Hi all. I've had a strange squeeling noise occur on my s1. It happened Friday when leaving work. Driving off at 10mph,it started to make a squeeling noise,quite loud. Did this for half a mile so I stopped to take a look. Nothing untoward.. pulled off,didn't do it again all journey. Took it out yesterday,no noise. Went out this morning,noise it back. Seems hub speed related,and still does it if you press the brake. Any ideas guys??