LUNJE® MTB Heavy Duty Stem CNC Factory - OEM SGS Certified M6 Bolt High-Torque Alloy bike stem manufacturer for Enduro, Downhill & E-MTB

Why the XT-A037 Stem Opts for M6 Bolts Over the Industry-Standard M5? 🏭 LUNJE Factory: Committed to Rider Safety 1. Maximum Clamping Force for DH, Enduro, and E-MTB Safety 2, High Durability & Fatigue Resistance (Built to Last) 3, Zero Bolt Stripping (M6 Precision Engineering) 4, Over-Engineered for Heavy-Duty Performance Technical Specifications ：💎 ✓ Model: LUNJE XT-A037 (New models for sale now) ✓ Material: Full CNC Machined 6061-T6 Aluminum Alloy ✓ Length: 35mm (Short reach for snappier handling) ✓ Handlebar Clamp Diameter: 31.8mm （Ideal upgrade for 31.8mm handlebars） ✓ Steer Tube Diameter: 28.6mm (1-1/8") ✓ Angle: 0° Degree (sharpens up the handling) ✓ Weight: Approx. 160g (Optimized Strength-to-Weight Ratio) ✓ Finish: Anodized Scratch-Resistant Surface (clean, race-ready look)

LUNJE® 3D Forged Suspension Stem Factory - SGS Certified Adjustable ±60° Shock Absorber for E-Bike/Gravel/Trekking Upgrade

XT-A829 🏆 3D Forged Suspension Stem Factory (SGS Certified) 💎 Technical Specifications: 🆔 Model: LUNJE® XT-A829 (Suspension Bike Stem Series) 🛡️ Material: 3D Forged 6061-T6 Aluminum Bike Parts (High Strength) ⚙️ Tech: Smart Shock Absorber (Soft/Hard Spring Options) 📏 Length: 60/70/80/90/100/110mm Options ⭕ Clamp: 31.8mm (Standard Aluminium Bicycle Handlebars Fit) 📐 Adjustment: Adjustable Bike Stem OEM (0-60° Customizable Rise) 🍴 Steerer: 28.6mm (1-1/8") Universal Compatibility 🎨 Finish: Black/Purple Anodized (Bicycle Parts Custom Logo Available) ✅ Performance: Absorbs 30% Trail Vibrations / 45% Fatigue Reduction 📜 Compliance: SGS Certified & ISO 4210 Bike Stem Compliant Direct Factory Quotes & OEM/ODM Support: 📧 E-mail: lunje.bicycle@gmail.com 📱 WhatsApp: +86 13798419681

LUNJE 30° rise riser stem, 50 mm height, designed for upright‑style mountain bikes to enhance riding comfort; 31.8 mm handlebar clamp and 28.6 mm steerer tube—no top cap required.

✅ One‑click installation for 28.6 mm forks (no cap required). ✅ Say goodbye to back pain! 30° rise handlebar stem, suitable for mountain bikes and road bikes. ✅ Quick installation, forged monolithic design, compatible with 31.8 mm handlebars. 🚵🏻‍♀️ Contact us for a quote and OEM customization: 📧 Email: spencerchou@koofbicycle.com 📱 WhatsApp: +86 19926456877 🌐 Product page: #MountainBikeStem #DownhillBikes #EnduroBikes #BicycleAccessories #OEMManufacturing