Upper Chain Roller for Yamaha WR 400F WR400F 1999-2000

Upper Chain Roller for Yamaha WR 400F

The upper chain roller for Yamaha WR 400F models keeps the drive chain aligned and tensioned as it moves through the rear suspension travel, reducing wear on the chain and sprockets.

Overview

This upper chain roller is a direct replacement guide component for the Yamaha WR 400F, built to hold the chain on its correct path through the swingarm arc. It protects the chain from slapping against the frame and keeps drivetrain wear even during hard riding. Riders performing routine maintenance or restoring a WR400F will find this chain roller an easy bolt-on fit.

Built For Performance

• Durable roller compound resists abrasion from constant chain contact
• Roller spins freely on its mount to reduce friction and drag
• Direct replacement for the factory upper chain roller position
• Helps prevent chain slap and premature chain stretch
• Compact design fits the stock mounting point without modification

Fits These Machines

• for Yamaha WR 400F 1999
• for Yamaha WR 400F 2000

On-The-Job Use

• Trail riding where chain slap is common over rough ground
• Motocross and enduro use with frequent suspension movement
• Routine drivetrain maintenance and chain adjustment
• Rebuilding a used WR400F for dependable off-road riding

Specs At A Glance

Good To Know

Q: How often should the upper chain roller be replaced? A: Inspect it whenever you adjust the chain or replace sprockets, and replace it if the roller is cracked, flat-spotted, or no longer spins freely. Worn rollers let the chain slap and accelerate wear on other drivetrain parts.

Q: Will this roller fit both the 1999 and 2000 WR400F? A: It is listed for the 1999 through 2000 Yamaha WR 400F, so it covers both model years. Always confirm your machine's year and serial number before ordering.

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