What are good tips for down shifting a motorcycle?

It is okay and appropriate to use the downshifting of a motorcycle to help slow you down before a stop. This will let the engine take some of the work off your brakes. Be sure to shift at the appropriate RPMs, much as you would for upshifting. Downshifting will help ensure your engine isn't having to 'lug' along, but run at an RPM that keeps it smooth and strong with torque readily available as needed. When your engine begins to "lug" or the bike begins to "lurch", you know it is time to downshift. Many owner's manuals have suggestions for upshift points and downshift points. They are often conservative points/speeds for shifting - use good judgment and keep an eye on the tach (if you have one) or a good ear on the engine speed. If it whines, upshift. Hope this helps.