Tires, tecnique, or me?
OK, it has gotten to the point where it's getting downright scarry to ride, and I need to know if it's the tires, my riding tecnique, or if there's something else going on. Here's the layout...
I commute 25 miles each way from Kirkland to West Seattle every day. Of that 50 miles, a little over 36 of them are on grooved pavement and there are 3 bridges involved. I'm using the stock tires with about 5k miles on them. They're not showing much wear so far, but I do have Epic chicken strips and there seems to be only about 2" of road contact. The grooves in the pavement are about 1" wide on the top ridge and 1/2" wide in the grooves between them.
The wind buffetting has always been nasty, and I figure that's just a combination of ZOMGXBOXHUGE luggage and the oversized windshield that only comes up to my collar bone. My center of gravity is about the seat height, maybe a hair higher, but less than the top of the gas tank.
What I'm running into now, and it's seemed to be getting worse, is that the bike feels like it is trying to kick out from underneath me when I'm going around turns and swerves on the grooved pavement. The I-90 tunnel Eastbound is by far the worst, to the point where it's genuinly pushing terrifying. The only other place I used to get this kind of shimmying, shaking, and slipping was on the steel grate bridge further south.
It has been getting colder out, but no signs of ice or anything other than clear and dry on the roads. Riding in the rain across those isn't much worse than dry as long as it's been raining for a while. I usually don't even do the speed limit through the tunnels and such because I just feel like I'm going to lose it too easy.
So, is there something wrong with my tires (2" of contact on 1" ridges), my riding tecnique (I'm not doing something right), my massively horrible aerodynamics (Freight Train is BIG), or could there be something else going on that I'm not getting.
I know there are some Seattle-ites around, maybe they could pitch in with their observations of those stretches of roads. My route goes:
I405-S --> I90-E --> I5-S --> West Seattle Bridge
Reverse that on the way home.
OK, now you guys can post the obligitory "Man up" and "You're just a wuss" posts.