This like-new crankset is a take-off from an AG2R pro team TT bike sold at the end of the 2023 season. The 172.5mm crank arm length did not fit the bike's new owner. The chainrings are 58-46t but are easily swapped to your preferred combo. All technical details and support material can be found on the power2max website. Note that this model is powered by a CR2450 battery.