Namura Standard Bore Piston Kit Size B (39.47mm) for KTM 50 SX 2009-2023 39.5mm
Namura Standard Bore Piston Kit Size B (39.47mm) for KTM 50 SX 2009-2023 39.5mm
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Piston Kit for KTM
This Namura standard bore piston kit Size B (39.47mm) for KTM 50 SX (2009-2023) replaces the original piston for engine repair and maintenance.
Overview
The Namura piston kit Size B (39.47mm) is designed for KTM 50 SX mini dirt bikes from 2009 to 2023, providing a standard bore replacement at 39.5mm nominal. It includes rings and pin for a complete top-end rebuild.
Built For Performance
- Size B specification for standard bore
- Precision-machined aluminum alloy
- Includes piston rings, wrist pin, and clips
- Lightweight for high-revving engines
- Direct fit for KTM 50 SX
Fits These Machines
- for KTM 50 SX (2009-2023)
On-The-Job Use
- Mini dirt bike racing
- Youth motocross
- Engine rebuild after wear
- Trail riding for young riders
Specs At A Glance
| Bore Size | 39.47mm (Size B, 39.5mm nominal) |
| Type | Standard Bore Piston Kit |
| Compatibility | KTM 50 SX 2009-2023 |
Good To Know
Q: What is the difference between Size B and Size C? A: Size B is 39.47mm and Size C is 39.48mm; they are both standard bore but slight manufacturing variations.
Q: Does this kit come with a gasket set? A: No, only the piston, rings, pin, and clips are included; gaskets must be purchased separately.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.
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