FACTORY EFFEX TC4 Cover - SX 125-450F 12-28526 X-Factor Mount Kit Fattens the low end and

Fattens the low end and mid-range torque curve

The Peripherally Belted - Super Complex Laminate Construction (PB-SCLC) shell design combines multiple materials and techniques that deliver both performance and affordability

Contour-X and Regent-X helmets

Bridged double top-rear vent for the Quantum-X and Signet-X helmets

Replacement mounting kit for use with X-Ultimate handguards

FACTORY EFFEX TC4 Cover - SX 125-450F 12-28526 X-Factor Mount Kit Fattens the low end andThe first specifically designed seat cover kit for today's 4 strokes Feature Dura Grip material that has integrated embossed top seat ribs that keep you positioned on the seat Color matched rear panel, raised OEM logos and interlock stitching for long lasting wear Bump version features soft cell seat foam technology for even more grip and control Easy installation; no cutting, sanding or filing required