DT Swiss CRC 1400 Spline 45 Rear Wheel - 700 12 x 142mm Center-Lock HGR11 Black. CRC 1400 Spline wheels are ready to conquer the harshest conditions with convenience. Never mind if the conditions are windy muddy or rainy the CRC 1400 Spline is ready to conquer them all. The aero-optimized rim supports your high speeds on descents and on the hunt for your competitors no matter where the wind blows. The rim profile is tubeless ready allowing you to take advantage of the technology and simply and conveniently change the tires according to the prevailing conditions of the track. This will ensure you always find the sweet spot between traction and rolling resistance.