Vertex 39.47mm Piston Kit – KTM 50 SX / TC 50 / MC 50 2-Stroke
Vertex Cast Replica Piston Kit – 39.47mm for KTM 50 SX / TC 50 / MC 50
OEM-Style 2-Stroke Piston for 50cc Mini Bikes
🔧 Factory-Spec Performance, Race-Ready Reliability
This Vertex Cast Replica Piston Kit is the ultimate OE-style solution for rebuilding your 50cc 2-stroke. Designed with gravity-cast aluminum alloy containing 18% silicone and a molybdenum disulfide-coated skirt, this piston delivers smooth break-in and long-lasting durability—perfect for parents and racers who want to keep their mini machines running like new.
📦 What’s Included:
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Cast Piston (39.47mm)
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Piston Rings
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Wrist Pin
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Circlips
🚀 Key Features:
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Heat-Treated Aluminum Alloy: Gravity-cast with 18% silicone for strength and longevity
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Molybdenum Coated Skirt: Reduces friction, speeds break-in, extends lifespan
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OEM Replacement: Reliable fit and compression for stock cylinder setups
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2-Stroke Specific Design: Built to meet the demands of high-RPM mini bikes
✅ Vehicle Compatibility:
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GasGas MC 50: 2021–2024
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Husqvarna TC 50: 2017–2024
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Husqvarna TC 50 Mini: 2018–2019
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KTM 50 SX: 2009–2024
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KTM 50 SX Mini: 2009–2023
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KTM 50 SXS: 2011–2014
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KTM 50 SX Pro Junior: 2009
🛠 Why Choose Vertex?
Vertex pistons are trusted worldwide for their consistent quality and tight OEM tolerances. Whether you're racing or just rebuilding for regular use, this kit provides factory-level performance without the factory price.
📦 Shipping Information
In-Stock Items:
- Most parts ship next business day
- Modquad parts: Monday–Thursday dispatch
Made-to-Order Items:
- Custom swingarms & A-arms: 2–4 weeks
- EVP exhaust systems: 2–4 weeks
- Sneakers: 1–2 weeks
Stock Guarantee: Items marked "In Stock" ship immediately. Made-to-order items are built fresh for you.
Questions? Contact us—we respond within 24 hours.
