Assertion: bicycle's rider | /r/CapableOf | spin crank
Facets:
value: at 170 rpm
type: TEMPORAL
value: at more
type: DEGREE
value: at high speed
type: MANNER
Source sentences:
text: Descending any significant gradient is more difficult as the rider must spin the cranks at high speed (sometimes at 170 rpm or more), or use the brakes to slow down.