Serious mountain bikers, check out these e*thirteen XCX Race carbon crank arms - they're seriously lightweight but don't compromise on strength at all! The construction uses compression molded carbon fiber crankarms with a 73mm aluminum P3 Connect spindle, which saves significant weight while maintaining durability. The smart design places the spindle on the non-drive side, making chainguide setup and drivetrain maintenance so much easier. They're compatible with multiple bottom bracket standards including 68/73mm threaded BSA, PF30, BB30, and BB92. The Quick Connect lockring and Adaptive Preload Adjuster make chainring installation straightforward. They're designed to work with e*thirteen's ultra-lightweight UL Guidering (30-42t) for maximum weight savings. The specs are impressive - 175mm crank length, 9/16\ pedal spindle, weighing only 385 grams, and compatible with 11 and 12 speed drivetrains and 135/142 MTB hubs or 141/148 Boost hubs. The black color looks sleek and professional. These are specifically intended for mountain biking use and deliver that high-performance edge serious riders look for. While they don't include chainrings or bottom bracket, when paired with the right components, they create an incredibly efficient and responsive drivetrain. Whether you're building up a new bike or upgrading your current setup, these carbon crank arms offer that perfect blend of lightweight performance and rugged durability that can handle tough trail conditions.
Free 30-day returns 
Free 30-day returns
