Piston Pro Race (66.38)

Piston Pro Race (66.38)

The Vertex pistons are manufactured entirely in Italy and are the number one pistons for many European manufacturers of motorcycles and go-karts, especially KTM. Vertexoffers all experts in motor sports technically innovative and high qualityPistons designed for any application in the field of motorcycles (road and terrain), quad, ATV,Go-Karts, where high performance is essential, can be used. The Vertexpiston rings used in Japan are supplied by OEM suppliers of the most importantjapanese motorcycle manufacturer manufactured according to the highest quality standards, i.e.they are interchangeable with the original products. Vertex is the first choice for everyone,who want the highest performance for all applications in the world of motor sports.

Vertex piston for two-stroke engines
Since a piston produced by casting has a higherSilicon content can exhibit as forged pistons,and since the pressure in the cylinders of two-stroke enginesis lower than with four-stroke pistons, cast pistons are theideal solution for this application.Vertex two-stroke pistons are produced by gravity castingmade of an aluminium alloy with anSilicon content of 18%. TheSilicon content plays a major role, because:

• It reduces the thermal expansion, which afterthe operating temperature to be reachedCan lead to changes in the shape of the piston.Due to their lower thermal expansionvertex pistons for two-stroke engines can be usedwork with smaller tolerances thanForged piston. This ensures that powerand service life are significantly increased and aquieter operation without possible breaksis guaranteed.
• The high silicon content also increases theWear resistance and thus theLife of the piston without loss of power.

Vertex pistons for four-stroke engines
Four-stroke engines have a much higherCylinder pressure as two-stroke engines and thepistons are normally equipped with aHot forging. The Vertex pistons forFour-stroke engines are made from the high-qualityof the highest quality, used in aviationAlloy 2618 hot forged, the optimalStrength and durability guaranteed.Vertex uses the data from theDevelopment,exclusive profiles and piston head shapes,with which strength, torque andServices in generaloptimized and at the same timeoil consumption andLeaks (blow by)can be reduced.

To facilitate running-in and to reduce wearall vertex flasks are free to rotate over the entirePiston body coated with molybdenum bisulfide (MOS2).

The Vertex products have the following features:

• Pistons and standard components are equipped withthe respective OEM products.
• The kits consist of pistons, rings,Bolts and snap rings.
• All pistons are heat treated witha remuneration procedure T5 or T6.
• The replacement piston rings are also available individuallyavailable.

Piston rings from Vertex
The Vertex piston rings of the latest generation forTwo-stroke and four-stroke engines consist of nitride-hardenedor chromed steel. This is intended to improve their wear resistanceand their service life can be optimised.The piston rings from Vertex are equipped with the respectiveOEM products interchangeable.

Piston bolts from Vertex:
Vertex piston pins are normally used formade of a steel alloyand case-hardened. In additionthere are the following variants for the respectiveFields of application:

• Bolts with nitrite coating are normally used forfor powerful four-stroke engineswhich are connected via a steel connecting rodwith or without bronze bearings.
• The nitrite-coated surface is extremewear-resistant and prevents seizurethe piston.
• The piston pins for four-stroke engines KTMare coated with DLC.

Vertex recommends the following cylinder/piston installation clearance:

	50/124 ccm	125/249 ccm	250/499 ccm	500 ccm and more
Installation clearance 2-stroke engines	0.050/0.060mm	0.050/0.060mm	0.060/0.070mm	0.060/0.070mm
Installation clearance 4-stroke engines	0.050/0.070mm	0.060/0.080mm	0.060/0.080mm	0.070/0.100mm