We had a sunny day in the high 50's and not wind so I put on my gear and took a ride. While the Tracer didn't offer the protection of the ST, it did provide a surprising amount. At 75mph the mesh jacket was just right and that tiny windshield put me in a protected pocket. I have a Madstad shield ordered and that can only make things better. My last nekkid bike was a XS650 and it seemed colder. Maybe that Glowbull warming is helping.