high/low speed
a speed of 25 miles per hour
They came racing down the hill at top speed.
You should reduce speed as you approach a red light.
It was the speed at which it all happened that shocked me.
This electric drill has two speeds.
So we left at full speed!!! (Preliminary English Test; B1; Spanish)
I get a real thrill from speed.
He put on a sudden burst of speed.
Every summer I [do] watersports because I like water. I'm very good at swimming and I like the speed of some watersports. (First Certificate in English; B2; Greek)
The course should bring you up to speed with the latest techniques.
Apart [from] this you can keep yourself up to speed with what's happening around the world on various fronts. (International English Language Testing System; C1; Urdu)
She was exceeding the speed limit.
There are three ground rules you have to follow: stop at stop signs, don't exceed the speed limit and don't be in the way of other cars. (Certificate in Advanced English; C1; Swedish)