"Jerico: A type of manual transmission, designed so that most gear shifts can be accomplished without using the clutch (except for shifting into gear from a dead stop). It accomplishes this trick using "dog-ring" shifters and straight-cut gears that can be mated at different speeds without clashing (much). Very popular in Winston Cup and BGN for use on road courses, and finding increasing use as an all-purpose transmission allowing for gear changes on ovals when necessary (such as at Pocono)."