Gunnar's Ruffian is made for building a smooth, fast singlespeed. This fine frame features nimble, race-capable geometry that lets you storm climbs and bomb descents, all the while enjoying the sweet ride quality of air-hardened steel tubing paired with 29-inch wheels. Plus, managing chain tension is a snap thanks to Paragon's stainless-steel dropouts that move the rear wheel and rear disc brake together, so rear wheel removal and alignment is a no-brainer. The Ruffian is designed around an 80mm fork and has room out back for tires up to 2.3 inches. Your riding buddies will be on their toes as they try to keep you in their sights.