double-declutching
Manual transmission technique
Double-declutching is a driving technique used with manual transmissions that lack synchromesh, requiring the driver to shift into neutral and release the clutch before engaging the next gear.
The method matches engine speed to transmission speed, preventing gear grinding and damage.
Though largely unnecessary in modern synchronized transmissions, it remains essential for operating vintage cars, heavy trucks, and some racing vehicles.
He learned double-declutching on his grandfather's old lorry.
Enclosed system of cogs
- downshiftChange to lower gear
- heel-toeSequential foot-strike pattern
- synchromeshGear-matching transmission mechanism
- transmissionSending of information
RPM · footwork · pedal · engagement · neutral · sequential · manual · coordination
Not occurring together
- pre-warBefore a conflict
- restorationReturning something to condition
- MGAutomaker from Oxford
- TriumphBritish vehicle manufacturer
Austin-Healey · Jaguar · historical · patina · originality · marque · concours · authenticity
British freight vehicle
- HGVLarge freight truck
- truckingRoad-based freight shipping
- CDLCommercial driving license
- semi-truckCab with detachable cargo trailer
fleet · haulage · freight · long-haul · articulated · tractor-trailer · diesel
Assembling for unified action
- competitionStruggle for supremacy
- heel-and-toeSimultaneous brake-throttle pedal work
- downforceAir pressing vehicle earthward
- apexUppermost point or culmination
gearbox
Enclosed system of cogs
- downshiftChange to lower gear
- heel-toeSequential foot-strike pattern
- synchromeshGear-matching transmission mechanism
transmission · RPM · footwork · pedal · engagement · neutral · sequential · manual · coordination · timing
unsynchronized
Not occurring together
- pre-warBefore a conflict
- restorationReturning something to condition
- MGAutomaker from Oxford
Triumph · Austin-Healey · Jaguar · historical · patina · originality · marque · concours · authenticity
lorry
British freight vehicle
semi-truck · fleet · haulage · freight · long-haul · articulated · tractor-trailer · diesel
rallying
Assembling for unified action
- competitionStruggle for supremacy
- heel-and-toeSimultaneous brake-throttle pedal work
- downforceAir pressing vehicle earthward