100" | 109" Monster Big Bore Kit / EVO Motors

Unleash the beast within your bike with the Revolution Performance Monster Big Bore Kits, ranging from 100" to 109". These kits are engineered for riders seeking to dramatically increase their motorcycle's power and efficiency. Key Features: Advanced Material Technology Featuring aerospace-grade all-aluminum cylinders with nickel-silicon-carbide electroplated bores, these kits offer exceptional durability and performance without the need for sleeving. This allows for larger bore sizes, reduced friction, more horsepower, cooler operating temperatures, and an extended engine lifespan. Optimized Design Each kit includes Wiseco forged pistons with rings, designed specifically for maximum compatibility with Revolution Performance's advanced cylinders. Also included are wrist pins, circlips, and high-performance head and base gaskets to ensure a comprehensive upgrade. Reliability and Power These Monster Big Bore Kits provide a significant boost in power within a package that has been rigorously tested for reliability and performance, ensuring that you get the most out of your bike. Ease of Maintenance Replacement head and base gasket sets are available separately, making ongoing maintenance straightforward and simple. Made in the USA Proudly manufactured in the USA, these kits meet the highest standards of quality and craftsmanship. Installation Note: All kits require case-boring for installation, which should be carried out by a professional to ensure optimal performance and safety.  100" Kit requires 4 1/4" Stroke.  109" Requires 4 5/8" Stroke With the Revolution Performance Monster Big Bore Kits, transform your motorcycle into a powerhouse capable of delivering thrilling performance and unmatched power. Perfect for those who crave a major upgrade in their ride's capability and longevity.