Kit Trasmissione JT con Catena JT Heavy Duty O-ring Oro e Nera - Suzuki GN 125 Y 2000

JT 428 Heavy Duty O-Ring Gold & Black Chain and Sprocket Kit – Matched to Your Motorcycle

Renew your motorcycle’s final drive with a complete JT chain and sprocket kit selected specifically for your bike. Wemoto’s system identifies the correct standard-size front and rear sprockets for the motorcycle and combines them with the appropriate 428 JT O-Ring chain in the standard link length required for that gearing. This means there is no need to calculate sprocket tooth counts or work out how many chain links are needed before ordering.

Replacing the chain and both sprockets as a complete set allows all three components to start their service life together, helping maintain accurate chain engagement and smooth transmission of power to the rear wheel. It also avoids fitting a new chain onto worn sprocket teeth, which can accelerate wear and shorten the life of the replacement chain.

Correctly Matched Chain and Sprockets

• Correct standard-size JT front sprocket selected for your motorcycle
• Correct standard-size JT rear sprocket selected for your motorcycle
• 428 pitch JT sealed O-Ring drive chain
• Chain supplied in the standard link length required for the selected gearing
• Complete front sprocket, rear sprocket and drive chain replacement set

JT 428 Heavy Duty O-Ring Gold & Black Chain

The JT 428 sealed O-Ring chain is designed for dependable everyday motorcycle use where a durable 428 drive chain is specified. O-Ring seals positioned between the inner and outer plates help retain lubricant around the chain pins and bushes while providing protection against water, road dirt and contamination. This helps reduce internal wear and makes the chain particularly well suited to motorcycles used regularly in varying road and weather conditions.

Its Gold & Black finish gives the final drive a distinctive premium appearance, while heavy-duty construction, solid bushes and securely riveted pins provide the strength and durability required for reliable power transmission.

JT 428 O-Ring Chain Technical Details

• Chain pitch: 428
• Sealed O-Ring construction
• Gold & Black finish
• Roller diameter: approximately 8.50mm
• Pin length: approximately 20.10mm
• Inner plate thickness: approximately 2.0mm
• Outer plate thickness: approximately 1.85mm
• Average tensile strength: approximately 22.1 kN / 2,250 kgf
• Solid bush construction for resistance to repetitive shock loading
• Four-point pin riveting for secure outer plate retention

O-Ring Chain Protection

The sealing rings help keep lubricant inside the critical pin and bush areas of the chain while limiting the entry of abrasive dirt and moisture. Maintaining lubrication where it is most needed reduces metal-to-metal wear and helps the chain retain smooth articulation over an extended service life. Regular external cleaning, lubrication and correct chain adjustment are still important for achieving the best possible performance.

JT Front & Rear Sprockets

JT motorcycle sprockets are manufactured for accurate fit and precise engagement with the drive chain. Each kit uses the standard gearing specified for the selected motorcycle, with the appropriate front and rear sprocket automatically identified by Wemoto’s fitment system. The result is a properly matched final-drive combination designed to restore dependable chain engagement and consistent power delivery.

• Motorcycle-specific front and rear sprockets
• Manufactured from high-quality materials for strength and durability
• Accurate tooth profiles for consistent chain engagement
• Standard gearing selected according to motorcycle application
• Matched to the supplied 428 JT drive chain

Why Replace the Chain and Sprockets Together?

• New components can bed in and wear together correctly
• Prevents a new chain running over worn sprocket teeth
• Helps maintain smooth power delivery through the drivetrain
• Can reduce excessive transmission noise caused by worn final-drive components
• Provides a complete final-drive service in one kit

Installation Advice

For maximum service life, always replace the drive chain and both sprockets as a complete set. Check rear wheel alignment carefully and adjust chain slack to the motorcycle manufacturer’s specification. Sprocket retaining hardware should be inspected and tightened to the correct torque, and the chain should be lubricated with a product suitable for sealed O-Ring chains. Recheck chain adjustment after the initial bedding-in period and periodically throughout its service life.

Chain Related Products

Everything you need for fitting and maintaining your new JT chain and sprocket kit:

• Chain Tools – Tools for removing old chains and correctly joining and fitting replacement motorcycle drive chains.
• Chain Lubricants & Cleaners – Cleaning and lubrication products designed to help protect your chain and maximise service life.
• Chain Oilers – Convenient lubrication systems that help maintain consistent chain lubrication during regular motorcycle use.

Why Buy From Wemoto?

Wemoto has been supplying motorcycle parts to riders and workshops worldwide for decades. Our motorcycle-specific chain and sprocket kits simplify ordering by matching the correct standard gearing and chain length to the selected bike. With quality JT components, knowledgeable technical support, competitive prices and fast, reliable delivery, you can order your replacement final-drive components with confidence.