Combinable bicycle has five-way bottom bracket bearing housing with connecting sleeve to accommodate lower tube of front frame, and upwards extending hollow cylindrical lower saddle support tube located below upper support tube

摘要

The combinable bicycle has a front frame (10) with the steering gear and front wheel (15), and a rear frame (30) with a five-way bottom bracket bearing housing (31) which has a connecting sleeve (32) to accommodate the lower tube (11) of the front frame, and an upwards extending hollow cylindrical lower saddle support tube (36) located below an upper support tube (19). A saddle support (22) with a saddle (21) fits downwards into the upper saddle support tube and then into the lower support tube in order to connect the upper and lower saddle support tubes.