RM can offer you original quality  pickup roller/feed roller TIRE for use in riso RZ/EZ/CZ/MZ/GR/RP/FR/TR/CR/KS with good price
003-26306, 019-11810, 011-11821, 035-94302,

The following spare parts are available:
Screen Assy;
Metal Screen;
Feed Roller;
Gear;
Drum Body;
Drum Assy;
Driver Gear Assy;
Main Motor;
Rubber Roller, Pickup Rollers;
Drum Rail Roller;
Belt;
Pressure Roller;
Separation Pad;
Pawl;
Drum PCB;
Clutch;
Blocking Sheet;
Flange;
Pickup Roller for RISO RICOH DUPLO GESTETNER