JT 428 Heavy-Duty Motorcycle Chain 124-Link Black Steel — HDR race-strength, clip master link

The JT JTC428HDR124SL is a black steel, heavy-duty 428-series motorcycle chain built for high-performance racing and demanding off-road use with a 124-link length and clip master link.

This JT HDR chain pairs race-grade strength with a lightweight profile, engineered from special steel alloys and modern manufacturing methods to deliver reliable power transfer across street bikes, MX, enduro, off-road machines and ATVs. Designed to meet or exceed contemporary motorcycle specifications, the JTC428HDR124SL is optimized to work with JT sprockets and withstand the stresses of aggressive riding.

How does this chain stand up to racing and heavy use?

The JTC428HDR is made from high-grade steel and precision-formed components to provide consistent tensile strength and wear resistance under load. Its build focuses on minimizing weight while maintaining durability, which is important for competitive and aggressive riding conditions.

• Average tensile strength: 5,512 lb-f for dependable load capacity
• Two pin rivet presses increase pin retention and fatigue life
• Roller diameter 8.5 mm for consistent engagement with sprockets
• Clip-style master link for straightforward installation and serviceability

What are the exact dimensions and fit details I should check?

Verify dimensions before ordering to ensure proper fit on your drivetrain. This JT chain follows the 428 pitch standard and includes key measurements used to match chains to sprockets and swingarm lengths.

• Series/pitch: 428
• Links: 124 for long-wheelbase or adjustable applications
• Pin length: 18.3 mm and roller diameter: 8.5 mm
• Plate thickness: inner 2 mm, outer 2 mm — keep these in mind for chain guard clearance

How should I install and maintain the JTC428HDR124SL for best life?

Installation with correct tension, alignment and a compatible JT sprocket will maximize performance and lifespan. Regular inspections and lubrication appropriate to your riding conditions will reduce wear and help prevent premature failure.

• Use recommended JT sprockets to match tooth profile and prolong chain life
• Set chain slack per your motorcycle manual and recheck after initial run-in
• Lubricate and clean after muddy or wet riding; inspect rivets and rollers periodically
• Replace as a set with sprockets when wear becomes evident to avoid accelerated wear

Who is this chain for? The JT JTC428HDR124SL suits riders who demand a race-capable, heavy-duty 428 chain — motocross racers, enduro competitors, off-road riders and ATVs that require a long 124-link length with robust tensile strength. If you pair it with JT sprockets and follow proper setup and care, it’s a strong choice for riders wanting a balance of lightweight construction and durable power transfer.