420-104 Drive Chain for Yamaha RT100 1990-2000 RT 100

420-104 Drive Chain for Yamaha RT100

This 420-104 drive chain is a direct replacement chain sized for the Yamaha RT100, delivering smooth power transfer from the engine to the rear wheel for 1990-2000 models.

Overview

The 420-104 drive chain is a wear item built to keep the RT100 moving power to the rear wheel reliably. Riders running a 1990-2000 Yamaha RT100 will find this chain sized to match the stock 420 pitch and 104-link length. It suits anyone doing routine drivetrain maintenance or replacing a stretched chain.

Built For Performance

• 420 pitch sizing matches the RT100 stock drivetrain
• 104-link length fits the 1990-2000 RT100 sprocket and swingarm setup
• Steel construction resists stretch under load
• Roller design keeps friction low across the sprockets
• Pre-stretched during manufacturing to reduce break-in adjustment

Fits These Machines

• for Yamaha RT100 1990
• for Yamaha RT100 1991
• for Yamaha RT100 1992
• for Yamaha RT100 1993
• for Yamaha RT100 1994
• for Yamaha RT100 1995
• for Yamaha RT100 1996
• for Yamaha RT100 1997
• for Yamaha RT100 1998
• for Yamaha RT100 1999
• for Yamaha RT100 2000

On-The-Job Use

• Trail riding on small-displacement two-strokes
• Farm and property use where the RT100 handles light hauling
• Restoration projects returning an RT100 to running condition
• Routine drivetrain refresh when the old chain has stretched

Specs At A Glance

Good To Know

Q: Do I need to change the sprockets at the same time? A: It is good practice to inspect both sprockets when replacing the chain. Worn sprocket teeth will quickly wear out a new chain.

Q: How often should chain tension be checked? A: Check tension before each ride and adjust to the spec in your Yamaha service manual. A properly tensioned chain lasts far longer.

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