Crank arms Shimano SAINT FC-M820 170mm black 1x10-speed

Product technical specifications

TECHNOLOGIES

HOLLOWTECH II – 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. 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.

SHIMANO MODULAR CHAIN DEVICE – Is tough and efficient chain device. Rider can choose one half guard, two half guards,no guard according to course,usage. It has minimum bash guard for protecting chain and chain ring from impact. And replaceable silencer works less noise, easy focus on your riding. Moreover SHIMANO MODULAR CHAIN DEVICE ensures super stable and silent drivetrain with SHIMANO SHADOW RD+ rear derailleur.