Gold 520x112 Drive Chain & 13/49 Sprockets for Yamaha YZ125 2002 2003 2004

Gold 520x112 Drive Chain & 13/49 Sprockets for Yamaha

This Gold 520x112 drive chain and 13/49 sprocket set is a direct-fit replacement for the Yamaha YZ125, providing reliable power transfer and durability for off-road riding. The kit includes a heavy-duty 520 chain with 112 links and precision-machined steel sprockets to restore original performance. Designed for Yamaha YZ125 models from 2002 through 2004, this gold chain and sprocket combo delivers long-lasting engagement on tracks or trails.

Overview

This Gold 520x112 drive chain and 13/49 sprocket kit is a complete replacement drivetrain set for the Yamaha YZ125, built to handle the demands of motocross and enduro riding. The hardened steel sprockets and premium O-ring chain reduce wear and maintain tension mile after mile. Riders seeking a drop-in upgrade for their 2002‑2004 YZ125 will find this package offers dependable fitment and performance.

Built For Performance

• 520‑size O‑ring chain with 112 links for reduced stretch and long service life
• 13‑tooth front sprocket and 49‑tooth rear sprocket match OEM gearing
• Heat‑treated steel construction on both sprockets resists abrasion
• Gold‑colored chain coating provides corrosion resistance
• Pre‑stretched chain minimizes adjustment frequency

Fits These Machines

• for Yamaha YZ125 2002
• for Yamaha YZ125 2003
• for Yamaha YZ125 2004

On‑The‑Job Use

• Motocross track riding and racing
• Trail and off‑road enduro sessions
• Competitive hare scrambles and GP events
• Practice and training days on dirt

Specs At A Glance

Good To Know

Q: Will this chain and sprocket kit fit my 2003 YZ125? A: Yes, this Gold 520x112 chain and 13/49 sprocket set is designed specifically for the 2002‑2004 Yamaha YZ125, including the 2003 model.

Q: How often should I replace the chain and sprockets? A: Inspect your drivetrain every 10‑15 hours of riding; replace the set when chain stretch exceeds 1% or sprocket teeth show visible hooking.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.