Inertia Flywheel Power Booster Honda eSP 125/150 Yuminashi

Yuminashi cares for all details and has developed an inertia flywheel Power Boost to improve engine par on the models PCX 125cc and 150cc.

Engine par is a fundamental part of these models since they are very heavy models that lack aerodynamics.

These factors mean that the models PCX125, PCX150 and their brothers aren't scooters that easily achieve top speeds. This lead Yuminashi to develop the inertia flywheel.

The inertia adjustment is an understated improvement but one that will help your scooter achieve higher top speeds.

Installation of the inertia flywheel Power Booster:

• Remove the radiator and remove the fan on top of the flywheel with the 3 screws.
• Install the inertia POWER BOOSTER flywheel between the flywheel and the fan.
• You will need 3 larger screws (M6x25mm stainless) to install the POWER BOOSTER disk between the steering wheel and the fan that you will have to purchase separately.
• After this, you can install the radiator back on his normal position with the original bolts.

Attention*: To install the inertia flywheel Power Booster on 150cc PCX or SHI ABS models, ensure you install some washers between the radiator, otherwise the fan on top of your inertia flywheel POWER BOOSTER will touch the radiator and create damage!

*For 125cc this modification is not required.

NOTE: The inertia disc no longer bears the yuminashi logo and has become shiny because of the new protective zinc layer placed as a final layer to protect against oxidation.