Parts Unlimited Front Countershaft Sprocket – 520 Chain (10T / 11T / 12T)

Fine-tune your gearing for power or speed. These Parts Unlimited countershaft sprockets are available in 10, 11, or 12 tooth sizes to fit a wide range of Honda ATVs. Manufactured from hardened steel with precision-machined teeth and splines for a direct OEM fit.

Whether you're replacing a worn sprocket or adjusting your gear ratio for more low-end torque or higher top speed, these sprockets deliver long life and reliable performance on the trail or track.

✅ Key Features:

• Tooth Options: 10T (faster acceleration), 11T (stock), 12T (higher top speed)
• OEM Fitment: Precision splines for a factory-like install
• Hardened Steel: Built to withstand off-road abuse and resist premature wear
• Compatible Chain: Works with standard 520 chain setups

📦 What’s Included:

• 1x Front Countershaft Sprocket (your choice of 10T, 11T, or 12T)

🔧 Fitment:

Fits most Honda ATVs using a 520 chain drive. Common fitment includes TRX400EX, TRX400X, and similar models. Contact us before purchase if you're unsure about compatibility.

📦 Handling & Shipping:

• Ships in: 1–3 business days
• Quality checked by: Our experienced ATV techs

🛡️ Warranty & Support:

Manufacturer warranty applies. For best performance, replace your chain and rear sprocket at the same time.

💬 Questions?

Call or text 541-668-7503 or message us via chat. We’ll help you choose the right tooth count for your riding style.