I don’t have figures to hand but you would be optimistic if a standard DPY with 60 years use puts out 25kW. I guess you are doing the A2 (restricted) licence so it is only restricted for 2 years anyway. my wife did hers recently and the best advice we got is that if you are not sure then go and get that particular bike run on a calibrated rolling road then you have paper proof that bike is within the 25kW limit.
Regards,
Richard
