Re: Tachometer ????
I had one of the ones like you see for cheap on ebay, it worked good for a while but the battery in it didn't even last one summer and after taking it apart to change the battery I found that the battery can't be changed in it, some of them are probably better than the one I had.
I wouldn't own another like the one I had, slow response and it didn't last long at all.
I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!