Thank you for the input regarding the brake setup, duly noted and I'll put it into practice in due course. Having got back home and looked at the bike again I've confirmed that there's must be an issue with how I've rebuilt the MC. With it filled with fluid and the lines being fully disconnected from the brake calliper it doesn't wish to push any fluid through it and the handle provides no resistance.
To confirm and as a short term fix I've ordered a replacement MC and will swap it out to confirm and see if I can't get the front brake fully operational.
Just been through this post - I like what you have done to the bike it looks really cool a nice mix of modern & classic DNA- the taped manifolds is this to help with heat dissipation? Nice sound on the video.
Lastly I like the B&W plates but as an ex-copper can't see why you think they are legal unless you motor was first registered before January 1973.
Thank you very much, its really nice to hear this as its always my goal whenever I rebuild classic machinery

In theory it should help with the heat, however I'll be honest, I've always just loved the aesthetic and really didn't want to have chromed/stainless pipes that scream steal your attention. As you'll have seen I have tried to really tone down the 70's chromed look. I quite like the slightly more subdued modern/retro aesthetic. I'll unusually confess that like this it is a bit too loud though...
As has been mentioned its now perfectly legal being historic vehicle class

I've gone for the smallest legal plate and font sizes so that its not an eyesore bolted on like the OEM setup, its basically the same width as the rear mudguard. It certainly helps with the look imo.
In other news I'm still battling with the exhaust fitment, so much for bolt on parts! With everything loosened back off I can get the silencer and collector connected and tensioned up however it feels somewhat stressed and they want to be at different angles to each other.
Not withstanding this, the rear centre stand rubber stop which comes with the exhaust hanger is situated too far rearwards and therefore does not stop it as intended. Having spent a few hours messing with it, something doesn't add up. I've contacted Delkevic however I'm now wondering whether I've been supplied with the wrong securing bracket? and/or the collector is a dodgy one and not been formed correctly.
While I've contacted Delkevic to request assistance however I'd be grateful of anyone else's experience with this system? I presume the rear footpeg mounting hole on the frame didn't alter between the years and revisions of the 550?
Some more photos for context:
Exhaust fully connected and fitted, however slightly stressed due to the stretch and exhaust header pipes now much further outside of the collector pipe:
IMG_2147 by
Mark Woodrow, on Flickr
IMG_2153 by
Mark Woodrow, on Flickr
IMG_2148 by
Mark Woodrow, on Flickr
Exhaust hanger fitment:
IMG_2155 by
Mark Woodrow, on Flickr
You can see the slight misalignment of the collector pipe and silencer here, as you can imagine this will get worse as the silencer is fitted due to its fixed hanger point meaning it has to turn rather than slide as would be ideal:
IMG_2156 by
Mark Woodrow, on Flickr