The mechanism is the same in both US and metric clusters. Only the mask is different. The odometer will still register kms, but that can be taken care of at a dealer if it bothers you. It's still accurately tracking mileage, it's not like when you change gears or tire sizes (that throws off the speed, which throws off the mileage accuracy). Maybe someone has a mask that they didn't destroy removing to change to a custom one, or if you want to go with an LED color other than white it would be a perfect opportunity to buy a new one from Black Cat Custom. You're looking at a buck fifteen for one of those, and you'd pay that or close to it for a used cluster with a stock face.