Dropout: Dropouts are U-shaped notches located within the rear from the bike frame and the bottom finishes with the front fork legs. They supply a secure location for attaching and holding the wheels in position. Shock absorber: for bicycles with suspensions, a device that is part with the front fork https://juliuskuain.dreamyblogs.com/35339482/the-basic-principles-of-go-kart-fahren