Namura Standard Bore Piston Kit Size B for KTM 1998-2008 65 SX & 2008 65 XC 45mm

Namura Standard Bore Piston Kit Size B for KTM

This standard bore piston kit size B is a replacement piston assembly for KTM 65 SX (1998-2008) and 65 XC (2008) models with a 45mm bore, providing reliable performance for two-stroke engines.

Overview

The Namura Standard Bore Piston Kit Size B is designed for KTM 65cc engines, offering a direct fit replacement piston and ring set for the 1998-2008 65 SX and 2008 65 XC. This 45mm piston kit uses OEM-spec dimensions to restore compression and power in your dirt bike. It is a cost-effective alternative for top-end rebuilds on KTM 65 series motorcycles.

Built For Performance

• Precision-machined from high-strength aluminum alloy for durability
• Includes piston, rings, wrist pin, and circlips for a complete top-end kit
• Size B indicates a slightly larger diameter for worn cylinder bores
• 45mm bore diameter matches OEM KTM 65 specifications
• Designed for use with standard cylinder dimensions

Fits These Machines

• for KTM 65 SX (1998-2008)
• for KTM 65 XC (2008)

On-The-Job Use

• Motocross racing and trail riding on 65cc two-stroke dirt bikes
• Top-end engine rebuilds to restore lost compression and power
• Competition use where reliable piston performance is critical
• General maintenance for high-revving two-stroke engines

Specs At A Glance

Good To Know

Q: Is this piston kit a direct OEM replacement? A: Yes, it is designed to match OEM dimensions for KTM 65 SX and XC engines, but confirm compatibility with your specific engine serial number before installation.

Q: Does this kit include everything needed for a top-end rebuild? A: It includes piston, rings, wrist pin, and circlips; you may need additional gaskets and seals separately.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.