Adapter sleeve for use in bicycles, is provided for releasing handle bar for saving space and simultaneously making bicycle unsteerable, where adapter sleeve simulates setting of driving position by spring-loaded balls

摘要

The adapter sleeve is provided for releasing the handle bar for saving space and simultaneously making the bicycle unsteerable. The adapter sleeve simulates the setting of the driving position by spring-loaded balls or other spring elements. The change in operating conditions is secured by a lock.