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In 1992, K&R opened its business with a new technologically advanced series of delay boxes that would revolutionize drag racing electronics. As racers and engineers, we saw a need for a more sophisticated delay box. One box that could do multiple tasks; be easily set even while wearing gloves; have large “backlit” displays that could be easily read (day or night); having the ability to take two “hits” at the tree; having a safety transbrake lockout feature; and even incorporating a built-in timer that could be used for throttle stop control, nitrous, etc. It was a success, and accomplished in one devise, without the need to connect a multitude of “boxes”. Since its early debut, K&R has continued to develop and add many more beneficial features while also being able to package the unit much smaller; hence the development of the PRO-CUBE. K&R is proud to hold the U.S. Patents 5,839,419 and 5,855,196 for the Pro-Stage starting line control system, which is incorporated into every PRO-CUBE delay box.

Over the years K&R has added other quality products that compliment the serious racers’ needs. K&R is committed to maintaining high standards and quality control by designing, manufacturing and testing all it’s products in house along with carrying other top quality products. So confident in all our electronic components, we have backed them with a full 2-year warranty.