Vertex 46.95mm Top End Rebuild Kit for KTM 85 SX 2018-2025

Looking to restore the power and performance of your ride? The Vertex Piston & Top End Rebuild Kit is the ultimate solution for reliable engine maintenance. This high-quality kit is designed to save you time and money while ensuring your motorcycle runs at peak performance.

Why Choose the Vertex Top End Rebuild Kit?
Complete Engine Refresh: Save time and money rebuilding the top end of your 2-stroke motorcycle with a trusted, all-in-one kit.

Application-Specific Kits: Designed for precise fitment, 2-stroke kits include a Vertex Piston Kit (piston, pins, clips, and rings), a Hot Rods Small End Bearing, and a Vertex Top End Gasket Kit.

Premium Quality Parts: If a specific brand is unavailable at the time of purchase, an equivalent high-quality brand will be provided to ensure the same level of reliability.

About Vertex 2-Stroke Pistons
Vertex pistons are trusted by leading manufacturers like KTM, making them the go-to choice for riders who demand top-tier performance.

Complete Piston Kit: Each Vertex piston kit includes nitride-coated or chrome-plated piston rings, a hardened wrist pin, and circlips—all at a competitive price.

OE-Quality Performance: As the original equipment (OE) supplier for KTM, Vertex pistons are crafted from premium aluminum alloys with a 12–21% silicon content for enhanced strength and durability.

Advanced Thermal Control: The silicon content reduces thermal expansion, allowing the piston to run at tighter tolerances. This results in more power, reduced engine noise, and longer piston life.

Molybdenum Disulfide (MOS2) Coating: This special coating helps with the break-in process, minimizes friction, and reduces overall wear on the piston skirt.