Montesa Cota 4 RT 250 [2004] - cast piston Ø 72.165 mm standard compression Montesa HRC 4TR

Cast piston for the Montesa Cota 4 RT 250 from 2004

The S3 cast piston is designed as a piston for the upper engine area of the Montesa Cota 4 RT 250. Its cast aluminum design with aluminum silicon combines low weight with high durability. As a result, the piston supports a rapid build-up of engine speed and helps reduce vibrations.

Function and execution

The S3 Racing construction is designed to last and is designed for use in a variety of conditions. A MOS2 coating on the piston supports the running properties. The product includes nitrurized steel piston rings.

Technical data

• Brand: S3
• Material: aluminum
• Piston type: cast
• Piston compression: standard
• Diameter: Ø 72.17 mm
• Letter oversize: B
• Oversize: +0.01
• Piston coating: MOS2
• Piston rings: nitrurized steel rings

Vehicle assignment

The piston fits the Montesa Cota 4 RT 250, built in 2004. The assignment is based on this model and this complete year range.

Selection note

In addition to the vehicle model, the standard compression and the dimensions Ø 72.17 mm, letter B and oversize +0.01 are crucial for the selection. Please compare these values ​​with the intended engine dimensions.