RFX Armalite Aluminum/Steel Hybrid Sprockets for Yamaha WR250F / WR400F & More

• CNC 7075 Aerospace aluminum Inner ring
• HCS Outer Ring
• Hex-Drive location between inner & outer ring
• CAD designed profile for lightness.
• New style mud clearing grooves to reduce wear.
• Rigid design increases torsional strength.
• Color anodized for that factory bike look

Fits

• Yamaha WR250F: 2001-2026
• Yamaha WR400F: 1999-2001
• Yamaha WR426F: 2001-2002
• Yamaha WR450F: 2003-2026
• Yamaha YZ125: 1999-2026
• Yamaha YZ125X: 2020-2026
• Yamaha YZ250: 1999-2026
• Yamaha YZ250F: 2001-2026
• Yamaha YZ250FX: 2015-2026
• Yamaha YZ250X: 2016-2026
• Yamaha YZ400F: 1999, 2002
• Yamaha YZ426F: 2000-2002
• Yamaha YZ450F: 2003-2026
• Yamaha YZ450FX: 2016-2026