There aint many Track Bikes which don't run a 520 chain Jase. I run a 520 setup on the ZX10. You can choose your gearing if you buy a Renthal kit so I'd go with Scooby's recommendation of F15T & R43/44T
Love like the Van's licence plate! Good bit of advertising there for you Wedgie! Lovely looking bike, I've got to decide what do to with my old Blade - she's done well but somehow I think retirement and sell on my 750 K5 is way to go
Twin blades ha ha yeah agreed get a top notch chain and it will do you proud I got a DID vxmz or summat loads of letters ha ha