Head I-Speed 4.0 Ultegra Di2 Size:52 this is a saddle that

this is a saddle that refuses to compromise

Rear rim size

Thanks to the use of USB ceramic bearings

0 Aero SL is made from superlight HM (high modulus) carbon fiber to ensure precise steering in a lightweight model suitable for racing

Nota: è necessario l’utilizzo di viteria e adattatori a parte

Head I-Speed 4.0 Ultegra Di2 Size:52 this is a saddle thatHEAD I Speed 4. 0 The Pinnacle of Road Performance No compromises. Just pure speed. The HEAD I Speed 4. 0 represents the cutting edge of modern cycling technology. Designed for competitors and those who see cycling as a constant challenge against the clock, this bike combines the best of ultra high modulus carbon with Shimanos most advanced electronic shifting system. Carbonio TPR Ultra Light & Integrated Design The Carbonio TPR frame of the 4. 0