Shimano Trekking FC-T521 Octalink Crank Set 3x10-speed 48-36-26 teeth black

The crankset FC-T521 with 3x10-speed graduation corresponds qualitatively to the premium trekking product line SHIMANO DEORE XT and DEORE LX and is equipped with an OCTALINK spacer and with an integrated chain guard. The Shimano Trekking FC-T521 crankset creates the basis for user-friendly, accurate and easy shifting operations on trekking bikes of various designs. The HOLLOWTECH design makes it stable and lightweight. The integrated chain guard design is unobtrusive but effective.

HOLLOWTECH
Hollowtech cranks are hollow forged cranks. Lightweight cranks reduce the overall weight of the bike and especially the rotating mass, which is crucial for acceleration. The challenge is to reduce the weight of the crank without compromising stability and load capacity. SHIMANO's state-of-the-art forging technology offers an ideal solution with the HOLLOWTECH crank. Just like a high-quality frame tube, the hollow-arm crank is enormously stable and resilient at very low weight.

Octalink
Compared with the power transmission of OCTALINK with conventional square-butted spindle, the 8-tooth contact surface of OCTALINK, which connects the bottom bracket and the crankset, increases the load capacity and rigidity of the entire assembly.

HG-X chain
The directional 10-speed HG-X chain shifts smoother, saves weight and increases overall system performance. HG-X chain with directional linkage: The outer side is optimized for front shifting, the inner for rear.