Ultimate GY6 Power: Why the gy6 crankshaft is Essential

The gy6 crankshaft is the foundational core of every high-performance 150cc engine build. If you’re looking to transform a standard engine into a high-performance racing beast, this component is where the journey begins. At Ruizheng Racing, we understand that professional performance builders, parts stores in Puerto Rico, and race teams need components that can withstand extreme demands. Our range of custom-stroke GY6 Performance Crankshafts delivers unmatched quality, reliability, and the potential for massive displacement gains.

We are a trusted wholesale supplier of GY6 racing parts, specializing in bespoke gy6 crankshaft units designed for the most aggressive GY6 big bore kit builds, including the popular 200cc and 232cc conversions.

Why Choose Our Wholesale gy6 crankshaft for Performance?

For high-volume buyers like motorcycle parts shops and performance brand owners targeting the enthusiast market in the Caribbean (especially Puerto Rico) and the US mainland, consistency and durability are non-negotiable. Our gy6 crankshaft units are engineered to surpass OEM specifications:

• High-Strength Forged Rods: Engineered for superior tensile strength to handle the massive torque generated by large 150cc GY6 big bore kits.
• Precision Dynamic Balancing: Each GY6 performance crankshaft is meticulously balanced to minimize vibration and ensure smooth, stable power delivery even at high RPMs—crucial for racing applications.
• Custom Stroke Options: We offer one of the widest ranges of custom strokes in the market: +3.5mm, +4mm, +8.2mm, +11.99mm, and +16mm. This flexibility allows you to precisely meet your clients’ target displacement goals.
• Direct Fit: Engineered to fit the popular GY6 150cc and 125cc engine platforms (157QMJ/152QMI), making them premium GY6 aftermarket parts.

gy6 crankshaft Stroke Options & Big Bore Potential

Choosing the correct gy6 crankshaft is vital. The stroke length directly impacts the engine’s displacement (CCs) and performance characteristics. Here is a breakdown of our most popular options for GY6 engine performance parts:

Mild Upgrades: +3.5mm & +4mm

These strokes are ideal for entry-level performance enthusiasts. They offer a noticeable torque increase with minimal case modification. Often used in conjunction with a mild camshaft GY6 upgrade. These strokes provide a cost-effective way to get more power from a stock cylinder head.

The Performance Sweet Spot: +8.2mm

The +8.2mm stroker is the industry standard for creating the powerful 232cc builds. This is a must-have component for any serious GY6 232cc big bore kit. When combined with a 67mm piston, this gy6 crankshaft delivers incredible displacement, horsepower, and torque.

(Internal Link: Consider pairing this with our GY6 2 Valve Cylinder Head for maximum flow.)

Extreme Racing: +11.99mm & +16mm

These large-stroke options are reserved for highly competitive racing teams and professional engine builders. The +11.99mm and +16mm gy6 crankshaft variations require extensive engine case machining, specific piston modifications, and are the core of extreme displacement GY6 performance kits. These components are specifically supplied to clients demanding the absolute limits of GY6 engine performance parts for the track.

The Ruizheng Difference: Built for B2B Wholesale

We are not focused on one-off sales; our business is structured to serve your wholesale needs. Whether you are a parts distributor in the US, a scooter customization shop in San Juan (Puerto Rico), or a GY6 racing parts brand expanding across Central Asia, we offer competitive bulk pricing and consistent quality control. We understand the logistics of international shipping and ensure every gy6 crankshaft leaves our facility packaged securely and ready for resale.

Complete Your GY6 Engine Rebuild Kit

A stroker crank is only one part of the equation. We encourage our B2B partners to stock a full range of high-quality GY6 parts to provide a complete solution for their customers. When installing any large-stroke GY6 performance kit, the following supporting components are critical:

• GY6 Camshaft: Maximize volumetric efficiency. See our range of performance GY6 camshafts.
• Timing Components: Extended-stroke cranks require longer chains and often adjustable sprockets. Explore our GY6 Timing Sprocket.
• Cylinder Head: To feed the extra displacement, a high-flow head is necessary. Check out our GY6 2 Valve Cylinder Head.
• GY6 Rebuild Kit: We also stock complete 150cc GY6 engine rebuild kits for easy bulk purchasing.

Contact Us for Wholesale Pricing and Custom Orders

Ready to power up your inventory with the best GY6 performance parts? Our dedicated wholesale team is ready to discuss your specific needs, whether you need 50 pieces of the standard GY6 +8.2mm stroker crankshaft for the Puerto Rican market or a custom batch of the +16mm units.

Stay connected and see our products in action:

• Follow our latest product releases and racing partnerships on Instagram (@racingpart_2013).
• Connect with us and our community on Facebook (Ruizheng Racing).
• Watch our installation guides and product features on YouTube (@RzMotoPartsWholesale).

For immediate wholesale inquiries, please contact:

WhatsApp: +86 13690833592 (Click to Chat) |
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