The Kona Ouroboros CR is a 2027 gravel bike.

The Ouroboros CR is a high performance carbon gravel bike built for rough terrain, ambitious bikepacking routes, and riders who expect more from a drop-bar bike. Whether you’re a gravel-loving mountain biker or a mountain-bike-loving gravel biker, the Ouroboros Carbon was made to get your attention. Its lightweight carbon frame is paired with fat tires, large rotors, mountain-bike-standard dropper compatibility, and a wide gear range to deliver real control and capability when the riding gets rowdy. Every part earns its place—and every dollar earns its share of shred. Hop on and let the journey unfold.

Specification

• Frame: Kona Carbon
• Fork: Fox AX32 GRIP damper/ 40mm travel / Tapered / 12x100mm
• Headset: FSA Orbit No.57E ZS44/ZS56
• Stem: Kona 31.8mm / Rise 6º / Length 48-52 50mm / 54-58 60mm
• Handlebar: Kona Gravel Dropbar 31.8mm / Width 48 440mm / 50 460mm / 52-54 480mm / 56 500mm / 58 520mm
• Grips: Kona Cork Tape
• Brake Levers: Shimano GRX 820
• Brake Calipers: Shimano GRX 820
• Front Brake Rotor: Shimano RT56 180mm 6B
• Rear Brake Rotor: Shimano RT56 180mm 6B
• Shifters: Shimano GRX 820
• Rear Derailleur: Shimano GRX 822
• Cassette: Shimano Deore M6200 10-51t 12spd
• Chain: Shimano Deore M6100
• Crankset: Shimano GRX 820 40t / Length 48-50 165mm / 52-54 170mm / 56-58 172.5mm
• Bottom Bracket: Shimano PF86.5
• Rims: WTB KOM Team i27 TCS CVX 29"
• Front Hub: Formula 12x100mm
• Rear Hub: Formula 12x142mm MS
• Spokes: Stainless 2.0mm Black
• Front Tire: WTB Resolute TCS Light 700x50mm
• Rear Tire: WTB Resolute TCS Light 700x50mm
• Seatpost: TranzX Dropper +RAD 31.6mm 125mm
• Seat Clamp: Kona Clamp 34.9mm
• Saddle: WTB Gravelier Steel Fusion Form
• Paint Color: Gloss Metallic Silver w/ Tonal Silver Decals