r/Bikeporn • u/FeelingDelivery6888 • 1h ago
Road A Big Raven: Size 61 Cervelo S5
This Cervélo S5 road bike features a build configuration quite common in China: the original Shimano Dura-Ace hollow aluminum crankset has been replaced with a carbon fiber crankset paired with a spider-based power meter—a setup that ensures accurate power measurement while reducing the overall system weight.
Full build specifications:
Frame: 2026 Cervélo S5, size 61
Handlebars: HB19 integrated cockpit (400mm width, 100mm stem length)
Bar tape: Lightweight (white)
Wheelset: Scope Artech 8T
Groupset: Shimano Dura-Ace R9270 (excluding crankset)
Crankset: SRAM RED E1 (170mm) with SIGEYI SL power meter and Shimano Dura-Ace 54/40T chainrings
Saddle: S-Works Power (143mm)
Tires: Continental GP5000 with 100mm TPU inner tubes
Pedals: TIME XPRO 12
Accessories: ELITE carbon fiber bottle cages, ROC titanium computer mount, Garmin Edge 1050
Total bike weight: 7.3 kg
(As an aside, I had hoped that the aerodynamic advantages of this bike would help me hit an average speed of 40 km/h for the first time. Unfortunately, that didn’t happen—my first ride resulted in an average speed of 38.9 km/h with an average power output of 315 watts. It looks like I still have some work to do!)