Woodniu Racein Surron Hyper Bee 12T 420 Sprocket
Brand: Woodniu Racein
Application: Exclusively designed for Surron Hyper Bee Electric Dirt Bike
Authenticity: Premium 12T 420 countershaft sprocket / front drive sprocket replacement
- Woodniu Racein Surron Hyper Bee 12T 420 Sprocket: Direct OEM replacement countershaft drive sprocket
- 12 Tooth 420 Chain Spec: Exact factory gearing for Hyper Bee's drivetrain
- High-Strength Steel Construction: Heat-treated for maximum wear resistance and durability
- Precision Machined Teeth: Ensures smooth chain engagement and reduced drivetrain noise
- Perfect Fit & Alignment: Matches factory spline for secure, wobble-free installation
- Optimized Acceleration: 12T gearing for responsive low-end torque and off-road performance
- 3-Month Warranty: Free replacement for manufacturing defects (man-made damage excluded)
Overview
Upgrade or replace your Surron Hyper Bee’s drivetrain with the Woodniu Racein 12T 420 Sprocket. This precision-engineered countershaft drive sprocket is a direct OEM replacement for your stock front sprocket, specifically matched to the Hyper Bee’s 420 chain and 12-tooth factory gearing, delivering reliable power transfer and enhanced off-road performance.
Crafted from high-strength, heat-treated steel, this sprocket offers exceptional wear resistance and impact strength, ensuring long-lasting durability even under aggressive riding conditions. Whether you’re replacing a worn stock sprocket or fine-tuning your bike’s acceleration, this 12T 420 sprocket is the ultimate upgrade for your Hyper Bee’s drivetrain.
What’s Included
✅ 1 x Woodniu Racein Surron Hyper Bee 12T 420 Countershaft Sprocket
Key Features
Exact 12T 420 Factory Specs
Engineered to strict OEM standards, featuring 12 teeth and compatibility with 420 series chains, perfectly matching the Surron Hyper Bee’s stock drivetrain. This exact gearing ensures seamless integration with your existing chain and rear sprocket, eliminating the need for modifications or chain replacement.
100% Direct OEM Fit
Precision-machined to match the exact spline pattern, bore size, and dimensions of the Surron Hyper Bee’s stock countershaft sprocket. No modifications, filing, or custom fitting required—slides directly onto your engine’s countershaft and locks into place with your original factory hardware in minutes.
High-Strength Heat-Treated Steel Construction
Forged from premium, high-tensile steel and heat-treated for maximum hardness and wear resistance. This robust construction withstands the extreme forces of off-road riding, preventing tooth wear, bending, and premature failure, extending the lifespan of your chain and drivetrain components.
Precision Machined Tooth Profile
Features a precision-engineered tooth profile that perfectly matches your 420 chain, ensuring smooth, consistent engagement and power transfer. This design eliminates chain slippage, reduces noise and vibration, and minimizes wear on both the sprocket and chain, delivering a quiet, reliable ride.
Optimized for Off-Road Performance
The 12-tooth gearing is calibrated specifically for the Surron Hyper Bee, delivering responsive low-end torque and improved acceleration for technical trails, jumps, and aggressive off-road riding, while maintaining smooth highway performance.
Woodniu Racein Quality Assurance
Backed by our 3-month quality promise: if you receive the sprocket and discover manufacturing defects (e.g., tooth damage, spline wear, or material flaws), we will send a brand-new replacement free of charge (excludes man-made damage, normal wear, or improper installation).
Installation Guide
Lift your Surron Hyper Bee and secure it on a stand to access the front sprocket and chain.
Loosen the rear axle nut and adjust the chain tension to release pressure on the drive chain.
Remove the front sprocket cover and the stock countershaft sprocket retaining bolt.
Slide the old sprocket off the countershaft, then clean the shaft and splines thoroughly to remove dirt and grease.
Align the Woodniu Racein 12T 420 Sprocket with the splines and slide it fully onto the countershaft.
Reinstall the retaining bolt and tighten to the factory-recommended torque specification.
Reinstall the sprocket cover, adjust the chain tension to the factory spec, and tighten the rear axle nut.
Test ride at low speed to confirm smooth chain operation and proper gear engagement before aggressive off-road use.
Compatibility
✅ 100% Compatible with Surron Hyper Bee Electric Dirt Bike (fits 420 chain, 12T factory gearing)
❌ Not compatible with Surron Light Bee X, Ultra Bee, or other non-Surron electric dirt bikes (spline and gearing specs differ)
❌ Not compatible with non-420 chain sizes
Warranty & Support
Fitment Guarantee: Engineered exclusively for the Surron Hyper Bee 12T 420 drivetrain—perfect fit guaranteed.
Quality Guarantee: Free replacement for manufacturing defects within 3 months (man-made damage excluded).
Customer Support: Our professional team is ready to assist with installation, chain tensioning, or gearing troubleshooting—contact us anytime for fast solutions.
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