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Woodniu Racein Surron Ultra Bee Drive Belt
Brand: Woodniu Racein
Application: Exclusively designed for Surron Ultra Bee Electric Dirt Bike
Authenticity: Genuine Continental HTD 640 8M primary main drive belt OEM replacement
Overview
Restore peak drivetrain performance for your Surron Ultra Bee with the Woodniu Racein Continental Drive Belt. This is a direct OEM-spec replacement primary drive belt, manufactured by Continental (ContiTech) to the exact original HTD 640 8M specification of your bike’s factory transmission system.
Engineered with premium high-strength compound rubber and precision-molded tooth profile, this heavy-duty drive belt delivers unbeatable load resistance, wear durability, and stable power transmission. It perfectly solves the problems of stretched, worn, cracked, slipping factory belts, and brings your Ultra Bee back to factory-level power delivery and reliable drivetrain performance for aggressive off-road riding.
What’s Included
✅ 1 x Woodniu Racein Surron Ultra Bee Continental Primary Drive Belt (HTD 640 8M)
Key Features
100% Exact OEM Direct Fit
Precision manufactured to the original factory specification HTD 640 8M, fully matching the tooth pitch, length, width and profile of your Surron Ultra Bee’s stock main drive belt. Zero modification required, direct drop-in replacement for your worn factory transmission belt.
Genuine Continental (ContiTech) Made-In-Germany Quality
This drive belt adopts authentic Continental industrial-grade rubber compound, with high tensile internal fiber reinforcement structure. Built to withstand continuous heavy load, high torque output and harsh off-road vibration, far exceeding the service life of ordinary aftermarket generic belts.
Outstanding Wear & Fatigue Resistance
Specially formulated rubber material resists stretching, cracking, abrasion and aging under long-time high-intensity riding. The precision interlocking tooth structure completely eliminates power slip, ensures stable efficient power transmission from motor to rear wheel under all trail conditions.
Smooth Low-Noise Drivetrain Operation
The precision-formed HTD arc tooth profile achieves perfect meshing with drive pulleys, greatly reduces running vibration and operation noise, brings smoother, more responsive power output and a refined riding experience.
Heavy-Duty Off-Road Grade Durability
Designed specifically for the high-torque output of electric off-road dirt bikes. Perfectly adapts to rough trails, frequent acceleration and extreme riding conditions, maintains stable drivetrain performance in long-term use.
Woodniu Racein Quality Assurance
Backed by our 3-month quality promise: if you receive the drive belt and discover manufacturing defects (such as premature stretching, cracking, tooth profile damage), we will send a brand-new replacement free of charge (excludes man-made damage, improper installation and normal daily wear).
Installation Guide
Fully power off your Surron Ultra Bee, lift the vehicle on a stand, and remove the rear wheel and drivetrain protective cover.
Loosen the rear axle tensioner to release tension on the old drive belt.
Remove the worn original drive belt from the motor front pulley and rear wheel driven pulley.
Clean all dust, debris and residual rubber residue on the two pulleys thoroughly.
Route the new Continental drive belt onto the pulleys in correct alignment.
Readjust the rear axle tensioner to restore proper belt tension to factory specification.
Reinstall all protective covers and rear wheel, test run the vehicle to confirm smooth power transmission before normal riding.
Compatibility
✅ 100% Fully Compatible with Surron Ultra Bee Electric Dirt Bike
❌ Not compatible with Surron Light Bee X/S, Hyper Bee, or other non-Surron electric dirt bikes (belt length/tooth spec differ).
Warranty & Support
Fitment Guarantee: Engineered exclusively for the Surron Ultra Bee, exact OEM spec 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 tension adjustment, installation guidance and drivetrain troubleshooting — contact us anytime for fast solutions.



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