Adjustable wrenches get a bad reputation in bike shops because most of them aren't designed for bike work. The jaws slip, the adjustment mechanism loosens under load, and the head is too bulky to fit into tight spaces around headsets and bottom brackets. Park Tool's PAW-6 addresses these specific complaints with a design that actually works on bicycles.

The 6-inch size hits the sweet spot for most bike applications. It's compact enough to maneuver around cables and housing, but the jaws open to 24mm, which covers the vast majority of hex flats you'll encounter on a bike. The forged aluminum construction keeps weight reasonable for a shop tool that might end up in your travel kit, and the I-beam handle design adds rigidity without bulk. You're looking at a wrench that weighs about a third of what a comparable steel adjustable would weigh.

The real improvement is in the jaw design. Laser-etched size markings on the fixed jaw let you preset the opening before you get near the fastener, so you're not fumbling with adjustment while trying to hold something in place. The knurled thumb wheel stays put once you've dialed in your size, which eliminates the slop that makes cheap adjustables round off bolt heads. Parallel jaw faces maintain full contact with the flat surfaces they're gripping.... Read More