Bikes › Cervelo P SERIES 105 Mech - 54cm Image 1 of 3 Image 2 of 3 Image 3 of 3 Cervelo P SERIES 105 Mech - 54cm $5,300.00 History speaks for itself . The perfect Triathlon or TT bike . Add To Cart Added! History speaks for itself . The perfect Triathlon or TT bike .