Originally Posted by jim-bob
9 bikes in the house.
7 are up and running.
6 are single-cog.
2 have derailleurs.
2 are 3-speeds.
3 are fixed.
6 coast.
2 are 24".
4 are 26" (559).
1 is 26" (650c).
2 are 700c.
Is this one of them logic/brain teaser puzzles?