LUNJE® ISO 4210 Seatpost Factory - 3D Forged One-Piece Alloy Post (27.2/30.9/31.6mm) for Bulk MTB Components

XT-P377🚴 3D Forged one-piece seatpost; Unlike low-end posts where the head is a separate piece welded on, Lunje's is 3D forged as one piece. This means the head is integrally formed from the same material, creating a stronger, more prominent structure with a smoothly beveled edge for a premium finish.( ISO 4210 compliant bike seatpost ) 💎 Technical Specifications: 🆔 Model: LUNJE® XT-P377 (ISO 4210 Seatpost Factory Series) 🛡️ Process: 3D Forged One-Piece and CNC (No Joint / Ultra-Strong for Pro Downhill) ⚙️ Material: High-Strength 6061-T6 Aluminum Bike Parts 📏 Size: 27.2 / 30.9 / 31.6mm * 350/400mm, Offset: 0mm, ✅ Standards: ISO 4210 Compliant Bike Seatpost (SGS Lab Tested) 🎨 Finish: Iridescent Oil Slick (Bicycle Parts Custom Logo Available), Color: Film-free labeling/ Iridescent/ Frosted anodized, 🏭 Supply: Reliable Bulk MTB Components for Global OEM Seatpost Brands

25.4mm Series 30-190mm High Rise Aluminum Handlebar: For Folding Bikes / Kids' Bikes / City Commuters / Folding E-Bikes, LUNJE Factory ISO Certified OEM Support

LUNJE 🚲 XT-L010 🚵‍♂️ XT-L017 🏆 The Ultimate 25.4mm Comfort Series 📊 Technical Specifications: LUNJE B.G. Trekking Series Brand: LUNJE (轮迹) Model: XT-L010 / XT-L017 Material: Aerospace-Grade AL 6061-T6 Barbore (Clamp): 25.4mm (Precision Fit) Width: 400mm - 620mm (Customizable) Rise Options: 30mm / 50mm / 70mm / 90mm / 120mm Backsweep: 9° - 12° (Ergonomic alignment) Upsweep: 3° (Reduced strain) Weight: 245g / 282g (Ultra-lightweight) Color: Premium Matte Black Logo: High-Contrast White (Laser/Silk-screen) Category: Trekking / Hybrid / M-Bar 💡 Core Selling Points for B2B Partners: ✅ Perfect Compatibility: Optimized for 25.4mm systems, the standard for Folding Bikes, Kids' Bikes, and City Commuters. ✅ Ergonomic Design: The combination of 12° Backsweep and 3° Upsweep ensures a natural, relaxed posture for long-distance touring. ✅ T6 Heat Treatment: Guarantees superior strength and durability while maintaining the flexibility needed to absorb road vibrations. ✅ Professional Aesthetics: The sleek matte black finish significantly elevates the bike's overall appearance.

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 MTB Bike Fork Stem Extender Handlebar Riser Adapter 28.6*90/115/150/180/210mm Bicycle Front Fork Accessories

XT-Z002 Patented Modular LUNJE MTB Bike Fork Stem Extender 🌟 Handlebar Riser Adapter 28.6mm Steerer 90/115/150/180/210mm Height Quick-Install Design ⚙ Key Features & Innovations: ✔ Ultra-Strong & Lightweight – CNC-machined from aerospace-grade AL 6061-T6 aluminum for optimal strength-to-weight ratio. ✔ Precision Fit – Compatible with 28.6mm steerer tubes (common for MTB, gravel, and hybrid bikes). ✔ Adjustable Riding Comfort – Multiple height options (90/115/150/180/210mm) to customize handlebar position for ergonomic control. ✔ Tool-Free Quick Installation – Securely clamps onto your fork steerer for hassle-free setup. ✔ Sleek & Durable Finish – Anodized surface resists corrosion and scratches (available in multiple colors). ✔ Minimalist Weight – Just 167g (115mm model)—adds minimal bulk while improving ride posture. 💡 Why Choose LUNJE? • OEM/ODM Specialist – Trusted by leading bike brands for high-performance components. • Rigorous QC Standards – Every stem extender is stress-tested for safety and durability. • Customization Ready – Offer branding, colors, and bulk pricing for resellers. 🏆 Perfect For: • MTB, Enduro, Gravel, and Commuter Bikes • Riders seeking a more upright, comfortable position • Quick handlebar height adjustments without changing stems 📩 Get Yours Today! 📧 Email: georgechen@koofbicycle.com 📱 WhatsApp: +86 13798419681 #StemRiser #HandlebarRiser #MTBAccessories #BikeComfort #UpgradeYourRide #6061Aluminum #OEMBikeParts #MTBUpgrades #CyclingErgonomics #BikeFit #GravelBike #EnduroReady #RideHigher #BikeTech

LUNJE® Alloy Seatpost Manufacturer - P341-2 ISO 4210 & EPR Certified OEM Factory

LUNJE P341-2 🏆2025 Global TOP 4 Awarded 🌟 LUNJE® Professional Alloy Seatpost Manufacturer (Patented Design) 🌟 Maximize your inventory turnover with our high-volume Alloy Bike Components Wholesale. The P341-2 is a 2025 award-winning ISO 4210 compliant bike seatpost, engineered for premium durability and global OEM supply. 💎 Technical Specifications: ✅ Identity: Leading ISO 4210 Seatpost Factory - Original Patented Design. ✅ Material: High-Strength 6061 Aluminum Bike Parts (Ultralight). ✅ Standards: SGS Certified Bike Seatpost & LUCID/EPR Compliant. ✅ Customization: Bicycle Parts Custom Logo & OEM Seatpost Solutions. ✅ Market: High-Volume Sales for Bulk MTB Components Global Distribution. 📏 Diameter: 27.2 / 30.9 / 31.6mm 📐 Height: 300 / 400 / 450mm (Extra-Long Option) ⚖️ Weight: Approx. 387g (31.6*400mm) 🎨 Color: Premium Surface Frosted Anodized 🏗️ Feature: High-Strength Die Cast Head 🔄 Offset: 5mm (Golden Ergonomic Angle) 🔧 Applicable: Standard Round Bow (7*7mm) 🌟 Why Choose P341-2? 🥇 Award Winner: Voted Top 4 Best Seatpost in 2025. 🛡️ Patented: Certified Original Design (Whatsapp:13798419681). 🌍 Eco-Friendly: Fully EPR, ADEME & LUCID Compliant.

LUNJE Aero Suspension Seatpost: Best 25mm Offset Adjustable Seatpost for MTB & Gravel

XT-P008🚵‍♂ Weight-saving lattice cutouts LUNJE Offset 25mm aerodynamic Adjustable Cushion 27.2mm /30.9mm/31.6mm * 400mm Aluminum Alloy Bicycle Seat Post MTB Road Mountain Bike Shock Absorbing Suspension Seatpost Spring Tube Absorbers; 🚀 Aero Suspension Seatpost - The Ultimate Vibration Killer， 💎 REVOLUTIONARY COMFORT TECH: ✓ 3D Forged 6061-T6 Aluminum - Hollow aero profile with weight-saving lattice cutouts， ✓ Dual-Spring Suspension - 45mm adjustable travel with progressive damping， ✓ Proprietary Aero Offset - 25mm setback optimizes pedaling efficiency， ✓ Frosted Anodized Finish - Scratch-resistant surface in 5 stealth colors， 🔥 WHY THIS CHANGES EVERY RIDE: "Eliminated 87% of trail buzz while keeping sprint stiffness - game changer!" 🏆 KEY INNOVATIONS: ✓ Aero-Elastic Tuning - Vertical compliance without lateral flex， ✓ Tool-Free Adjustment - Rebound control for road/MTB modes， ✓ Universal Rail Clamp - Compatible with all 7x7mm round saddle rails， 🏭 OEM SOLUTIONS: ✓ Custom lengths (350-500mm) ✓ Branded laser engraving ✓ White-label packaging ✓MOQ 50 units 🔬 IPX6 waterproof testing， 📩 LIMITED PRODUCTION SLOTS: 👉 First 3 OEM partners Orders >1000pcs: Complimentary water sticker， 📞 ENGINEERING SUPPORT: 📧 Email: georgechen@koofbicycle.com 📱 WhatsApp: +86 13798419681 🌐 Tech Specs: https://en.koofbike.com/Product_detail/39.html 🏷️ TECHNICAL HASHTAGS: #SuspensionSeatpost #GravelComfort #AeroCompliance #ForgedAluminum #MTBtech #EnduroEssentials #BikeOEM #RideSmoother #VibrationControl ⚠️ WARNING: May cause excessive rider smiles on rough terrain. Tested to withstand EWS-level impacts.

LUNJE® XT-LB011 Integrated Road Handlebar | Wind-Breaking Aero Drop Bar with Full Internal Cable Routing

Integrated Bar-Stem XT-LB011🏆 Internal Cable Routing Aluminum Alloy Integrated Handlebar one piece racing bar, Ext: 90mm, Steerer: 28.6mm, Drop: 120mm, Reach: 80mm, Width: 420mm (380/400 option), Weight: about 780g (400mm), Color: Matte black anodized, 🚀 Aero Integrated Handlebar Wind-Cheating Performance, best bar for crit racing 💎 RACE-BRED ENGINEERING: ✓ Monocoque 6061-T6 Construction, ✓ Pro Geometry - 80mm reach/120mm drop optimized for aggressive tuck positions, ✓ Wind Tunnel Developed - Teardrop-shaped tops reduce drag by 11% vs round profiles, ✓ Stealth Matte Finish - Military-grade anodizing resists bar tape adhesive residue, 🔥 WHY PRO TEAMS CHOOSE LUNJE: "The perfect balance of aero gains and sprint stiffness for crit racing" . 🏆 TECHNICAL HIGHLIGHTS: ✓ 28.6mm Steerer Compatibility - Frameset-friendly diameter with hidden cable routing， ✓ Size-Inclusive Fit - 380-420mm widths (5mm increments available for OEM)， ✓ Monocoque Forged One-Piece Bar - Pro-Level Stiffness for Sprinting & Climbing，Zero Flex Under Max Power， 🏭 OEM CUSTOMIZATION: ✓ Custom width/reach/drop combos ✓ Internal/external routing options ✓ MOQ 30 units 📩 LIMITED-TIME OEM OFFER: 👉 Orders >1000pcs: Complimentary vibration damping test video. 📧 Email: georgechen@koofbicycle.com 📱 WhatsApp: +86 13798419681 #IntegratedBarStem #AeroBars #CritReady #RoadBikeTech #DropBar #IntegratedBar #IntegratedCockpit #RaceGeometry #AeroHandlebar #IntegratedHandlebar #BikeOEM #WindTunnelTested #CritRacing #EnduranceRoad

LUNJE 5.5mm Thickened e-MTB Handlebar for Surron, Talaria 6061 Aluminum Butted 28.6mm Clamp, 800mm Width (50/70/90mm Rise) Upgrade for Light Bee Sting Electric Dirt Bike & Motorcycle OEM Replacement

XT-JC03🚵‍♂ LUNJE Heavy-Duty E-Bike Handlebar with 5.5mm Wall, 28.6mm Clamp for Surron Lightbee，Talaria Sting Trail Riding, 800mm Off-Road Width​, 3 Rise Options OEM Electric Motorcycle Handlebar，🌟 LUNJE® Professional E-MTB Handlebar Factory 🌟 Engineered for the high-torque demands of E-Bike power. The XT-JC03 features a 5.5mm reinforced wall, making it the premier Aluminium Bicycle Handlebars choice for heavy-duty off-road performance. 💎 Technical Specifications: ✅ Strength: 5.5mm Reinforced Wall (Engineered for E-MTB/DH) - Superior strength and precise steering control. ✅ Material: 6061-T6 Aluminum - 3 Rise Options (50/70/90mm) - Custom fit for any riding style. ✅ 800mm Width - Maximum leverage for technical and off-road control. (SGS tested) ✅ Anti-Slip Left Grip - Prevents clutch slippage, enhances safety. ✅ Surron & Dirt Bike Compatible - Fits popular e-bikes and motorcycles. 👑 Elevate your brand value 🚴 We are your trusted OEM partner 📩 Get Your Custom Quote Today! 📱 WhatsApp: +86 13798419681

LUNJE Patented Adjustable Seatpost: 13° Tilt & 24mm Offset , 27.2/31.6mm & 33.9mm/30.9mm 7x7/7x9 Carbon & Steel Rail Compatible OEM Source Factory

LUNJE XT-P025🚲 High-Performance Seatpost: 3D Forged 6061/7075 Aluminum Alloy with a reinforced 2.52mm wall. Patented one-screw clamp supports 0-13° tilt and 0-24mm offset. Bi-compatible with 7x7mm Steel and 7x9mm Carbon rails. ISO 4210 certified and EPR compliant (Germany/France). Available in 27.2/30.9/31.6mm diameters with CNC shim adapter support.

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® MTB Handlebar Factory - SGS Certified 35mm Riser Bar for Trail Enduro DH OEM Custom

XT-L028 🚵‍♂️ Professional MTB Handlebar Factory (SGS Certified) The industry benchmark for high-performance Aluminium Bicycle Handlebars. Engineered for global brands, this CNC bike parts standard riser bar combines race-optimized geometry with SGS certified durability. 💎 Technical Specifications: ✅ Factory Direct: Leading MTB Handlebar Factory for OEM MTB Parts & bulk orders. ✅ Material: High-strength 6061 Aluminum Bike Parts (Butted for weight-to-strength ratio). ✅ Geometry: 35mm Rise | 6° Backsweep & 6° Upsweep (Ergonomic comfort). ✅ Customization: Bicycle parts custom logo, width, and colors available. ✅ Compliance: SGS Certified & LUCID/EPR compliant for European markets. Contact for Factory Quotes & OEM: 📱 WhatsApp: +86 13798419681

LUNJE® Alloy MTB Handlebar Factory - Mirror-Glossy Reflective Riser Bar (ISO 4210)

NEW XT-L024/028 🌟 LUNJE® Professional Alloy MTB Handlebar Factory 🌟 Combining mirror-polished anodizing with premium factory-baked embossed logos, we set the standard for Aluminium Bicycle Handlebars. 💎 Technical Specifications (ISO 4210 Certified): 🛡️ Material: High-Strength 7075/6061 Aluminum Bike Parts Alloy (T6 Heat Treated) 📏 Clamp Diameter: 31.8mm (Universal Fit for MTB/DH) 📐 Geometry: Professional Riser Handlebar Factory Tapered Design (35mm / 55mm Rise Options) ✨ Finish Tech: Dual-Process (High-Density Mirror Anodizing + Oven-Cured Embossed Logo) ⚖️ Performance: Optimized Strength-to-Weight Ratio; ISO 4210 Compliant for DH/Enduro 🎨 Style: Ultra-Vibrant Colors with 360° High-Intensity Specular Reflectivity 🛠️ B2B & OEM Services: ✅ OEM/ODM: Leading Bike Handlebar Manufacturer for Custom Branding 🏷️ Customization: Bicycle Parts Custom Logo & Laser Engraving Available 📦 Supply: Bike Parts Wholesale & Bulk MTB Components Specialist 📞 WhatsApp: +86-137-9841-9681 🌐 Website: en.koofbike.com #AlloyHandlebarFactory #MTBHandlebar #ISO4210 #CNCbikeParts #BikePartsWholesale #OEMbicycleParts #RiserHandlebar #LUNJE #AluminiumHandlebars #B2Bcycling

LUNJE® High Riser Handlebar Factory - Oil Slick DH Bar 720/780mm (ISO 4210)

XT-L024-027-031: Vibrant Electroplated High-Rise Handlebar 🚴🏻‍♂️LUNJE® Professional Riser Handlebar Factory 🌟 Upgrade your Downhill, Freeride, or All-Mountain setup with LUNJE’s high-strength 6061-T6 aluminum bars. Featuring a stunning chameleon-like finish and massive rise options, these bars deliver the perfect blend of style and structural integrity. 💎 Key Technical Specifications (ISO 4210 Certified): Material: Aerospace-grade 7075/6061 Aluminum Bike Parts Rise Options: 55mm / 90mm / 120mm (High Riser Handlebar Factory Standard) Width: 720mm / 780mm (Stable & Aggressive) Clamp: 31.8mm (CNC Bike Parts Precision Fit) Finish: Vacuum Electroplated (Oil-Slick) + Reflective Safety Decals Service: OEM MTB Parts & Bicycle Parts Custom Logo Specialist Weight: Approx. 365g (780mm version).

LUNJE® CNC Bike Stem Factory - SGS Certified A015B Aluminum MTB Stem OEM

XT-A015B 🏆 Professional CNC Bike Stem Factory (SGS Certified) 💎 Technical Specifications: 🆔 Model: LUNJE® XT-A015B (CNC Bike Stem Series) 🛡️ Material: High-Strength 6061 Aluminum Bike Parts ⚙️ Process: Full 5-Axis CNC Machined & Hollow-Out Design 📏 Extension: 35mm (Optimized for Enduro/Trail Control) ⭕ Clamp: 31.8mm (Standard Aluminium Bicycle Handlebars Fit) 📐 Geometry: 0° Rise | 28.6mm Steerer | 42mm Stack Height ⚖️ Weight: Approx. 124g (Ultra-Lightweight Performance) 🎨 Finish: 10 Anodized Colors (Oil-Slick/Gradient Available) ✅ Service: OEM MTB Parts & Bicycle Parts Custom Logo Specialist 📜 Compliance: SGS Certified Bike Parts & ISO 4210 Compliant Direct Factory Quotes & OEM Support: 📧 E-mail: lunje.bicycle@gmail.com 📱 WhatsApp: +86-137-9841-9681

LUNJE® XT-A032 5-Axis CNC Stem manufacturer - 31.8mm/35mm Ultra Short MTB Stem (ISO 4210) Custom Logo OEM

XT-A032 🚴 35mm Ultra-Short Innovative Stem lightweight hollow structure Ultimate Control Precision 5-axis CNC machined 3D dynamic tiger stripe reduces wind resistance multi-angle refraction upgrade anodization bike industrial aesthetics for MTB DH BMX & Enduro; 🚴Key Innovations: ▸ 35mm ultra-short center (instant steering response), ▸ 5-axis CNC machined from T6 aluminum, ▸ Patent-pending 3D tiger stripe aerodynamics, ▸ Military-grade gradient anodization, ▸ 150g optimized hollow design, 🚴Performance Benefits: ✓ 18% faster steering input， ✓ 15% reduced wind resistance， ✓ 800HV surface hardness， ✓ UCI-certified for pro racing， 🚴Built For Champions In: • Downhill • Enduro • BMX • Technical Trail. 🔥 Why Choose LUNJE? 🚴🏼‍♀Designed for riders who demand instant response and unshakable control on technical trails. 🛠Perfect for OEM brands seeking high-performance, customizable stems with a rugged aesthetic. 🏭 OEM/ODM Solutions: ✓ Multiple lengths & clamp sizes ✓ Custom laser engraving ✓ Bulk pricing for brands, ✓ Rigorous QC testing for impact & fatigue resistance, 📩 Get Your Custom Quote Today! 📧 Email: georgechen@koofbicycle.com 📱 WhatsApp: +86 13798419681 🌐 Website: https://en.koofbike.com/Product_detail/43.html 💬 "Already using our stem ? Share your experience below!" 🚴 Tag us in your setup—we love seeing LUNJE parts in action! 🏷️ Trending Hashtags: #MTBStem #ShortStem #LUNJEStem #OEMSupplier