quad bike 
noun
A motorcycle with four large tyres, for off-road use.The boot space takes the luggage of a family of four, excluding quad bikes....
- We looked up and saw lads at the side of the ground revving up their quad bikes and motorcycles.
- There will also be quad bikes and a 4x4 off-road area where visitors can drive vehicles.
- expansion team
- expansive
- expansively
- expansiveness
- expansivity
- ex parte
- expat
- expatiate
- expatiation
- expatriate
- expatriation
- expatriatism
- expect
- expectable
- expectably
- expectance
- expectancy
- expectant
- expectant heir
- expectantly
- expectant right
- expectation
- expectational
- expectation value
- Expectation Week