Here is the front and back of the radiator found in the Honda CX650E Eurosport, CX650C Custom, GL650 and GL700 motorcycles:
The 650 radiator is part number 19010-ME2-003. It looks similar to the radiator found in the CX500E Eurosport – part number 19110MC5000 – though notably the 650 radiator has a temperature sensor at the bottom, which is what you see the wires attached to in the image above. This sensor is for the electric fan which the 674cc bikes had.
Front:
At this stage I don’t have any dimensions or closer pics, if/when I get some I will add them!
If you’re looking for a replacement for your 650 radiator you cannot use the radiator from a single-spine-framed CX500, or at least not without modification – the top hose is centrally mounted on the 650 radiator where the single spine bikes have it mounted to the side.
Anybody fitted a GL500 rad to a GL650 as a replacement, or a 500E Sports to a 650E Eurosport?