Description
Product Overview
The TRKIMAL front sprocket 420 features a 19‑tooth configuration with a 20mm bolt circle and an 18mm inner gear diameter. Constructed from high‑quality steel, it provides excellent corrosion and heat resistance, extending the life of your drivetrain. Package dimensions are compact at 5.28 x 3.7 x 0.83 inches and the unit weighs only 7.4 ounces, making it easy to handle and install. ![[Product front view showing all components]](https://www.borviro.store/wp-content/uploads/2026/06/68df627a1b624956a4c0e912898d4d2b.jpg)
Usage
Designed for 50‑125cc dirt bikes, ATVs, mini‑bikes, and go‑karts, this sprocket fits a wide range of models including TaoTao, Roketa, Sinnis, and Lifan. Whether you ride on rugged trails, sand dunes, or forest paths, the robust steel construction maintains consistent power delivery, even under heavy loads and high temperatures.
Why Choose Us
TRKIMAL is known for precision engineering and reliable components. Each sprocket undergoes strict quality control to ensure perfect tooth geometry and balanced rotation. Our stainless‑steel alloy resists rust, reducing maintenance needs. Backed by responsive customer support, we offer assistance for fit verification and installation guidance.
Key Features
- Durable steel construction resists corrosion and heat for long‑term reliability
- 19‑tooth design provides smooth power transfer and optimal acceleration
- Universal fit for 50‑125cc dirt bikes, ATVs, mini‑bikes, and go‑karts
- Includes spacers and bolts for quick, tool‑free installation
- Dedicated customer service ensures proper fit and post‑purchase support
FAQ
What bike models are compatible with this sprocket?
The sprocket fits most 50‑125cc dirt bikes, ATVs, mini‑bikes, and go‑karts, including popular brands such as TaoTao, Roketa, Sinnis, Coolster, Sunl, Lifan, and others.
Is the sprocket resistant to rust?
Yes, it is made from high‑grade steel with excellent corrosion resistance, suitable for wet and off‑road conditions.
What is included in the package?
The package contains one front sprocket, two spacers, and four mounting bolts for complete installation.
Do I need special tools to install the sprocket?
No special tools are required; the included bolts fit standard 20mm mounting holes, and installation can be completed with basic hand tools.
Can I use this sprocket on a go‑kart?
Yes, the sprocket’s dimensions and tooth count are suitable for many go‑kart applications, providing reliable performance.
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