If you've ever modified a car with smaller or larger tires or, perhaps, a different final-drive gear, you've immediately screwed up your speedometer. This is, of course, annoying, but for modern cars ...

Whether you've got a new motorcycle or an old one, the time will eventually come when you need to get some work done. Maybe you've got a few aftermarket upgrades that you'd like to have installed, a ...

Your car once had a rock-steady speedometer needle, but now it’s wandering a bit — or a lot. Maybe it’s not indicating any speed or it’s showing 60 mph and you know that can’t be right. “An easy way ...

Sportbike How-To has recently released a motorcycle repair DVD set for the Yamaha R6. But don’t get put off by the specificity of the title, because the information on these DVDs can be used by owners ...

The handlebars of this Honda CL175 ended up being perfect for holding two Nixie tubes which serve as the speedometer. There are two circular cavities on the front fork tree which are the same size as ...