Join Date: May 2015
Location: Marietta, GA
Year/Make/Model: 2010 Kawasaki Voyager
IMO 28 psi is dangerously low for a front tire on the Voyager.
When I first got my Voyager, I had the front tire (the Kawi recommended Bridgestone) at 28 psi cold (which was just below 80° on the day in question) per the manual, and monitored with a Tire Pressure Monitoring System (TPMS). I was on the highway on a hot day (high 90s) and the front tire temp went up to nearly 150° F. Of course, as the tire temp rose, so did the pressure which topped out at about 38 psi. That's a 10 psi rise. That should never happen if a tire is properly inflated. That is a sure sign of under inflation. Now, I've ridden across the Mojave desert at midday pulling a trailer (different bike, though) in 120° - 123° and never got a tire temp above 130°. When that tire wore out, it had low tread on both sides of the middle, a sign of running at low pressure, even though I ran it at a higher pressure of ~34 psi after that day.
I currently run Michelin Commander 2s. 32 - 33 psi cold in the front, 36 - 38 psi in the rear. I personally think that running at 40 or more cold psi, especially in the front, is too much. I find that I get very even and very long wear if I keep the tire pressures where there is never a rise of more than 4 - 6 psi from cold to normal operating temp plus 1 psi for every 10°F between the cold and the operating temp.
RAM mount for TomTom Rider 400 (with anti theft module)
6000k LED Headlight & Spots; Kisan Headlight Modulator (works with LEDs),
__Brake Light Modulator, LED License Plate Holder
Dobeck EJK 3.0
Lucky Mirror Extenders
Misc. RAM Mounts for Cup Holder, SPOT, Phone, etc.
Chuckster BAK, Trailer Hitch and Cooler Rack
Wiring for Trailer
Ray's Throttle Mod
Things to do:
Drilling Baffle Plates (Maybe)
Paint HF Tag Along Trailer to Match Bike