The term 'bicycle parts' refers to the components of a bicycle that are necessary for it to function properly. The three crossword solutions for this term are PEDALS (6 letters), gears (5 letters), and SPOKES (6 letters). PEDALS are the foot-operated levers that are used to propel the bicycle forward. Gears are the toothed wheels that are used to change the speed and torque of the bicycle. Finally, SPOKES are the thin metal rods that connect the hub of the wheel to the rim.