Continental Trail King: Revised last season, the tread patterns aren't all that different visually but, they have been tweaked, and the sidewalls have been completely changed. That, along with other updates in the construction of the tire gives the tire better grip and increased trail feel - a positive departure from what many people would agree was a notoriously stiff and difficult to ride tire in years past. Still with their famous Black Chili rubber, in 29 and 27.5 inch sizes and 2.2, 2.4 and 2.6-inch casings.