1results about How to "Reduce internal resistance" patented technology

The utility model provides a kind of bicycle hub and bicycle, it is related to bicycle technical field, including axle core and the shell and tower base of being sleeved on axle core, wherein shell and tower base are formed with the installation cavity for assembling ratchet structure between, ratchet structure includes first ratchet piece, second ratchet piece and elastic piece, first ratchet piece and second ratchet piece are all sleeved on axle core, first limiting portion for being limited with first ratchet piece along the circumference is shaped in shell, second limiting portion for being limited with second ratchet piece along the circumference is shaped in tower base, elastic piece is located in the other side of second ratchet piece relative to first ratchet piece, to make first ratchet piece limit along the axial direction, second ratchet piece can reciprocate along the axial direction, so that the second helical tooth on the end face of second ratchet piece and the first helical tooth on the end face of first ratchet piece can be one-way engagement. To improve the problem that existing bicycle hub structure is easy to wear and tear and the number of parts is more.