Whilst driving last night, I was coming down a road cars parked on both sides, a couple of cars ahead of me and some cars coming towards me, hence a bit of squeezing through. I then noticed the cars ahead of me (about 50m) overtake a cyclist. The road in front of me was now clear, i.e. no oncoming traffic, so coming up to the cyclist I gave him plenty of room as I prepared to overtake, about 200m down the road a car turns into the road and starts to head towards me. I then realised the cyclist was going a lot faster than I had anticipated; the road was a slight downhill gradient so he was probably doing 22-25mph. I was probably only going 5mph faster than him. Hence me putting a bit of a squirt on to make sure I can pull in in-front of him at a safe distance. Did think if I was the cyclist I wouldn't have been too happy but in my defence when I started the overtake the road ahead was clear!