2026 Cervelo S5 FramesetFork Cervlo All Carbon, Bayonet S5 Fork Headset FSA SL IS2 1 1 8, 36 x 45 1 3 8, 36 x 45 Model Name S5 Frameset Sizes 48cm, 51cm, 54cm, 56cm, 58cm, 61cm 1 piece Handlebar Stem Cervlo HB19 Carbon Handlebar Sizing Size 48 36cm Size 51 38cm Size 54 40cm Size 56 40cm Size 58 40cm Size 61 40cm Stem Sizing Size 48 80mm Size 51 90mm Size 54 100mm Size 56 100mm Size 58 110mm Size 61 120mm Seatpost Cervlo SP34 Carbon Seatpost Sizing Size 48 0mm Size 51 0mm