Christopher Leigh Taber, 19, of Mount Direction, pleaded guilty to two counts of reckless driving and nine other traffic related charges.

Yesterday the Launceston Magistrates Court heard that Taber was caught by a police mobile radar travelling at 182km/h just south of the Batman Connector on June 10.

As the police car pulled over to call in the job the officers observed Taber coming back the other way at a similar speed.

Police prosecutor Brett Steele said officers identified Taber after viewing CCTV  from a local petrol station. 

The next day police travelling to see Taber observed him at the Bell Bay turnoff. 

As the police tried to stop him, Taber sped off, overtaking traffic across double continuous lines and hitting speeds up to 150km/h. The highway's speed limit is 100km/h.

At the time the bike, which police have been unable to locate after Taber gave it away, was  unregistered and the defendant was serving a court-ordered disqualification. 

On a separate occasion Taber told an officer he was a cage fighter and the kind of person who'd show up at the policeman's door with firearms to sort him out. 

This occurred in February as police tried to search him for evidence in relation to a car which had been set on fire by the road. 

As a result he was charged with threatening police. 

Taber also pleaded guilty to possessing a firearm unlicensed after police found an inoperable imitation rifle in his car and possessing two home-made silencers.

Lawyer James Oxley said his client had ``essentially been blinded by a love'' of motorcycles, however, he'd come to the ``strong view that bikes and him don't mix''.

Mr Oxley said Taber's cavalier attitude about offending ``had changed quite drastically'' after spending the last 40 days in Risdon Prison.

``He knows he's not bullet-proof . . . I think it's likely his attitude has changed,'' he said.

He said the firearm was only for ``decorative'' purposes and the silencers were being used as paperweights despite being deemed usable.

Magistrate Reg Marron adjourned sentencing  until August 6.