Honda CRF 250 R (ME 10) [2004-2009] - forged pistons

PROX forged pistons for Honda CRF 250 R (ME 10)

The PROX forged piston is tailored to the Honda CRF 250 R (ME 10) in the entire 2004-2009 model year range. Its aluminum design and forged design make it a suitable component for revising the engine within this vehicle classification.

Design and technical features

• Material: aluminum
• Piston Type: Forged
• Piston compression: standard
• Diameter Ø: 77.99 mm
• Letter oversize: C
• Oversize: +0.02
• Rings Quantity: Set
• Stroke: 4T
• Specificity: Domed piston / 4 valve pockets / MoS2 coating on the skirt

function in the engine

The special alloy of the PROX piston is designed to minimize friction. The design therefore supports reliable function of the piston in the engine. The curved piston shape and the 4 valve pockets are relevant design features for the selection and comparison with the existing engine.

Vehicle assignment

The forged piston fits the Honda CRF 250 R (ME 10), built between 2004 and 2009. For a correct selection, the diameter of 77.99 mm, the oversize letter C, the oversize specification +0.02 and the standard piston compression must be taken into account.

Technical note

The MoS2 coating is located on the skirt of the piston. The version is intended for a 4T engine and is described as Rings Quantity: Set.