SY-STD : Standard Torque Disc Clutch / Disc Brake
SY-HTD : High Torque Disc Clutch / Disc Brake

SY-VDC : Ventilated Disc Clutch

SY-SDB : Spring Set Disc Brake

SY-WDB : Water Cooled Disc Brake

SY-CDB : Copper Cooled Disc Brake

SY-CSB : Copper Cooled Studded Brake