Well, in California I would probably als not use any heated grips - don't you have summer for 12 months 
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Well, I live in Auburn, CA and here in Reno, NV. Reno is 100 miles/161 km NE of Auburn. But a large difference in the winter weather. It is 39(°F or °C) right now here in Reno but is 62°F/17°C in Auburn.
Summer weather is about the same hot temps at each place. Often over 100°F / 38°C.
So for here in Reno, I need all the cold weather stuff and a decent cold weather bike. My best cold weather bike is my Triumph Trophy SE with the heated seat, heat drips, traction control and ABS for possible ice on the road. And can adjust the windshield as I am riding.
Electric bikes are lousy in cold weather, so I ride mostly my ICE bikes this time of year when in Reno. I will still ride electric in the Auburn area, but I have only my Zero DS in Auburn with the smaller battery for now.
-Don- Reno, NV
