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 31.8mm Shock Absorber Bike Stem for Mountain/Gravel/Road upgrade Lightweight Aluminum Handlebar Stem OEM direct Bicycle Accessories

Adjustable shock absorber suspension Stem XT-A829 Material: AL 6061-T6 Caliber: 31.8mm Length: 60/ 70/80/90/100/ 110mm (optional) Adjustable Angle: 0~60° (optional) Color:Black/Purple anodized Surface Feature: 3D forging process Steerer: 28.6mm Built-in Spring: soft/hard optional

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; 🛠Material: AL 6061-T6, Feature: Precision CNC engraving to match your bike's luxury upgrade , Ext Length: 35/45mm, Caliber: 31.8/35mm, Angle: 0°, Steerer: 28.6mm, Height: 40mm, Weight:145g(45mm), Color: Black silver purple option Upgrade your bicycle's aesthetics, 👑 Elevate your brand value: Elevate your bike's premium feel with CNC precision-engraved handlebar stems. 🚴 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: api.whatsapp.com/send?phone=8613798419681

LUNJE Ultra-Light MTB Stem OEM Manufacturer 145g CNC-Machined Aluminum with Titanium Screws Zero-Flex One-Piece Molding High-Strength handlebar Stems for Extreme Riding Downhill Enduro Anodized Bicycle Stem OEM supplier Bulk 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; Material: AL 6061-T6, Feature: Precision CNC engraving to match your bike's luxury upgrade , Ext Length: 35/45mm, Caliber: 31.8/35mm, Angle: 0°, Steerer: 28.6mm, Height: 40mm, Weight:145g(45mm), Color: Black silver purple option Upgrade your bicycle's aesthetics, 👑 Elevate your brand value: Elevate your bike's premium feel with CNC precision-engraved handlebar stems. 🚴 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: api.whatsapp.com/send?phone=8613798419681

LUNJE bicycle Ultra-Stiff MTB Stem OEM Manufacturer Ultra-Light CNC Aluminum Short Stem with Titanium Screws Aggressive Geometric handlebar Stem aesthetics Zero-Flex Construction for DH/Enduro/BMX Stem upgrage OEM Supplier Bulk for Bike Shops

XT-A031🧐 Aggressive Angular Geometric Design for Maximum Stiffness Stealth Black Anodized Finish MTB Short Stem – 160g Ultra-Light Aluminium Alloy CNC-One-piece molding with Titanium Hardware Screws Zero-Flex Durable & Stylish for MTB, DH, BMX & Enduro； Material: AL 6061-T6, 🔥Feature: Precision CNC engraving to match your bike's luxury upgrade, Ext Length: 45mm, Caliber: 31.8mm, Angle: 0°, Steerer: 28.6mm, Height: 40mm, Weight:160g(45mm), Color: Black silver purple option Upgrade your bicycle's aesthetics, 👑 Elevate your brand value: Elevate your bike's premium feel with CNC precision-engraved handlebar stems. 🚴 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: api.whatsapp.com/send?phone=8613798419681 #FYP #AluminumStem #LightweightStem #StemSwap #AeroStem #EnduroStem #ShortStem #StiffStem #35mmStem #UltraShortStem #StemInnovation #AgileHandling #5axisCNCmachined #UpgradeYourRide #handlebars #trekkingbar #BentHandlebar #riserBar #MTBbar #DropBar #touringBike #ButterflyBar #FlatBar

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.