In triathlon, where every watt and second count, cranksets play a vital role in optimizing power transfer and maintaining aerodynamic efficiency. The right crankset can help athletes sustain effort during long bike legs while preparing for the run segment with minimal fatigue.
Crank length and gearing are two crucial considerations. Many triathletes favor compact setups or mid-compact combinations like 52/36 or 50/34, which provide a balance between top speed and climb efficiency. Shorter crankarms, such as 165 mm or 160 mm, are increasingly common for reducing hip angle stress and improving cadence.
Top triathlon cranksets include:
- QO RACE Aero Crankset: Engineered for aerodynamic advantage, the QO RACE series offers options down to 160 mm in length, ideal for aggressive time trial positions. Its carbon construction and spider modularity allow customization for each rider’s cadence and torque preferences.
- SRAM Red DUB Crankset 2×12: Available in 165 mm and 160 mm lengths, this lightweight carbon crankset provides aerodynamic chainring options like 48/35 or 50/37. The DUB spindle improves stiffness while maintaining bottom bracket compatibility across frame types.
- ROTOR Aldhu Carbon: Designed for modular flexibility, the Aldhu crankset allows triathletes to switch between oval or round rings, 1x or 2x setups, and integrates seamlessly with ROTOR’s INpower and 2INpower power meter options.
- Campagnolo Super Record 12 Crankset: A top-tier option for triathletes who demand smooth shifting, low weight, and Italian craftsmanship. The 175 mm version is commonly seen on long-course bikes.
When selecting a triathlon crankset, it’s essential to match the component to your frame geometry, bottom bracket type, and personal fit. Pairing a lightweight crank with aero chainrings and integrated power meters can help fine-tune your race-day performance.