Kit engine head Aprilia SX 125 Rotax 122

The Testa + Base Dome kit produced by HTM Racing is a Accessory Indispensable for the strengthening of Aprilia RS 125, Aprilia RX 125, Aprilia MX 125 And Aprilia SX 125 Of all the last 10 years of production.

The Kit includes:
— Hemispheric Head Dome
— Base
— Cylinder base Gaskets in various calibrated thicknesses for squish adjustment
— Head Seals, high-strength silicone O-Rings

By Assembling This kit The bike can achieve high performance that is otherwise precluding the engine; This result is achieved by two important reasons.
The first fundamental feature is the restoration of the cylinder distribution diagram exactly as on the models Sport Production Who run the Italian Cup. In fact, the transfer and unloading lights of 1, 5 mm Are raised using a base and suitable gaskets supplied in the kit; This change in the diagram may well imply that the respiration of the series thermal group is stifled.
The second and not insignificant peculiarity is the adoption of the high performance HTM Racing headboard specifically machined to engage in the cylinder and restore the compression that would otherwise be lost by raising the thermal group.

The characteristics of the head Are listed below:
1) cast in precious aluminium with high silicon content and thermally treated to maximize heat exchange and resistance.
2) The exclusive design and sturdy construction make it extremely rigid to prevent the effect of buffering. This phenomenon, which afflicts the head as a series, is an imperceptible bulge at every double that produces a loss of energy.
3) Specially sized for the adoption of the sideboard, it is sturdy and does not break down.
4) The heat exchange surface is greater by virtue of the external fining of the dome which allows a better cooling of the motor to the advantage of reliability and constancy of performance; This peculiarity combined with the realization of the dome in high-quality silicon aluminium prevents the classic decrease in performance of the superheated engine.
5) The hemispheric conformation with candle to re-enter the center and the share of squish redefined are the fruit of years of experience in the Italian Cup.
6) The Head is also available in the Black Edition version obtained by means of a special black oxidation treatment that enhances the heat exchange and resistance characteristics.