520 Pitch Sprockets

59 89 

Upgrade your drivetrain with premium 520-pitch sprockets designed for durability, smooth power transfer, and perfect compatibility with the QS138 V3 H70 motor. Whether you’re tuning for acceleration or top speed, these sprockets deliver the strength and precision your electric motorcycle needs.

This lineup includes a 41T rear wheel sprocket and two motor sprocket options (14T and 15T), giving you flexibility to fine-tune your gear ratio for your riding style.

Description

Key Features

  • Perfect QS138 V3 H70 Fit — Engineered specifically for the popular high-torque motor.

  • High-Strength Construction — Precision-machined from durable steel for long service life.

  • Smooth Engagement — Accurate tooth profiles reduce wear and noise.

  • Performance Tuning Options — Choose 14T or 15T motor sprockets to optimize acceleration or speed.

  • 520 Pitch Standard — Compatible with widely available 520 motorcycle chains.


Technical Specifications

  • Pitch: 520

  • Rear Wheel Sprocket: 41 teeth

  • Motor Sprockets: 14 teeth, 15 teeth

  • Material: High-grade hardened steel

  • Applications: Electric motorcycle builds, especially QS138 V3 H70-powered conversions


Why These Sprockets?

Designed for high-output electric drivetrains, these sprockets handle the instant torque of electric motors without premature wear. Pair them with a 520HO-106L chain for a complete, performance-ready setup.

Specifications
Weight 1 kg
Dimensions 40 × 40 × 5 cm
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Shipping & Delivery

Shipping Information

We strive to make shipping as smooth as possible for all our customers. Here's a breakdown of our shipping policies:

1. Shipping Finished Bikes

  • Within the EU: We prioritize shipping fully assembled bikes for a hassle-free experience. Shipping costs and delivery times vary depending on your location within the EU. Contact us for a personalized quote.
  • International Shipping (Outside the EU): To minimize shipping costs, we typically ship bikes on a pallet and the battery separately. We provide detailed instructions for easy battery installation.

2. Shipping Batteries

Shipping lithium batteries is subject to strict EU regulations. We have extensive experience in safely and compliantly shipping batteries. We use certified packaging and careful padding to ensure your battery arrives safely.

3. Shipping Kits

Shipping kits is generally more cost-effective than shipping fully assembled bikes. Kits are shipped in three separate packages: two cardboard boxes for the bike components and one for the battery.

4. Shipping Parts

  • Within the EU: We primarily use PPL for efficient delivery.
  • International (Outside the EU): We utilize FedEx for reliable international shipping.

5. Personal Pickup

Personal pickup is available at our factory by appointment. Our opening hours are Monday to Friday, 7:00 AM to 3:00 PM. Please contact us in advance to schedule a pickup time.

6. Customer-Arranged Shipping

We welcome customers who wish to arrange their own shipping. Please contact us with your order details, and we will gladly provide the dimensions and weight of your shipment to facilitate your booking.