I believe these are from a Honda CX500 circa 1980, however they may be from another similar bike.
Honda Cx500 Clocks Dash Speedometer Instrument Cluster
Honda CX500 CX 500 PC01 1978-On Fan Surround
Honda CX500 Rear Drive Differential
HONDA CX500 A/B COOLING FAN SURROUND
Honda CX500 C Custom Deluxe 78-81 Polished Exhaust 2-1 Reverse Cone Silencer
Honda CX500 A B Motorcycle Diff Differential Assembly
