RDM Billet Big Fin Head, on Sale!

Big Fins, Lots of cooling for lower temps and good looks.

Customize your combustion chamber height and piston diameter! ( deck offset is the same as running a thicker head gasket)

These heads are designed with scooter hybrids in mind, the existing billet head have the squish angle off by 10 degrees since they are designed for original pistons, choose the scooter piston option and your problem is solved.

bolt pattern fits standard, Minarelli vertical, and Piaggio cylinder patterns due to slightly slotted holes

Short term Presale, Save while you can! Heads begin shipping in just a week or two!