3-Height Precision Fit:Choose ​70mm (commuting) / 115mm (trail) / 180mm (DH)​​ fixed heights – ​no spacer hassle!​​ Rigid CNC-milled design eliminates wobble risks vs adjustable risers. Fits ALL 1-1/8" (28.6mm) threadless steerers.Bombproof 6061-T6 Alloy:Forged from ​aircraft-grade aluminum​ with sandblasted matte finish. ​40% thicker wall​ (2.5mm) vs competitors, tested to ​ISO 4210 safety standard​ under 300lbs load.90-Second Installation:Tool-free clamp system:1. Slide onto steerer tube → 2.Secure 4-bolt faceplate (5Nm torque) → 3.Ride!Includes anti-scratch frame protector + torque wrench.Ergonomic Relief:​70mm​ reduces back strain on road bikes | ​115mm​ optimizes MTB technical control | ​180mm​ perfect for downhill/cruiser upright posture.WOWSPORT Lifetime Support:​24-month crash warranty​ + US-based team. Laser-etched height marker (+/-1mm precision) ensures perfect alignment.