spare wheel
Trunk-stored replacement tire
A spare wheel is an extra wheel kept in a vehicle for use when one of the regular wheels fails or goes flat.
Most cars carry a spare in the trunk.
Figuratively, a spare wheel is someone unnecessary or awkward in a social situation—a third wheel: I felt like a spare wheel on their date.
Also called a spare tire.
Deflated vehicle wheel
- punctureHole from penetration
- breakdownFailure or decomposition
- strandedLeft without means to leave
- roadsideAdjacent to pavement
tow truck · AAA · hazard lights · flares · jack · lug wrench · tire change · blowout
Lose strength or energy
- trunkMain stem or storage
- bootHigh shoe or startup
- jackDevice for lifting vehicles
- lug wrenchTool for tire bolts
rim · tread · valve stem · hubcap · donut · tire iron · tire pressure gauge · mounting bracket
Stored duplicate for recovery
- substituteReplacement for another
- reserveSupply kept back
- standbyReady substitute awaiting use
- fallbackAlternative if primary fails
replacement · contingency · auxiliary · secondary · alternative · bench player · understudy · backup plan
Pedal-powered two-wheeler
- inner tubeInflatable rubber torus
- pumpFluid-moving machine
- patch kitSupplies for mending holes
- spokesRods connecting hub to rim
hub · rim · tubeless · clincher · truing · quick release · panniers · touring
Exceeding what's needed
- surplusAmount exceeding requirement
- excessSurplus beyond need
- unnecessaryNot essential or required
- superfluousExceeding what suffices
unneeded · sidelined · overlooked · expendable · outsider
flat tire
Deflated vehicle wheel
roadside · tow truck · AAA · hazard lights · flares · jack · lug wrench · tire change · blowout · emergency kit
tire
Lose strength or energy
lug wrench · rim · tread · valve stem · hubcap · donut · tire iron · tire pressure gauge · mounting bracket · compartment
backup
Stored duplicate for recovery
- substituteReplacement for another
- reserveSupply kept back
- standbyReady substitute awaiting use
fallback · replacement · contingency · auxiliary · secondary · alternative · bench player · understudy · backup plan · insurance
bicycle
Pedal-powered two-wheeler
- inner tubeInflatable rubber torus
- pumpFluid-moving machine
- patch kitSupplies for mending holes
spokes · hub · rim · tubeless · clincher · truing · quick release · panniers · touring · bikepacking
redundant
Exceeding what's needed
- surplusAmount exceeding requirement
- excessSurplus beyond need
- unnecessaryNot essential or required
superfluous · unneeded · sidelined · overlooked · expendable · outsider
- spare partsbackup battery