Abstract: A saddle ride type vehicular dry clutch having passive clutch disc of co-axial fixed plane contact, used for seamlessly undertaking the drives from the drive bearing assembly, in which the drive bearing assembly includes a bearing body and an active disc, and the saddle ride type vehicular dry clutch comprises: a clutch device, including a drive axle body formed with a central through-hole, having non-planar guiding slide grooves and an axle body perimeter edge remote from the central through-hole; a passive clutch disc, having a contact surface and a friction drive surface, and assembly ports for assembling elastic components outside of the engage drive area; centrifugal rollers, accommodated within the non-planar guiding slide grooves; and the driven devices includes a drive disc, formed with radially symmetric drive snap ports; a clutch shell, having a tubular inner wall, a surrounding outer wall and a connection wall.