No offence intended but driving a car in a cycle lane just isn't going to happen in reality is it?
Facts are simple. You turned across traffic. Yeah he shouldn't have been there, but that in itself is not negligence. You should have made sure the way was clear.
what you have to ask yourself is.... would a reasonable man expect a cycle to be in a cycle lane? Whether it be a scooter or a cyclist, you'd have still knocked them off. Scooters are not that much bigger than bikes.
Cyclist...you'd be 100% at fault.... scooter rider I still stand firm that you'd be found more at fault than 50%
Ask youself the question if someone parks illegally....and you bump their car, is it their fault for parking illegally? The answer is no, in every case. Negligence is a tricky thing to prove Fly, I'm not trying to be arsey about things I'm just telling you how an insurance company will see it, and a judge. I've got the benefit of almost 10 years worth of case law and litigation experience, and I've handled cases like yours.
You asked for opinions, and this is mine. If you do get a claim against you, and you need any free advice, I'll happily help you with a defence. Good luck chief.

03 R32 Pearl Blue....gone
00 Imola S3.....gone
52 Silver Anni derv no 1728...gone
53 Silver R32...gone
E46 BMW lasted 4 weeks. Turd would be an understatement.
Bought a house.
04 Ford Focus diesel :-(