B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
B62K11/00—Motorcycles, engine-assisted cycles or motor scooters with one or two wheels
B62K11/02—Frames
B62K11/04—Frames characterised by the engine being between front and rear wheels
B62K11/06—Frames characterised by the engine being between front and rear wheels the frame being of single-beam type
B62K11/08—Frames characterised by the engine being between front and rear wheels the frame being of single-beam type the beam being fabricated from sheet metal, e.g. forming fuel tank walls
B—PERFORMING OPERATIONS; TRANSPORTING
B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDECARS, FORECARS, OR THE LIKE
B62K3/00—Bicycles
B62K3/02—Frames
B62K3/10—Frames of single-beam type, i.e. connecting steering head to rear axle