My prefix is not single
My infix is cold to hold
My postfix can mean my whole
I’m clean when I’m on the road
1 Answer
My guess is
BICYCLE
My prefix is not single
The prefix bi- means "two", so not single.
My infix is cold to hold
Icy means extremely cold.
My postfix can mean my whole
Cycle is a synonym for bicycle.
I’m clean when I’m on the road
The bicycle is a clean way of transportation.