KTM 250 SX F [2016-2022] - GP Racer Choice forged pistons

VERTEX GP Racer Choice forged pistons for KTM 250 SX F

The VERTEX GP Racer Choice forged piston is designed for the KTM 250 SX F in the full 2016-2022 model year range. As a forged aluminum piston with racing compression, it combines a precise design with constructive details for use in performance-oriented engines.

Constructive features

• The optimized design of the piston crown supports a favorable flame front and the achievement of the maximum permissible compression ratio.
• A special surface treatment reduces friction.
• Reinforcements stiffen the piston structure and reduce piston crown deformation under full load.
• The short piston pin and a chamfer with DLC (Diamond Like Carbon) coating complete the design.
• The locking ring with an external nose counteracts twisting at high speeds.
• The extra-thin GNH piston ring made of gas nitrided steel supports increased wear resistance.

Technical data

• Material: aluminum
• Piston type: forged
• Piston compression: Racing
• Piston diameter: 77.97 mm
• Letter oversize: B
• Oversize: +0.01
• Bore diameter: 78.00 mm
• Piston rings: set
• Stroke: 4T

Vehicle assignment

Suitable for the KTM 250 SX F, built between 2016 and 2022. The vehicle assignment refers to this model and this specified year of manufacture.