What Modelkit parts where used for the Y-Wing helmet Greeblies

[ywingfighter]

Hi,
in the new star wars costumes book are very nice pictures of Rebel Pilot helmets and I had identified a few parts but what was used for this helmet?

It looks to me that the part in the circle are from a Motorbike but which one? Any ideas what Modelkit parts where used?
Many thanks

 

[thawn_es]

the motorbike part is from tamiya 1/6 yamaha midnight special

 

[ywingfighter]

the motorbike part is from tamiya 1/6 yamaha midnight special

Good idea and if I study the instruction of the kit I think hey that it is.But if I look at the pictures in the book you can see that the part on helmet 1 is larger than on helmet 2 which used the Tamiya part from the left side.

 

[Guy Cowen]

I think these are becoming my fav helmets of the trilogy