BICYCLE FRAME PROVIDED WITH A FLEXIBLE SEAT TUBE

摘要

The invention relates to a bicycle frame comprising a head tube (20), a crankset housing (26), a post for a seat (38), a rear wheel crank axle (32), a rigid frame (12): The inventive frame is characterised in that the rigid frame (12, 28) connects at least the head tube (20) to the crankset housing, the seat post comprises a bent seat tube (40) connected to the rigid frame (12, 28) and the trajectory of the seat (38) is generally horizontal with respect to the rigid frame (12) as a result of the seat tube (40) bending.