When road ends become starting points, and terrain is no longer a limitation but an invitation, the Shimano GRX FC-RX600 1x Crankset (170mm, 40T) emerges as the mechanical heart of your gravel rig. Designed from the ground up for gravel riding, this 1x front chainwheel offers the perfect blend of simplicity, reliability, and specialized performance for the most adventurous riders.

At its core lies a single 40-tooth chainring, optimized for the unique cadence and torque demands of gravel cycling. This configuration eliminates the complexity of a front derailleur, ensuring fewer mechanical worries and faster, smoother gear shifts when it matters most. Whether you're navigating rolling terrain, tackling loose dirt climbs, or sprinting through fire roads, this gear ratio balances speed and climbing efficiency in one powerful setup.

The 170mm crank arm length provides an ideal balance of comfort and leverage, particularly for riders with a preference for quicker cadence and more ground clearance on technical or rocky routes. Shorter crank arms reduce pedal strikes on rough terrain and are kinder to knees during long, grinding climbs—a subtle but critical advantage for endurance rides and bikepacking expeditions.

Shimano’s 2-piece Hollowtech II construction anchors this crankset with proven stiffness and responsiveness. The forged alloy crank arms ensure exceptional power transfer while minimizing weight, making it durable enough for relentless off-road conditions without compromising pedaling efficiency. Built to integrate seamlessly with Shimano’s 11-speed rear systems, the FC-RX600 delivers perfect chain retention and silent drivetrain engagement even over choppy, uneven surfaces.

In typical GRX fashion, every design decision reflects gravel specificity. The wider chainline accommodates modern frame geometries and fatter tires, while its 1x configuration simplifies drivetrain maintenance and enhances mud shedding. This crankset doesn’t just survive off-road conditions—it thrives in them, providing stability and confidence across dirt, gravel, roots, and everything in between.

Packaged individually (IND.PACK) and sold without bottom bracket parts, it offers the freedom to match with compatible Hollowtech II bottom brackets based on your frame requirements. Whether you’re building up a bikepacking dream machine, upgrading your gravel race setup, or transitioning from road to adventure riding, the RX600 1x crankset delivers what matters most—control, simplicity, and the freedom to ride anywhere.

The FC-RX600 1x 40T crankset isn’t an adaptation of road equipment—it’s purpose-built for those who venture beyond smooth tarmac. With Shimano’s legendary precision and a design ethos born from off-road experience, it empowers riders to challenge new boundaries, explore unknown paths, and trust their drivetrain to deliver—mile after gravel mile.