One kinda controversial aspect when it comes to small-displacement motorcycles, the availability of a front drum brake in some models used to be even more relevant in countries such as Brazil until a few years ago. Even when Yamaha released the XTZ 150 Crosser in 2014 as an eventual replacement to the XTZ 125, there were versions still fitted with front drum brake until at least 2017, in contrast to a front disc brake which was a standard fitment to the XTZ 125, according to Yamaha because in some parts of Brazil there was a demand for all-around drum brakes. Even though on motorcycles a drum brake tends to be most often mechanically operated, while the discs usually resort to hydraulics just like car brakes, the case against drums goes from its perception as "archaic" to the impossibility to be paired to the ABS system, which is not the case on cars which still use rear drums because of the hydraulic operation, or even trucks and buses which rely on air brakes to which all-around drums are not a problem to integrate the ABS. Had hydraulic drums been mainstream on motorcycles, maybe front drum brakes wouldn't be phased out entirely, even though the thermal conductibility of brake fluid eventually overheating and lead to a brake fading which is quite troublesome.
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