if i am traveling 70 MPH where should the reading on the tachometer be i have 26x13 --20 g roller weights
I have noticed it long before GPS's. I notice it when I drive 5 mph over the limit and people in cars are still trying to run over me. We have lawyers and a "get into the rich guy's pocket" legal system to thank for this phenomenon.Because the speedo's are set up to read faster than you are actually going. Why, no one really knows but it is common practice with motorcycles. Every one I have owned over 40+ years had a speedo that read faster than I was actually going. Most folks never noticed it until GPS came along and they started comparing the speed on the GPS to what the speedo said.