Crapo help with my radial M/C
 

Had a awesome day at cadwell yesterday the bike ran perfectly, then loading it back in the van she fell over and the front brake radial ( Brembo) took a wack, it actuates the brake but then the lever will flop forwards.
Took the lever off today and the plunger had a small broken ring of metal around it, so how the hell do i get in to have a look? Bloody hope it can be fixed!

Help Please!!!

contact natty boy