The Shimano Chainring 34T-MS Dura-Ace is a premium replacement or upgrade chainring designed for riders who demand the very best in shifting performance and efficiency. Built for Shimano’s top-tier Dura-Ace road groupset, this 34-tooth inner ring is ideal for compact or semi-compact crank configurations, giving you smoother climbing gears and a more comfortable cadence on steep gradients. Its precisely machined tooth profile is optimized for crisp, fast front shifting, helping the chain move cleanly between rings under load, whether you’re sprinting, climbing, or rolling along at tempo.
Engineered from high-quality materials and finished to Shimano’s exacting standards, this Dura-Ace chainring balances stiffness, durability, and low weight. The MS (Mid-Shift) tooth design is tailored to work seamlessly with matching outer rings and modern 11- or 12-speed road drivetrains from Shimano, ensuring quiet operation and reliable chain retention. Perfect for performance-focused road cyclists, racers, and serious enthusiasts, the Shimano Chainring 34T-MS Dura-Ace is an excellent choice when refreshing a worn drivetrain or fine-tuning your gearing for hilly routes and long endurance rides.