YBEKI Bike disc Brake Rotor 140mm 160mm 180mm 203mm Heat Dissipation with 6 Bolts for Road Mountain MTB BMX Stainless Steel Bicycle (black, 180mm)

🔥 【Advanced Thermal Management System】Floating Rivet Design: 5mm shortened heat sink rivets + 30% thicker brackets dissipate heat 30% faster vs solid rotors (lab-tested at 300°C continuous). Laser-Cut Grooves: Directional channels eject mud/water instantly while braking, maintaining 95% wet condition performance (EN ISO 3458 certified). 🛡 【Military-Grade Dual-Layer Construction】Outer Ring: Japanese SUS420 martensitic steel (HRC 38-42) resists warping even on Alpine descents. Inner Hub: Aerospace 6061-T6 aluminum with 3-layer anodization passes ASTM B117 72hr salt spray test. Precision CNC Machining: ±0.1mm tolerance ensures perfect alignment with 44mm PCD hubs. ⚡ 【Pro Installation Kit & Weight Optimization】Complete Set: 2 rotors + 12 titanium-coated M6 bolts (thread locker pre-applied) fit 98% 6-bolt systems. Universal 44mm PCD (ISO standard) fits 98% of modern bikes. Each set includes 2 rotors + 12 titanium-coated M6 bolts (thread locker pre-applied). Weight-optimized design: 140mm: 110g | 160mm: 135g | 180mm: 160g | 203mm: 210g. Clear size markings prevent installation errors. 📊 【Rider-Validated Durability】5,000+ User Feedback: 30% thicker edge reinforcement withstands 50,000+ brake cycles (3x OEM lifespan). Warp-Free Guarantee: Dual-material expansion tech prevents deformation on 20% gradient declines. ✅ 【1-Year Warp & Crack Warranty】Stress-Free Coverage: 12-Month if warping exceeds 0.2mm & "Zero Rust" Promise – Free replacement if oxidation occurs, 24/7 Expert Support – UK-based mechanics answer questions within 12 hours, Fast Replacement: Defective parts replaced within 48 hours