The KooingTech bicess crank arm is a high-quality replacement part designed to upgrade your mountain or road bike. Constructed from durable aluminum alloy, this arm provides exceptional strength and stability for smooth pedaling and precise shifting.

Whether you're climbing steep terrain or navigating technical descents, the 170mm single speed left hand crank offers unparalleled performance. Its optimized design ensures a comfortable fit and optimal power transfer to your drivetrain.

The bicess crank arm is specifically designed with mountain biking in mind, featuring a square hole for smooth engagement of the chainrings. This allows for effortless shifting and controlled gear changes, perfect for navigating rocky trails or technical terrain.

Whether you're a seasoned cyclist or just starting out, this replacement part is an essential upgrade for any mountain bike. Its high-quality construction and precision engineering make it a great investment for anyone looking to take their riding to the next level.