Brand new unused items. 2x WTB Nano 40mm Gravel bike/ Cyclocross tyres. Lightweight and fast rolling. Nano Light Fast Rolling. The Nano 40c is built for speed, and let’s just politely say it delivers. A 40mm, rounded profile and an elevated centerline provide enough volume for lower tyre pressures and a smoother ride while still reducing drag and rolling resistance. This makes for an all-out gravel destroyer that can still appease those clamouring for a truly big cyclocross tire. WTB and Wiggle think so. So does superhuman, beyond endurance athlete, Jay Petervary. Tubeless Compatible System (TCS). Tubeless Compatible System: Standards-driven system designed around tubeless bead shapes and hooks to create repeated sealant-based consistency between tire and rim. Dual DNA Rubber Compound. Dual DNA is the perfect mix of efficiency, traction and durability. The centerline tread features a firmer rubber compound that boasts faster rolling and increased durability, while the side knobs are composed of softer, slower-rebounding rubber that improves control and grip. A supple, gram-conscious carcass designed to be compliant and conform to trail objects while still providing a happy balance of low rotational weight and rugged reliability.