Assertion: gear's number | /r/UsedFor | refer to the number of cogs
Facets:
value: in the rear of the drivetrain
type: LOCATION
value: on the cassette
type: LOCATION
Source sentences:
text: The one or two refers to the number of chainrings on the front of the drivetrain, while the second number (10 or 11) refers to the number of cogs on the cassette in the rear of the drivetrain.