New Moto Guzzi Door Mats Available Now
It needs to have one like this:http://www.mgcycle.com/index.php?main_page=product_info&cPath=135_136&products_id=981The big barrel slides onto the T shaped nipple.
The 850-T used a different cable and special "barrel" end fitting. It looks like you have the correct cable but need the special "barrel". Maybe check with Harpers? Edit: I think this might be it:https://www.harpermoto.com/cable-end-17094801.htmlLuthier: the cable you show won't work. Notice there's no slot in the lever for the cable.