Well I bought a digital thermometer with a wired temp sensor that reads out in tenths of a degree for $10 at Wally World, and now I'm working on a bracket to mount it on the brake fluid reservoir with Velcro. I'm going to run the sensor wire beside the brake and throttle cables, and put the sensor right behind the air inlets so I'll be reading ambient air temp, not a higher temp due to the sun.
There may not be a great need for the thermometer, but we don't really even need the bikes, but we have them. I used to have a cruiser and wanted a clock and thermometer, but then held off when I knew I was selling it. This bike had the clock, so all I needed to do was add the thermometer.
I could see myself using it to figure out what gear I should wear depending on the temperature. If I'm too cool when using the mesh jacket when it's 65F, I can use that as a guideline on the next ride. If I'm too cool in the morning at 45F with the textile jacket with no insulated liner, then I know when to start using the liner. And if I'm riding within a few degrees of 32F, time to watch out. If I'm too hot at 95F with the mesh jacket, I'm screwed unless I want to go without the gear.
Riding a Wee Strom named "Layla"
Cee Bailey Windshield
Oxford heated handgrips
Crampbuster throttle control
Sears Top Box
Givi E21 Side Boxes