The SRAM RED XPLR 1x Power Meter Spider DUB Crankset helps us improve our gravel riding skills by providing us with power measurements on each leg at a /- 1. 5% accuracy. Available in a 40t or 42t chainring, we are able to find the perfect match for our riding style, and the chainrings are even removable with the new thread mount design. The durable hollow carbon fiber crank arms are 29g lighter than the previous version, while the aluminum chainrings are exceptionally durable to keep up with our off-road adventures.