chain
chain /tʃeɪn/
(noun) a series of connected metal rings, used for pulling or fastening things; a length of chain used for a particular purpose
Example: Budget-priced hotel chains have made a huge impact in the industry


bike
bike /baɪk/
(noun) a bicycle
Example: I usually go to work by bike.


handlebar
handlebar /ˈhændlbɑːr/
(noun) a metal bar, with a handle at each end, that you use for controlling the direction in which a bicycle or motorcycle moves
Example:


saddle
saddle /ˈsædl/
(noun) a leather seat for a rider on a horse
Example:


front brake
front brake /frʌnt breɪk/

Example:


rear brake
rear brake /rɪə breɪk/

Example:


pedal
pedal /ˈpedl/
(noun) a flat bar on a machine such as a bicycle, car, etc. that you push down with your foot in order to make parts of the machine move or work
Example:


training wheel
training wheel /ˈtreɪnɪŋ wiːl/
are an additional wheel or wheels mounted parallel to the rear wheel of a bicycle that assist learners until they have developed a usable sense of balance on the bicycle.
Example:


kickstand
kickstand /ˈkɪkstænd/
(noun) a long straight piece of metal fixed to a bicycle or a motorbike, used to make the bike stand upright when the bike is not in use
Example:


valve
valve /vælv/
(noun) a device for controlling the flow of a liquid or gas, letting it move in one direction only
Example:


gears
gears /ɡɪr/
(noun) equipment in a vehicle that changes the relation between engine speed (or pedal speed on a bicycle) and the speed of the wheels moving forwards or backwards
Example: