If your talking about a flywheel ,there is 2 versions that is produced ,non-pull start an for a pull start!Ok I looked up dynamite roto starts and pullstart and found some but it doesn't look like they come with the flywheel that engages the crankshaft do y'all know the specific name for that part
Non is more bigger in diameter ,a lot of fly wheels interchange ,Ofna makes a lot of clutch parts,
The fly wheel has a brass collet behind it ,that the fly wheel is tighten to!
I run a Hyper 21 ,I don't use the original composite carb.,I use the AE. 28 pro carb on it .which is all aluminium
an more easy to tune ,I feel that the composites leak air like a siff!