my ride this morning and after cleaning the 69er, I again checked and tested my brake. When I pressed the lever, I heard something fell. I retrieved it and looked where it came from.

It's the part of the assembly that holds the lower pin of the lever that's broken:

 With the broken part:

Without the broken part:

Nonetheless, the brake is still functioning well; but, I won't use it anymore.

Whew! It's time to upgrade! I'm also considering of getting back my rear brakes as emergency brakes.