crankarms
Bicycle pedal attachments
Crankarms are the levers on a bicycle that connect the pedals to the chainring assembly.
The rider's legs push the pedals, which rotate the crankarms, which turn the gears.
Crankarm length affects leverage and pedaling efficiency—longer arms suit taller riders.
Also written as two words: I need to replace my crank arms.
Rotating rod for thread
- pedalFoot-operated lever
- chainringBicycle's front sprocket
- bottom bracketBicycle crank bearing assembly
- axleShaft for wheel rotation
spider · bolt · threads · taper · splines · washer · extractor · interface
Turning bike cranks
- cadenceRhythmic pulse or pattern
- strokeSudden brain blood blockage
- power transferShift of authority between parties
- drivetrainVehicle power transmission system
rotation · torque · downstroke · upstroke · dead spot · circles · efficiency · watts
Measure of extent
- millimetersMetric units, thousandths of meters
- offsetCompensate by opposing force
- weightMeasure of heaviness
- stiffnessResistance to deformation
carbon · aluminum · alloy · hollow · forged · machined · aero · BCD
Act of taking away
- installationProcess of putting in
- torque wrenchCalibrated tightening instrument
- preloadInstall in advance
- tighteningMaking less loose
creaking · loosening · stripping · threadlocker · greasing · extraction · replacement · compatibility
spindle
Rotating rod for thread
- pedalFoot-operated lever
- chainringBicycle's front sprocket
- bottom bracketBicycle crank bearing assembly
axle · spider · bolt · threads · taper · splines · washer · extractor · interface · bearing
pedaling
Turning bike cranks
- cadenceRhythmic pulse or pattern
- strokeSudden brain blood blockage
- power transferShift of authority between parties
drivetrain · rotation · torque · downstroke · upstroke · dead spot · circles · efficiency · watts · power meter
length
Measure of extent
- millimetersMetric units, thousandths of meters
- offsetCompensate by opposing force
- weightMeasure of heaviness
stiffness · carbon · aluminum · alloy · hollow · forged · machined · aero · BCD · clearance
removal
Act of taking away
- installationProcess of putting in
- torque wrenchCalibrated tightening instrument
- preloadInstall in advance
tightening · creaking · loosening · stripping · threadlocker · greasing · extraction · replacement · compatibility · wear