I recently swapped my Shinko whitewalls for City Grips on the GTS. Here are a few observations, subjective only:
1. The City Grips seem to have a little more sidewall flex, giving a slightly softer ride.
2. Upright braking is much better with the City Grips. They just seem to "bite" better when I squeeze the levers.
3. The City Grips don't squirm as much on the highway.
4. The City Grips will "step out" when they hit a bump, wet paint stripe, or small stones when leaned over. The Shinkos did not do this. The Shinkos stayed "stuck down" on gravel, rough surfaces, and paint stripes when leaned over. This is at moderate speeds only; I'm not a lean and scrape type of rider any more, so the City Grips might be better in that regime.
5. With the City Grips, I now have the 30 mph wobble. Mild, and only noticeable with light pressure on the bars, but definitely there. There was no wobble with the Shinkos. Beats me why.
(Edited) 6. The City Grips need air more frequently, as well.
Overall, it was not a huge change mounting the City Grips. Some good, some bad. I'll keep the Shinkos in a cool, dry place and remount them when the City Grips are worn down.
My .02, and seat of the pants observations, only.
Last edited by 25BIKEZ on Sun May 12, 2019 11:26 am; edited 1 time in total