Assertion: mountain bike | /r/HasAspect | anywhere from 7 to 27 speeds
Facets:
value: since the 1980s
type: TEMPORAL
Source sentences:
text: Since the 1980s, mountain bikes have had anywhere from 7 to 27 speeds, with 1 to 3 chain-rings on the crankset and 4 to 12 sprockets in the cogset.