Ok boys the definitive rules are: Motorcycles to be based on Ducati 2 valve air cooled V-twin 600/620 built post 1992 and the maximum capacity allowed will be 675cc. All Motorcycles must conform with the construction and use regulations as set out by the ACU for motorcycle road racing. Chassis · Frames must be standard Ducati, but material may be added but not removed. Chassis based on Ducati Monster may have rear chop · Standard Ducati swing-arms must be used but these can be taken from any Ducati model. Material may be added but not removed. · Suspension, the rear shock may be changed. Front fork internals are free, externals should be applicable to the model to which they are fitted-externally adjustable forks are NOT allowed. · Brakes,any standard production Ducati discs and caliper(s) and any bar lever and master cylinder assembly may be used. Note: If using twin disks brake lines must be seperate below bottom fork clamp-construction and use regs. · Wheels to be standard Ducati production 17" diameter 3.5" front and 4.5" rear. · Non track essential road equipment may be removed. Fairings may be added. · Tyres must have a moulded road legal tread. · Wets are allowed. (Safety issue) · Tyre warmers are allowed. · Suspension linkage is free. · Oil catching undertray is required. This must hold 4 litres minimum. · Minimum weight is 150kg Engine · Overbores within the class capacity limit are allowed. · Compression limit to be 12 Bar · Valves, camshafts and cylinder head porting must be original and not modified. · Clutch and clutch operating system is free · Connecting rods and crank assembly must be standard and unmodified · Inlet manifolds, carburettors and fueling can be modified or changed. · Exhaust pipes and mufflers can be modified or changed · The Alternator must charge and electric start must work at the end of the race. · Fuel standard freely available unleaded road gasolene must be used. Thats it folks, there will be one class not 2 as I previously suggested since we will not be allowed to run 2 classes on the same grid. There are no big bore kits available for the 620 engines so an overbored 583 should be competitive. John |