Sram Red 11 speed crankset with a Quark Power Meter. The cranks are 172.5mm, and the chainrings are a 55-42. We are also including 53-39 chainrings if you are not wanting to use the TT/Tri big chainrings. The cranks are carbon fiber. 130bcd. The power meter has a new battery installed and we tested that it indeed does connect up to a Garmin computer so it does work.