Probably referring to a type of spoke made by a company called DT. There's DT Champion, DT Competition and DT Revolution, in order of diameter. Revolution may also be a more elegant way of referring to something turning, with one revolution being one full turn.
If the bicycles belong to ONE FRIEND, it's "friend's bicycles." If the bicycles belong to TWO OR MORE FRIENDS, it's "friends' bicycles."
1.8 bicycles.
There is no specific collective noun for bicycles, in which case a noun suitable for the situation is used, for example a rack of bicycles, a row of bicycles, a standof bicycles, etc.
Judaism has not had "revolutions" since religions and ideologies cannot have revolutions.
Bicycles weren't invented in Canada.
what did the ancient bicycles look like?
More bicycles
Giant Bicycles was created in 1972.
Canyon Bicycles was created in 1985.
The population of Canyon Bicycles is 161.
GT Bicycles was created in 1979.
Bicycles Are for the Summer was created in 1984.