| Hi Clive, sorry i'm being slower than normal!!! didn't sus who you were.
Craig has one of the kits in stock (if he hasn't sold it yet) so next time you're in i'll put it together for you to have a look at.
There are two types / styles of 57mm system, the early one didn't fit past one of the frame mounts so you either had to cut the frame mount off or (as termi suggested: put a dent in the pipe to miss it!)
The later type has wider, flatter (fatter) mid pipe that fits. i'll show you both types when your in. or give me a call and i'll email you some pics.
Glad brands was fun.
Got the pic of the bike, looks mega! thanks for the MR graphic on the belly pan too. | 
wilf
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