The Kossea Pioneer's aerodynamic design and comfortable geometry, combined with high-quality carbon fiber materials (T700/T800 for SL), deliver a lightweight yet stiff frame, ensuring superior speed, efficiency, and responsiveness for riders. The SL version offers a balanced blend of strength and weight, making it ideal for cycling enthusiasts. Frame: Kossea Pioneer SL Carbon 12×142mm thru-axle, Flat Mount Disc Fork: Kossea Pioneer SL Carbon 12×100mm thru-axle, Flat Mount Disc Shifter: Shimano 105 R7150 12-speed Front derailleur: Shimano 105 R7150 Di2,braze-on,2×12 speed Rear derailleur: Shimano105 R7150 Di2 12 speed Crank: Shimano 105 FC-R7100,50-34T Cassette: Shimano 105 CS-R7101,11-34T, 12-speed Chain: Shimano CN-M6100 Bottom Bracket: BB86 Brake: Shimano 105 R7170 Hydraulic Disc Brake Brake Rotor: Shimano RT10,Center Lock,160mm Wheelset: SCOM Voso Lite 50mm Carbon Wheels, tubeless ready Tire: Continental Grand Sport 700X28C Saddle: Selle Royal A86 road saddle Handlebars: Pvuu Stella1 Carbon Integrated Handlebar Seat Post: Bross Zenith aero carbon Seatpost, Di2-compatible Pedal: Excluding Weight: 8.4 kg in the L size