LUNJE Mountain Bike Bicycle Stem Riser, Fork Riser, Headset Extender, Bicycle Accessories OEM Manufacturer

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 🌐 Website: https://en.koofbike.com/ 💬 "Already using our stem riser? Share your experience below!" 🚴 Tag us in your setup—we love seeing LUNJE parts in action! #StemRiser #HandlebarRiser #MTBAccessories #BikeComfort #UpgradeYourRide #6061Aluminum #OEMBikeParts #MTBUpgrades #CyclingErgonomics #BikeFit #GravelBike #EnduroReady #RideHigher #BikeTech

LUNJE MTB Adjustable Stem New Design Bicycle Handlebar Stem Source Factory Plus or Minus 80 Degrees

Adjustable stem XT-A822 Material: AL 6061-T6 Caliber: 31.8mm Length: 90/110/130/ 145mm (optional) Angle: 0~85° (optional) Color:Black/Purple anodized Surface Feature: 3D forging process Steerer: 28.6mm

LUNJE Mountain Bike Stem OEM supplier Angle 10/17/25/35° Riser Aliminum Alloy 3D forged Hollow Bicycle Accessories

Forged Bicycle stem XT-A001D Material: AL 6061-T6 Caliber: 31.8mm Length: 60/ 70/80/90/100/ 110mm (optional) Angle: 10/ 17/ 25/ 35° (optional) Color: Surface frosted anodized Steerer: 28.6mm Feature: 3D forged, light weight,high strength Through continuous process innovation and collaboration with top brands, we deliver high-end products tailored to your niche market—ensuring your long-term value and brand premium. Check out new models designed for your specific needs. We are your trusted OEM partner 💐E-mail‌: georgechen@koofbicycle.com; ‌ 🚴WhatsApp‌: +86 13798419681; Best regards

LUNJE mountain bike stem OEM factory hollow integrated column downhill short stem 31.8*45mm bicycle accessories

Classic Bestselling Model: XT-A089 Material: Aluminum Alloy Features: CNC Machining Specifications: 31.8*45mm Through continuous process innovation and collaboration with top brands, we deliver high-end products tailored to your niche market—ensuring your long-term value and brand premium. Check out new models designed for your specific needs. We are your trusted OEM partner 💐E-mail: georgechen@koofbicycle.com; 🚴WhatsApp: +86 13798419681; Best regards

LUNJE 31.8 Mountain Bike Stem Aluminum Forging Roadbike Parts 35mm Super Light Adjustable Riser Bicycle Stem

Adjustable Stem XT-A820 Material: AL 6061-T6 Caliber: 25.4/ 31.8mm Ext length: 90/100/ 110mm (optional) Adjustable Angle: 0~60° (optional) Color:Black/Purple anodized Surface Feature: 3D forged Steerer: 28.6mm Height: 35mm

LUNJE Special Offer Mountain Road Bike Riser Ultra Light Aluminum Alloy 7 Degrees 25.4/31.8mm Plus and Minus Angle 3D forged Stem OEM Manufacturer

3D forged Bicycle stem XT-A007D Material: AL 6061-T6 Caliber: 25.4mm（31.8option） Length: 50/60/70/80mm (optional) Angle: 7° Color: Matte black anodized Feature: 3D forging process Steerer: 28.6mm Height: 40mm Through continuous process innovation and collaboration with top brands, we deliver high-end products tailored to your niche market—ensuring your long-term value and brand premium. Check out new models designed for your specific needs. We are your trusted OEM partner 💐E-mail‌: georgechen@koofbicycle.com; ‌ 🚴WhatsApp‌: +86 13798419681; Best regards

LUNJE Bicycle Short Stem Mountain Bike Stem OEM Manufacturer Lightweight Handlebar Riser CNC Aluminum Alloy 31.8mm Bicycle Parts Stem

CNC Bicycle stem XT-A015B Material: AL 6061-T6 Feature: CNC machined Ext Length: 35mm Caliber: 31.8mm Angle: 0° Steerer: 28.6mm Height: 42mm Weight:124g Color: Anodized ten color option (Monochromatic/ two-tone gradient‌/ Iridescent) Through continuous process innovation and collaboration with top brands, we deliver high-end products tailored to your niche market—ensuring your long-term value and brand premium. Check out new models designed for your specific needs. We are your trusted OEM partner 💐E-mail‌: georgechen@koofbicycle.com; ‌

LUNJE Adjustable Suspension Stem OEM factory 31.8mm Shock Absorber Bike Stems for Mountain/Gravel/Road upgrade Lightweight Aluminum HandlebarStem OEM direct Bicycle Accessories

3D forged XT-A829🚵 Adjustable Suspension Stem 31.8mm Shock Absorber Bike Stem for MTB/Gravel/Road Lightweight 6061-T6 Aluminum OEM Direct 🚀 LUNJE Suspension Stem Conquer Rough Terrain with Pro-Level Vibration Damping 💎 Key Innovations: ✓ Smart Suspension System – Soft/Hard spring options absorb 30% trail vibrations, ✓ Aerospace Engineering – 3D-forged 6061-T6 aluminum with 40% increased strength-to-weight ratio, ✓ Multi-Angle Adjustment – 0-60° customizable rise for perfect fitment, ✓ All-Bike Compatibility – Fits 28.6mm steerer tubes (MTB/Gravel/Road), 🔧 Technical Specs: • Material: 3D-forged AL 6061-T6 • Clamp Diameter: 31.8mm • Length Options: 60/70/80/90/100/110mm • Steerer: 28.6mm • Color: Black/Purple anodized 🔥 Pro Rider Approved: "Our team reduced arm fatigue by 45% on Paris-Roubaix cobbles with LUNJE Harmonic Damping stems" 🏭 OEM/ODM Services: ✓ Custom length/angle combinations ✓ Laser engraving ✓ Spring rate customization ✓ MOQ 50 units 📩 Limited Engineering Support: 👉 First 10 inquiries: Free vibration test video, 📞 Contact Our Tech Team: 📧 Email: georgechen@koofbicycle.com 📱 WhatsApp: +86 13798419681 🌐 Full Tech Pack: https://en.koofbike.com/Product_detail/15.html 💬 Rider Testimonial: "Zero wrist pain since switching to LUNJE – game changer for endurance races!" @GravelExplorer 🎯 Engineer Notes: • Compatible with 99% of 28.6mm steerer forks • Spring replacement recommended every 5,000km ⚠️ Warning: May cause intentional detours to rough terrain! 🏷️ Trending Hashtags: #SuspensionStem #VibrationDamping #GravelBikeUpgrade #3DForged #AdjustableStem #ProCyclingTech #MTBComfort #OEMComponents #EnduroEssentials #ParisRoubaixTested #BikeSuspension

LUNJE CNC-Textured Hollow Forged MTB Stem OEM Supplier & Manufacturer 31.8mm handlebar short stem OEM Direct Lightweight bicycle stems with Optimized handling Industrial Aesthetics Meets Stable Riding for All-Mountain/Downhill/Enduro bike stem

XT-A027🚴 CNC Short Stem 45mm CNC Aluminum Alloy 31.8mm Lightweight Hollow aerodynamic Design Agile handling All-Mountain biking​​ Downhill​​ Enduro Climbing ​Improved stability  Lower center of gravity; 🚀 LUNJE CNC-Textured MTB Stem – Precision Engineered for Aggressive Riding, 💎 Key Innovations: ✓ Ultra-Light & Durable – Hollow forged 6061-T6 aluminum with CNC-textured finish for enhanced grip and stiffness. ✓ Optimized Handling – Short stem design (31.8mm) for razor-sharp steering control in All-Mountain/Downhill/Enduro. ✓ Industrial-Grade Strength – Reinforced clamping area ensures maximum stability under heavy loads. ✓ Sleek & Functional – Matte CNC-machined surface resists scratches while complementing high-end builds. 🔥 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/ 💬 "Already using our stem ? Share your experience below!" 🚴 Tag us in your setup—we love seeing LUNJE parts in action! 🏷️ Trending Hashtags: #MTBStem #ShortStem #DownhillReady #EnduroBike #CNCForged #LUNJEStem #OEMSupplier #BikeTechUpgrade #handlebarStem #IndustrialDesign #RideHarder #CustomComponents #CNCStem #EnduroReady #6061T6 #LightweightStem #BikeUpgrade #GravelBike #AnodizedLuxury

LUNJE Ultra Light High-Strength MTB Stem OEM Manufacturer 1-Piece Forged CNC Aluminum with Titanium Bolts Zero Flex Design for Downhill/Enduro/DH Anodized Bicycle Stem Bulk Supplier for Bike Brands & Shops

XT-A030High-Strength Design with Titanium Alloy Screws – Premium CNC-Machined Bicycle Stem for Extreme Riding, Rainbow Anodized Finish One-piece molding Zero-Flex Durable & Stylish for MTB, DH, BMX & Enduro Lightweight 145g Ultra-Light; 🚀 LUNJE CNC-Textured MTB Stem – Precision Engineered for Aggressive Riding, 💎 Key Innovations: ✓ Ultra-Light & Durable – Hollow forged 6061-T6 aluminum with CNC-textured finish for enhanced grip and stiffness. ✓ Optimized Handling – Short stem design (31.8mm) for razor-sharp steering control in All-Mountain/Downhill/Enduro. ✓ Industrial-Grade Strength – Reinforced clamping area ensures maximum stability under heavy loads. ✓ Sleek & Functional – Matte CNC-machined surface resists scratches while complementing high-end builds. 🔥 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/ 💬 "Already using our stem ? Share your experience below!" 🚴 Tag us in your setup—we love seeing LUNJE parts in action! 🏷️ Trending Hashtags: #MTBStem #ShortStem #DownhillReady #EnduroBike #CNCForged #LUNJEStem #OEMSupplier #BikeTechUpgrade #handlebarStem #IndustrialDesign #RideHarder #CustomComponents #CNCStem #EnduroReady #6061T6 #LightweightStem #BikeUpgrade #GravelBike #AnodizedLuxury

35mm Clamp MTB Stem Ultra-Stiff & Lightweight CNC Aluminum Short Handlebar Stems Aggressive geometry Titanium screws Zero-Flex construction for DH/Enduro/BMX/FR/XC, OEM Manufacturer LUNJE for 31.8 Stem upgrade

XT-A031🚀 LUNJE Aggressive Geometry MTB Stem – Precision Engineered for Aggressive Riding Maximum Stiffness Stealth Black Aluminium One-piece molding with Titanium Hardware Screws Zero-Flex Durable & Stylish for MTB, DH, BMX & Enduro； 💎 Key Innovations: ✓ Ultra-Light & Durable. ✓ Optimized Handling – Short stem design. ✓ Industrial-Grade Strength ensures maximum stability under heavy loads. ✓ Sleek & Functional – Matte CNC-machined surface resists scratches. 🔥 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/ 💬 "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

LUNJE bicycle Innovative 35mm Ultra Short Stem Ultimate Control OEM Supplier lightweight 31.8mm Aluminum Alloy 5axis CNC machined bikestems OEM Manufacturer 3D stripe Low winddrag upgrade bike handlebar Stem aesthetics Parts for MTB DH BMX & Enduro

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

LUNJE Forged MTB Stem 45mm OEM High-Strength Aluminum Short Stem, 31.8mm Handlebars, 1-1/8" Steerer, Lightweight for Downhill Enduro

XT-A109 🏭 OEM CUSTOMIZATION: Maximize safety and minimize weight with our one-piece forged construction. Without welds or joints, this stem offers superior strength and rigidity for aggressive riding. Features a precision 28.6mm steerer clamp for a perfect fit on most modern MTBs. Short stems make the steering direct and immediate Built to handle the demands of DH and Enduro racing Freeride.

LUNJE ±15° duotone gradient Bicycle Stem OEM Lightweight Aluminum Alloy Forged 31.8mm Rainbow Short Stem for MTB, Downhill & Climbing - Front Fork Caliber 28.6mm Compatible

XT-A012 ✅ Lightweight & Durable: Crafted from forged aluminum alloy, this stem offers exceptional strength and rigidity while minimizing weight, perfect for aggressive riding. ✅ ±15° Angle Adjustment: Provides versatile positioning for optimized comfort and control, whether for aggressive downhill descents or efficient climbing. ✅ Striking Aesthetic: Features a unique duotone rainbow gradient finish, adding a bold and stylish look to your mountain bike. ✅ Precision Fit: Designed with a 31.8mm handlebar clamp and compatible with a standard 28.6mm (1-1/8") front fork steerer tube, ensuring a secure and reliable connection. ✅ Versatile Application: The ideal upgrade stem for MTB, enduro, downhill, trail, and all-mountain bicycles, enhancing handling and performance on any terrain.

Lunje CNC MTB Stem 45mm Short High-Strength Aluminum Bicycle Handlebar Stem for Road Bike, Racing, Downhill & MTB 28.6mm Fork Compatible 31.8mm Lightweight 130g two color gradient integrated stems OEM

XT-A014 ✅ Hollow Design - Reduces weight, boosts performance. ✅Anodized Finish - Fade-proof, waterproof, rust-resistant. ✅6061-T6 Aluminum - High-strength, corrosion-resistant. ✅CNC Machined - Precise fit, reliable handling. ✅Ultra-Lightweight - Only 129g, improves responsiveness.