ACU Handbook
 

just had a quick look through will read it in more detail when I have my own copy

But its nice to see the Noise Regs are unchanged remaining at 105dB measured at 0.5M at an angle of 45 degrees, using 5500rpm for the 600cc V-twins

Also the Font sizes for the race numbers are also remaining as per last year so are the same as stated in the 2009 Desmo Due rule books