KTM 450 SX-F Herlings Replica [2019] - GP Racer Choice forged pistons

VERTEX GP Racer Choice forged pistons for KTM 450 SX-F Herlings Replica

The VERTEX GP Racer Choice forged piston was developed for use in the performance-oriented 4T engine of the KTM 450 SX-F Herlings Replica. The forged aluminum component combines piston compression designed for racing with design details for demanding engine use.

Function and construction

The shape and design of the piston crown supports a targeted flame front and is designed to achieve the maximum permissible compression ratio. Reinforcements stiffen the piston structure and reduce piston crown deformation under full load. A surface treatment serves to reduce friction.

• Forged aluminum piston
• Piston compression: Racing
• Short piston pin with chamfer and DLC coating (Diamond Like Carbon)
• Circlip with nose on the outside to prevent twisting at high speeds
• Extra-thin GNH piston ring made of gas nitrided steel to increase wear resistance

Technical data

• Diameter Ø: 94.96 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 95.00 mm
• Piston rings: set
• Stroke: 4T

Vehicle assignment

Suitable for the KTM 450 SX-F Herlings Replica, built in 2019. The vehicle assignment refers to this complete model and year range.