Meteor 250 Piston 72.5MM

Description

The Meteor 250 Piston (72.5mm) is a premium replacement piston engineered for maximum reliability, performance, and precision in modern trials motorcycles. Made in Italy by Meteor, a piston specialist since 1952, this component combines advanced metallurgy with meticulous machining for consistent, long-term performance.

Crafted from high-quality aluminium alloy, the piston offers exceptional strength-to-weight balance, excellent heat dissipation, and outstanding wear resistance. Its precision-engineered design ensures smooth power delivery, crisp throttle response, and extended engine life, making it the perfect choice for maintaining your Gas Gas trials bike in peak condition.

This complete kit includes the piston, rings, wrist pin, and circlips, ensuring easy installation and a factory-level fit. Available in A/B/C size codes, allowing you to precisely match your cylinder’s original markings for the correct clearance.

Features

• Made in Italy by Meteor – piston specialists since 1952
• Premium aluminium alloy – lightweight, strong, and durable
• Precision machining for perfect fit and performance consistency
• Excellent wear resistance for extended piston and engine life
• Smooth and reliable power delivery in trials conditions
• Complete kit: piston, rings, pin, and circlips included
• Available in A/B/C size codes for accurate cylinder matching

Fitment

• Gas Gas Pro / Racing / GP 250 (2002–2025)

Dimensions

• Diameter: 72.5mm
• Compression height: 28.7mm
• Head type: Barrel head
• Head height: 3.8mm
• Total length: 66mm

Estimated Weight

• Approx. 170–180g (complete kit)

Choosing the Right Size
Each cylinder is stamped with a size code (A/B/C/D) that indicates its exact internal diameter.

• When new: match piston and cylinder codes (e.g. “A” piston for “A” cylinder)

• After wear: move to the next size code (A → B → C)

• After final code: re-plate or replace the cylinder

⚠️ Always check the size code on your cylinder before ordering. Using the wrong size may cause poor performance or engine damage.