Ritchey WCS Drop In Integrated Lower Headset Assembly IS42/30 CheckoutSpec= Race Pace They are designed to be

They are designed to be lightweight

Designed for use on round sweep pista type bars will not install on ergo drop bars

Bladed straight pull spokes are laced to high-end Infinity hub platform offering optimal spoke tension balance for improved stiffness and durability with only 1 spokes length for both wheels

Not compatible with Kiox 300 or Kiox 500 Mount Type Out Front

Stealth S1 Dotty rubber outsole Size 10

Ritchey WCS Drop In Integrated Lower Headset Assembly IS42/30 CheckoutSpec= Race Pace They are designed to beDrop in lower assmbly with crown race. 45 45 degree angular contact bearing Titanium coated for corrosion resistance Bearing Type Cartridge Color Gold Crown Race 30 S. H. I. S Lower IS42