A Canberra man allegedly caught 18 times on speed cameras racing his high-powered motorcycle has had 63 charges against him dropped.

On 18 occasions over a one-month period a high-powered black Honda motorbike was captured on speed cameras travelling at up to 196 kilometres per hour.

In all cases the motorbike had no rear number plate and on several occasions the rider made a rude gesture at the camera as he sped past.

Unemployed 33-year-old Steven Kitanovic was accused of those offences, as well as being in a police chase and participating in a road race near Woden Town Centre.

Today Kitanovic's lawyer told Magistrate Lorraine Walker that there were five other black bikes of the same make and model registered in the ACT at the time and that the speeding bike could have been any of those.