These flywheel weights will fit GG Pro 250/280/300cc model with the HIDRIA ignition.
They change the power delivery making the bike smoother and more controllable ‘off the bottom’. They will help the bike grip better and help stalling. They come with a ignition cover spacer,gasket and longer ignition cover bolts.
Flywheel weight for Gas Gas (Hidria 2013) >
Quick installation. Don’t need to remove the flyweel