Zontes 250 310 350 Series 15T 520 Front Sprocket

Description

Replace a worn front drive sprocket on compatible Zontes 250, 310 and 350 series motorcycles with this 15-tooth front sprocket. Designed for a 520-series drive chain, the sprocket provides a direct drivetrain replacement when its dimensions and mounting profile match the original component.

Manufactured from metal and rubber components, the sprocket features a 15-tooth configuration and is intended for use with the compatible Zontes models listed below.

Key Features

• 15-Tooth Front Sprocket: 15T configuration for compatible Zontes drivetrain applications.
• 520 Chain Compatibility: Designed for use with a 520-series motorcycle drive chain.
• Replacement Drivetrain Component: Suitable for replacing a worn or damaged original front sprocket when specifications match.
• Metal and Rubber Construction: Manufactured using metal and rubber components according to the product specification.
• Profiled Sprocket Teeth: Designed for smooth engagement with the compatible drive chain.
• Wide Zontes Fitment: Supports selected Zontes 250, 310 and 350 series motorcycles.

Compatibility

Zontes 310 Series:

• Zontes T310
• Zontes 310X
• Zontes 310R
• Zontes 310T
• Zontes 310V
• Zontes 310VX

Zontes 350 Series:

• Zontes T350
• Zontes 350R
• Zontes 350X
• Zontes 350T
• Zontes GK350

Zontes 250 Series:

• Zontes 250S
• Zontes 250

Please compare the tooth count, chain size, shaft profile and dimensions of your original front sprocket before ordering. Model compatibility alone should not replace checking the original drivetrain specification.

Drivetrain Function

The front sprocket transfers engine output through the drive chain to the rear wheel. Worn sprocket teeth can contribute to poor chain engagement and accelerated drivetrain wear, making correct sprocket condition important for normal chain operation.

This product uses a 15-tooth configuration. Changing from a different original tooth count can alter the motorcycle's final-drive gearing, so the original specification should be confirmed before installation.

Package Includes

• 1 x 15T 520 Front Sprocket

Specifications

Specifications

• Product Type: Motorcycle Front Sprocket
• Position: Front / Engine Sprocket
• Teeth: 15T
• Chain Series: 520
• Specification: 520-15T
• Material: Metal / Rubber
• Quantity: 1 Piece
• Function: Motorcycle Final Drive Chain Sprocket
• Condition: New

Installation

Installation

1. Secure the motorcycle correctly before beginning drivetrain work.
2. Remove the necessary front sprocket cover and related components according to the motorcycle service procedure.
3. Confirm that the replacement sprocket matches the original 15T, 520-series specification and shaft profile.
4. Remove the original front sprocket and inspect the drive chain and rear sprocket for excessive wear.
5. Install the replacement sprocket in the correct orientation.
6. Reinstall all retaining components and tighten them to the motorcycle manufacturer's specified torque.
7. Adjust chain tension and alignment according to the manufacturer's specifications.
8. Rotate the rear wheel and verify smooth chain engagement before riding.

Important: The front sprocket is a safety-critical drivetrain component. Incorrect installation, chain tension or fastener torque can cause drivetrain failure. Professional installation is strongly recommended. For best drivetrain performance, inspect the chain and rear sprocket at the same time and replace worn components as necessary.

Questions about fitting this part? Contact us – we're happy to help before and after your purchase.

Shipping & returns

Dispatched in 1–7 business days, delivery usually takes 5–10 business days (up to 30). Tracking link by email.

Shipping costs are calculated at checkout.

You can return items within 30 days of delivery. See our refund policy for details.

• Shipping policy
• Refund policy