Ready for blasting across mixed terrain conditions, this stunning model features a solid aluminium crankarm construction. This makes it ideal for pedalling over rock gardens, tree roots and debris as it's engineered to withstand even the most aggressive of riding conditions. Coming equipped with Shimano's Hollowtech II technology, this fantastic version provides the perfect balance of strength, weight and rotating performance, so you can enjoy maximum power transfer as you race for the podium. Lightweight 12 Speed MTB Crankset Powering you across every inch of the mountain, this sturdy component is also kitted out with a high-precision sealing in its bearing area. This increases its durability and longevity, so you can enjoy longer-lasting efficiency as you soar from the top of the hills to the forest floor. Weighing in at only 511g (approx), this superb model allows you to benefit from optimum balance without adding any unnecessary grams to your ride. Please Note: This product page is for the Crankset only, chainring sold separately. Technologies: Providing the best balance of stiffness, strength, weight and rotating performance. The concept of HOLLOWTECH II technology is focused on producing a superior crankset which will maximize a rider’s power transfer. The rigidity of the crankset ensures pedaling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances over which the rider needs to pedal more. Naturally, SHIMANO strove for the optimum balance between the conflicting needs of stiffness while producing a lightweight crank. HOLLOWTECH technology is an ultra-lightweight hollow crankarm created by SHIMANO with the company’s own proprietary forging technology that also maintains rigidity. The addition of HOLLOWTECH II technology integrates the bottom bracket axle with the right crankarm for more stiffness and a weight savings to achieve a high-dimensional balance. Its outboard bottom bracket bearing system provides better weight distribution and more pedaling stability, allowing for more efficient power transfer. The HOLLOWTECH II crankset has been developed by pursuing the optimum balance of stiffness & rotating performance in a lightweight and beautiful crankset design. High Precision Sealing Moreover, HOLLOWTECH II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.