`- 19.5mm deep, road racing/training rim based on the Aerohead rim with a wider footprint that allows for a more aerodynamic rim/tire combination when paired with a 23c tire \n- Hollow core aluminum with machined sidewalls for improved braking\n- US made A23 rims now feature a tubeless ready design. Combine that with the new 21mm wide Velotape kit VR-8002 and you have a foolproof Road and Cyclocross tubeless tire setup\n- Made in the USA