Why didn't Sirius need his motorbike anymore?

[Renee]

No: HPFGUIDX 157715

--- In HPforGrownups at yahoogroups.com, Pamela Rosen <pam_rosen at ...> wrote:
>
> 
> Eddie <harryp at ...> wrote:          
> In PoA, Chapter "Marauder's Map", Hagrid says that Sirius Black
> lent/gave Hagrid his motorbike and said he (Sirius) wouldn't need any
> anymore.
> 
> Why?
> 
>   Pam:
>   My thought on this was that he knew his next stop (if Hagrid
didn't give him Baby Harry, which was why he went there in the first
place) was to go after Peter Pettigrew.  He knew that if he killed
Pettigrew, he would be going to Azkaban.  Ask it turned out of course,
he was half right. 

Renee:
The interesting thing is, that Sirius could perhaps have pulled the
kind of trick Wormtail did: change into his dog form and run before
the Aurors arrived. That he didn't even try *and* gave his motorbike
to Hagrid beforehand, suggests that he wanted to be arrested and put
to jail. He considered himself guilty of James's and Lily's deaths(`I
as good as killed them') and wanted to be punished. That he never even
tried to escape in his Animagus form before he saw Scabbers in the
Daily Prophet would be a very strange thing without this desire for
punishment.   

Pam:
 Of course, Sirius isn't thinking quite rationally at the moment; he
knew he'd be going to Azkaban but didn't quite work out what would
happen to the baby had Hagrid given Harry to him.  But we see even 12
years later, Sirius is still reckless and short-sighted, isn't he?

Renee:
I'm not entirely sure Sirius would have gone after Peter right away if
Hagrid had left Harry in his care. But without Harry, he decided to do
the only thing he still thought worth doing.