A backrest-adjusting device for a bicycle is specially designed for persons who are handicapped or try to rectify the body, including a backrest adjusting set and a breast-support adjusting set for securing a rider on a bicycle stably by adjusting the position of the backrest and the waist pad and the torso supports according to the rider's body size. Then the rider can be protected from falling down to get wounded or injured, safely using the bicycle.

 
Web www.patentalert.com

< Human powered device with removable flywheel power unit

< Bicycle headset structure

> Sliding exercise apparatus and recreational device

> Abdominal exercise device and method

~ 00230