Assertion: mountain bike | /r/HasAspect | gear
Facets:
value: in order to work
type: PURPOSE
value: often
type: TEMPORAL
Source sentences:
text: Mountain bikes and hybrid bikes often have gears with a moderate relative difference of around 15%; this allows for a much larger gear range while having an acceptable step between gears.
text: In order to work on rough terrain, mountain bikes have several gears from which to choose.