520-102 O-Ring Drive Chain for Yamaha IT250 1979-1980 IT 250

520-102 O-Ring Drive Chain for Yamaha IT250

This 520-102 O-Ring drive chain is a replacement chain for Yamaha IT250 models from 1979 to 1980, built to transfer power from the countershaft sprocket to the rear wheel.

Overview

This O-Ring drive chain is made to fit Yamaha IT250 machines from the 1979 and 1980 model years. The 520-102 drive chain uses O-ring seals to hold lubricant in and keep grit out, which supports longer service life on off-road rides. It is aimed at riders maintaining or restoring a vintage IT250 who need a dependable replacement for a worn or stretched chain.

Built For Performance

• 520 pitch sizing that matches the IT250 sprocket setup
• 102 link count for the stock chain length
• O-ring seals retain lubricant and block dirt and moisture
• Heat-treated pins and rollers for wear resistance under load
• Pre-stretched construction helps limit initial elongation

Fits These Machines

• for Yamaha IT250 1979
• for Yamaha IT250 1980

On-The-Job Use

• Trail riding and enduro use on the IT250
• Replacing a worn, stretched, or rusted drive chain
• Routine drivetrain service and rebuilds
• Vintage off-road restoration projects

Specs At A Glance

Good To Know

Q: How do I know if this chain fits my IT250? A: It fits Yamaha IT250 models from 1979 to 1980 with a 520 pitch and 102-link setup. Confirm your sprocket size and current chain length before ordering.

Q: Does an O-ring chain need extra maintenance? A: O-ring chains hold lubricant at the pins, so cleaning and light re-lubing between rides is usually enough. Keep it adjusted to the correct slack to protect the seals.

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