low grip in what conditions? If you are riding on the pavement and there's no snow or ice, a slick tire gives the most traction, even if it's wet. You simply want the most rubber on the road you can get - and bicycle tires are so narrow and high pressure that you need speeds on the order of 90mph to get them to hydroplane. Motorcycle and car tires run at lower pressures and are wider, so the tread is there to let water evacuate, thus preventing hydroplaning. The tread patterns cut into bicycle street tires are marketing for people who don't understand that point.

You might want to go wider and at a lower pressure in the winter. Wider tires at a slightly lower pressure should still roll well and will give more grip. Our winters around here are really mild (rarely gets below freezing, even overnight) so I just use the same tires as the rest of the year.

JB