Which cycling club is this?

Yes, I remember that quite clearly; hard to believe it was almost a quarter of a century ago! The whole thing was done as part of the video, filmed on the old Silvertown Way flyover*, now long demolished. There's no back projection used here, just a flatbed lorry with a perspex sided studio/stage so that bit where the band are running and climb up was done for real and not faked. While we're on screen for less than a minute it took most of the morning to film that part! The main problem was timing; we had to ride quite slowly at first to let the lorry catch up with us and on the first few takes we ran out of road too soon, reaching the point where the road starts to drop down to normal street level so you wouldn't get the proper view at the back. I might even have the copy of the video they gave to us after it was edited, in the back of a cupboard somewhere! Thanks for the link, that's much easier to find.
Either later that year or early the next some members were also involved in a advert for Pepsi or Coke on the back of this.
Hope this info is helpful.
All the best,
Bernard Taylor, Easterley R.C.

* a little bit about this here: http://www.royaldockstrust.org.uk/popup.htm towards the bottom of the page

https://www.youtube.com/watch?v=VFXheatfJ7E