Precision. Power. Progress. The Shimano ULTEGRA FC-R8100 crankset (50-34T, 175mm) isn't just another upgrade—it's a declaration that you're ready for faster, longer, and smarter rides. As the beating heart of Shimano's new 12-speed ULTEGRA drivetrain, this crankset blends years of innovation with the refined performance expected from riders chasing serious goals.

Crafted with Hollowtech II technology, the crank arms are engineered to be feather-light yet unbelievably stiff. This means that every ounce of energy you produce goes directly into your drivetrain. Whether you're launching from a standstill or grinding out the final stretch of a mountain ascent, the 175mm crank length offers longer leverage, perfect for riders who want smooth rotational force and efficient power delivery.

With its 50/34T chainring configuration, the FC-R8100 is all about versatility. Sprint through headwinds with the 50T outer ring or spin with ease up switchback climbs using the 34T inner ring. It’s the perfect combination for endurance riders, triathletes, and any cyclist who values a wide performance spectrum—from city streets to alpine passes.

But it’s not just about the gear ratio—it’s about how it all feels. Shimano's updated chainring profile is optimized for 12-speed drivetrains, giving you crisp, clean, and whisper-quiet front shifting no matter the terrain or the pressure on the pedals. Paired with a Di2 system or mechanical shifting, this crankset reacts instantly and confidently every time you call on it.

Finished in a sleek, matte dark tone with subtly embossed ULTEGRA branding, this crankset looks fast even when standing still. And the OEM packaging ensures you get maximum value—just the high-performance component you need, without the excess packaging waste or cost.

If you’re upgrading your drivetrain, building a race bike, or simply demanding the best from your equipment, the Shimano ULTEGRA FC-R8100 Crankset 175mm 50-34T is the tool to take your ride from excellent to elite.