FIELD: transport. SUBSTANCE: bicycle MAXIM-2 has frame 1 with handlebar 2 in front fork and smaller diameter wheel 3, saddle 4 in seat tube and wheel 5 with at least one driven sprocket connected by chain with pedal-and-crank drive 7. Frame 1 has bottom bracket arranged above straight line passing through wheel axles. Length of cranks is increased by value greater than that of positive sag. Mounted on flange of right-hand crank is ring with fixing holes in radial slots for setting toothed sectors in position providing arrangement of sector tooth "racks" on circumference corresponding to arrangement of teeth of sprocket with number of teeth Z=51,70 or 89. EFFECT: possibility of regulation of bicycles, improved speed characteristics and facilitated pedalling. 4 dwg
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