When you're looking for the benefits of a heavier flywheel but don't want to replace the flywheel itself, pick up the Steahly Heavy Flywheel Weight for more momentum and faster riding right out of the gate. When you're looking for the benefits of a heavier flywheel but don't want to replace the flywheel itself, pick up the Steahly Heavy Flywheel Weight for more momentum and faster riding right out of the gate. If you find yourself disliking the need to wind up your engine, install a Stealhy Heavy Flywheel Weight to put your bike's power exactly where you want it.