Description
Product Overview
The TRKIMAL 420 front sprocket is a precision‑engineered component designed for a wide range of powersports vehicles, including mopeds, ATVs, mini‑bikes, and go‑karts. Constructed from high‑grade stainless steel, the sprocket offers superior corrosion resistance, heat tolerance, and structural integrity, ensuring reliable operation in harsh environments such as off‑road trails, dusty roads, and wet conditions. The 420 tooth designation indicates a standard pitch that fits a broad selection of chain drives, while the 17mm width provides a balanced profile that reduces wear on both the chain and the adjoining gears.
Key specifications include a package dimension of 5.35 x 2.52 x 1.02 inches and a lightweight design at just 2.08 ounces, making it easy to handle during installation. The product carries the TRKIMAL model number 424A and complies with industry standards for automotive and powersports sprockets, as reflected in its best‑seller ranking of #84 in the Powersports Sprockets category. The inclusion of two circlips in each package ensures a secure fit on the gear shaft, preventing axial movement and extending the lifespan of the drivetrain.
![[Product front view showing all components]](https://www.borviro.store/wp-content/uploads/2026/06/4bb49bcc103943e7ac78b9b0207aa04f.jpg)
Usage
This front sprocket is ideal for riders who demand consistent power delivery across a variety of engine sizes, from 50cc to 125cc. Whether you are navigating tight urban streets on a 50cc moped, tackling rugged terrain on a 125cc ATV, or competing in a mini‑bike race, the TRKIMAL sprocket delivers smooth engagement and minimal chain stretch. Its stainless‑steel composition resists rust and corrosion, making it suitable for use in humid climates or near salt‑treated roads where metal components are prone to degradation.
Installation is straightforward: the sprocket slides onto the gear shaft, and the supplied circlips lock it in place. This design eliminates the need for additional fasteners or complex torque specifications, allowing you to complete the upgrade in under 30 minutes with basic hand tools. After installation, the sprocket works seamlessly with standard 420‑pitch chains, providing reliable torque transfer and reducing the likelihood of chain slippage during aggressive acceleration or hill climbs.
Why Choose Us
Choosing TRKIMAL means selecting a brand with a proven track record in manufacturing durable powersports components. Each sprocket undergoes rigorous quality control testing, including hardness checks, dimensional verification, and corrosion resistance assessments, to guarantee that the final product meets or exceeds OEM specifications. Our commitment to customer satisfaction extends beyond the point of sale; we provide responsive after‑sales support, technical assistance for fitment queries, and a hassle‑free return policy should the product not meet your expectations.
In addition to the robust material selection, the design of the TRKIMAL 420 front sprocket incorporates a precision‑cut tooth profile that minimizes chain wear and maximizes power efficiency. The 17mm width offers a sweet spot between strength and flexibility, allowing the sprocket to absorb shock loads without compromising the integrity of the drivetrain. This balance of performance and durability makes the sprocket a cost‑effective upgrade for both casual riders and competitive racers.
Key Features
- Stainless steel construction provides excellent corrosion resistance for long‑term outdoor use.
- 17mm width delivers a strong yet flexible profile that reduces chain wear and improves power transfer.
- Compatible with 10‑14 tooth gear sizes, fitting a wide range of 420‑pitch chain systems.
- Lightweight design (2.08 oz) simplifies handling and installation without sacrificing durability.
- Includes two circlips for secure mounting and offers dedicated after‑sales support for any fitment questions.
FAQ
What size chain does this sprocket fit?
The TRKIMAL 420 front sprocket is designed for standard 420‑pitch chains, which are the most common chain size used in mopeds, ATVs, and mini‑bikes.
Can I install this sprocket on a 70cc engine?
Yes. The sprocket is compatible with engines ranging from 50cc up to 125cc, so a 70cc engine falls well within the recommended power range.
Do I need any special tools to install the circlips?
No special tools are required. The circlips can be installed with a simple pair of needle‑nose pliers or a circlip installer, which are commonly found in most toolkits.
Is this sprocket suitable for off‑road use?
Absolutely. The stainless‑steel material and robust tooth profile are engineered to withstand the abrasive conditions of off‑road terrain, providing reliable performance on dirt, gravel, and mud.
What warranty does TRKIMAL offer on this sprocket?
TRKIMAL provides a one‑year limited warranty covering manufacturing defects. If you encounter any issues related to material or workmanship, contact our support team for a replacement or refund.





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