The heaviest torque loads in motorcycle assembly are large-diameter fasteners such as flywheel, primary-drive, and axle nuts. For these, a 1/2-inch torque wrench is good. Then, for general use, such as triple-clamp bolts and cylinder-head bolts and nuts, a 3/8-inch torque wrench suffices nicely. And for smaller fasteners, such as 6mm cam-cover and engine-case bolts, oil-filter cover bolts, and smaller fasteners, it’s no use putting on the gorilla suit and using a larger torque wrench. In fact, it can be an exercise in frustration (or even impossible) to calibrate it for lighter torque loads, and you might even wind up with snapped parts. The answer here is a 1/4-inch drive. Therefore, for motorcycle maintenance and repair, the ideal garage has three different torque wrenches with sockets or adapters to match. Here are good solutions in 1/4-, 3/8-, and 1/2-inch-drive sizes.