Built from our proprietary A.C.E. steel tubing, the Nature Cross Single Speed is lighter, faster, and stiffer than any other single-speed steel steed out there. For speed and agility from start to finish, look no further. Painstakingly crafted from our proprietary heat-treated, air-hardened, and custom-extruded A.C.E. steel tubing, there’s nothing else like it on Earth. Boasting clearance for 700c x 42mm tires for bomb-proof durability and performance.Designed for stability on uneven and slippery surfaces, this gorgeous carbon fork with adjustable rake accommodates 12mm thru-axles and flat-mount disc brakes.