Keep every ride flexible, fast, and fun with Tern's Joe C21. The sturdy aluminum frame uses Tern's Four-Bar Linkage frame joint for total security and minimal flex. Like all Tern bikes, the C21 folds quickly and easily for even more convenience and portability. Twenty-one hill-topping gears are at the ready to get you and your daily essentials across town and over hill and dale. Microshift components shift fast and smooth for sure-firing control on your travels. The 26-inch wheels feature light yet sturdy aluminum rims and a pair of Schwalbe tires for high-mileage urban flat protection. And, even in the midst of stop-and-go urabn traffic you'll remain in control thanks to the powerful linear-pull brakes. And, since rider comfort is super important, the Joe C21 is equipped with ergonomic BioLogic grips and a plush, supportive Sport saddle.