no it's not a speedo healer,and no it does nothing to your gearing.it is a gear indacator with a built in tre device! i fitted it saturday and all i can say is im very pleased with it,i have beed thinking of getting one for over a year?some people on here say they don't do alot and some say they do.all i really wanted was to make my throttle smoother at lower revs AND IT HAS 90% better now,and on setting 1=hard setting it has made my bike feel like it's on steriods,unreal!! on setting 2=softer can't realy feel much more pull but still a smoother throttle!i have a full akro system,bmc filter,power commander ect.so i don't no if my mods have helped but im loving this mod!!apart from fitting my brembo calipers this is the best mod i have ever fitted to a bike..i can't speak for gen 1 or gen 3 owner's but if you've got a 2nd gen 10 then buy one!!!!you wont regret it..:thumbsup:
