A shift control device in a saddle-ride-type vehicle includes a lost motion mechanism and a locking mechanism. In some embodiments, the at least one virtual agent is programmed to: analyze first input provided by a first user during a multiparty conversation; analyze second input provided by a second user during the multiparty conversation, the second user being different from the first user; and use the first and second inputs to formulate at least one task to be performed by the virtual agent. The variable modulus interpolator includes an Nth order sigma-delta modulator having N sigma-delta stages cascaded in MASH configuration, where N is an integer greater than one, and is responsive to a selectable value of a numerator and a selectable value of a denominator of the fractional part of the rational number for outputting the varying digital code. Finally, a back panel is to be attached to the backside of the panel so that different photos can be easily inserted into and removed from the panel without applying any glue.