Shimano MT501/BRM500 R Disc Brake Right Hand Travão de disco

It is the old generation not the new one (MT 520). So, it doesn't have the servo mechanism that allows for better modulation. Otherwise, pretty good.

It is the older generation (not the MT 520) so it doesn't have the servo mechanism that allows better modulation. Otherwise, for the money, it's all right. Way better than the standard entry level MT 200. Nonetheless, if you're upgrading, try to go at least with MT 520, if not 600 series.