Gear 1157208 by Polini

Polini Z26 extended sixth gear designed for AM6 engines, made from high-strength alloy steel. It offers a longer ratio than the Z25 to reduce engine RPM in sixth gear, providing a smoother ride at high speeds. Intended for road, sport, and competition setups, it helps to effectively utilise the high power range available.

Design and materials

• High-strength alloy steel ensuring longevity suitable for demanding uses
• High-precision machining ensuring consistent engagement of the teeth for crisp gear shifts

Usage and performance

• Z26 extended ratio reducing RPM in sixth gear for more stable high-speed riding
• Designed for road, sport, and competition setups to efficiently exploit the high power range

Fit and cut

• Specifically designed for AM6 engines for seamless integration into the gearbox
• Two non-interchangeable configurations: Series 1 (V1) solid threaded output shaft 6 mm compatible with Ø18 mm sprocket and Series 2 (V2) hollow threaded output shaft 8 mm compatible with Ø20 mm sprocket
• Carefully compare the output shaft image of your motorcycle with the product before ordering to choose the appropriate version

Advantages

• OEM reference 202.1433
• OEM reference 202.1434
• Made in Italy

Examples of compatible motorcycles

• VENT SKATE 50 (2026)
• SHERCO 50 SM-RS (2026)
• RIEJU MRT 50 SM TROPHY (2026)

Complete list of compatible motorcycles available in the dedicated section below