The US Sensor has all the top of the line components. Trail design geometry, 100% cro-mo frame w/6mm plate drop outsCompact drive, 39T CNC chainring, ACS 14T FreewheelSST Orgy detangler (Front and Rear Brakes). 48h/14mm wheels w/double wall rims & Nirve Grindsheild hub set. Tioga Comp X tires. Forged axel pegs.