Shimano Ultegra R8100 12sp Chainset

<li>Optimal balance of stiffness, strength, weight and rotational performance</li><li>HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting</li><li>52-36 and 50-34 chainring options. 165, 170, 172.5, and 175 mm crank arm lengths.</li><li>Weight: 700g</li>