action-crank-arm

9 лет назад

Calvin Jones from Park Tool Company demonstrates how a crank puller works. They cut open a crank arm to show the inner workings of the tool and how it removes the arm from the spindle. The video provides a visual explanation of the process and encourages viewers to visit Park Tool's website for a full walkthrough of crank arm removal and installation.

2 года назад

This video introduces a unique bicycle crank designed for people who cannot fully extend their legs. The "swing crank" allows for a shorter crank length at the top of the pedal stroke, enabling riders to pedal comfortably despite limited leg extension. The video features a case study of a rider who benefited significantly from using the swing crank.