I rode my 89 VR home last night, installed brand new Shinko 230 Tourmasters last weekend and then we had 5 straight days of rain, so no chance to scrub tires. Sun was out with some gathering thunderheads to the north, I was riding west.
Got just out of town when traveling up over a railroad overpass it started to rain, hardly any clouds above me, it was blowing sideways from the north, so any way here I am in a sudden downpour, I'm practically riding blind, got traffic behind me on a busy two lane hiway, I made it up to a gas station and took temporary refuge. rain passed away within minutes.
My first impression was that they handled remarkably well considering they were brand new and they still have their whiskers. I was running 36/38 tire pressure, front felt very well straight even on wet tar snakes, back only at one point felt a bit greasy when making a curve, in my blindness to get off highway I got on the brakes hard and they pulled me down very very well, better than any tire I have felt before and I had to make a slow sharp turn to avoid a guardrail in standing water and they just sliced right through.
A bit of a butt pucker factor with a bit too much bravado on my part to get back on my bike, so I do NOT recommend another person to do what I did, I was lucky, scrub the tires well before riding in wet weather. On the 85 GL1200 I will be yanking those Dunlops off and putting the exact same Shinkos on it as well, very nice tire for me who occasionally commutes, rarely two up, may get wet weather and needs an affordable tire with forgiving performance, I do not care at all about mileage, I have a 2009 Star XVS1300A and it has less than 1800 miles on it since I bought it brand new.