6-Speed Overdrive Super Kit

Designed to turn stock 5-speed transmission into a 6-speed; Reduces vibration that creates wear; Creates a more relaxing cruising speed; All gear sets use 2.94:1 close-ratio 1st gear that widens bike’s speed range in 1st gear and lessens the rpm drop when shifting into second; Overdrive 6th gear (.86:1 ratio) lowers engine rpm by almost 475 at 75 mph; Gaskets and seals included; Made in the U.S.A.; Requires speedometer sensor block-off plate kit; if speedometer is not driven from transmission, then two block-off plates kits are required.; Trap door extends 3/8″ farther to right than stock part. Alteration to some parts that attach to or around the trap door may be required.; Requires speedometer be recalibrated.