Surron LBX/Ultra bee, Transmission gears, large and small included. (may fit other brands and models)
Recommended to use with Starwheel Carbon belt. (sold separately)
Key Advantages of the Perforated Pulley Design
1. Mud & Debris Discharge
Precisely engineered perforations allow mud, sand, and debris to be expelled through the pulley, significantly reducing belt contamination and minimizing the risk of belt breakage. The benefits are immediate and obvious in harsh riding environments.
2. Enhanced Heat Dissipation
High-speed operation generates friction and heat. The perforated structure improves airflow during rotation, accelerating heat dissipation and preventing excessive temperature buildup. This effectively avoids belt failure caused by overheating and greatly extends belt service life.
3. Weight Reduction & Lower Rotational Inertia
The lightweight design reduces overall mass and rotational inertia, allowing the motor to operate with less load. This leads to reduced vibration, smoother power delivery, and improved system efficiency.
4. Optimized Dynamic Balance
Strategically distributed perforations enable precise mass balancing of the pulley. This reduces eccentric vibration at high rotational speeds, lowers noise levels, and ensures a more stable and refined drivetrain performance.
5. Functional Contact Surface Design
The perforations are carefully engineered to discharge debris without fully hollowing the belt contact area. This ensures proper belt engagement and stable power transmission under normal operating conditions.
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Precision Manufacturing
Manufactured using Japanese- 4-axis CNC machining, ensuring exceptional dimensional accuracy and surface quality. The high precision of the drivetrain components directly enhances durability, reliability, and overall performance.
The only trade-off: a higher production cost — a necessary investment for uncompromising performance and longevity.
