520-106 O-Ring Drive Chain for Yamaha YZ250 1974 1975 1976 YZ 250

520-106 O-Ring Drive Chain for Yamaha YZ250

This 520-106 O-ring drive chain is a 520-pitch, 106-link replacement chain built for the Yamaha YZ250 and delivers smooth, sealed power transfer from the engine to the rear wheel.

Overview

This 520-106 O-ring drive chain is a direct-fit replacement for the Yamaha YZ250, sized at 520 pitch with 106 links to match the stock run length. O-ring seals hold lubricant in and keep dirt out, so the chain runs smoother and lasts longer between adjustments. Riders maintaining a 1974, 1975, or 1976 YZ250 will find this drive chain a practical, bolt-on solution.

Built For Performance

• 520 pitch matches the YZ250 sprocket sizing for correct engagement
• 106-link length fits the stock YZ250 chain run
• O-ring seals retain lubricant and block out dirt and grit
• Steel construction resists stretch under repeated load
• Sealed design reduces wear for longer service intervals
• Pre-stretched for reduced break-in adjustment

Fits These Machines

• for Yamaha YZ250 (1974)
• for Yamaha YZ250 (1975)
• for Yamaha YZ250 (1976)

On-The-Job Use

• Motocross track riding and practice sessions
• Trail and off-road riding on a vintage YZ250
• Restoration projects for 1974 to 1976 YZ250 models
• Routine drivetrain maintenance and chain replacement

Specs At A Glance

Good To Know

Q: How do I know this chain fits my YZ250? A: It is sized at 520 pitch with 106 links, which matches the stock chain run for the 1974 to 1976 YZ250. Confirm your sprocket sizes and current link count before ordering.

Q: What makes an O-ring chain different from a standard chain? A: O-ring seals keep factory lubricant around the pins and block out dirt, which reduces wear and stretch on a drive chain. This suits riders who want longer service intervals between adjustments.

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