Packaging Information

Kind reminder, the link to the English version image is: 💎  https://en.koofbike.com/Product_detail/29.html

See It In Action: Watch Our Demo on YouTube ：

🚩 Product Features: LUNJE High-Strength 28.6mm Bike Stem Riser

【Precise Fit & Universal Compatibility】

The LUNJE Bike Stem Riser is engineered for standard 1-1/8" (28.6mm) fork stems, offering seamless compatibility with MTB, Mountain Bikes, Road Bikes, and BMX. Whether for urban commuting or rugged off-roading, our precision-engineered fit eliminates mismatch issues. This reliable upgrade saves you from the hassle of repeated returns, making it the top choice for B2B buyers and DIY cycling enthusiasts.

【6 Precise Lengths for Custom Comfort】

We offer six specific lengths to match every rider's ergonomic needs: 90mm, 115mm, 135mm, 150mm, 180mm, and 210mm. Each extender features clear laser-etched markings, allowing riders to adjust their Handlebar Height freely. From mild lifts to maximum extensions, LUNJE provides the perfect posture optimization for riders of all ages and styles.

【Forged 6061-T6 Alloy: Lightweight & Durable】

Crafted from aerospace-grade Forged 6061-T6 Aluminum Alloy, our stem risers undergo high-precision CNC machining and premium anodization. This ensures exceptional corrosion resistance against rain and mud while maintaining a lightweight profile (113g - 287g). Built to withstand daily bumps and DH-level impacts, the smooth finish ensures durability without damaging your handlebar setup.

【Ergonomic Upgrade: Ride Without Pain】

The LUNJE riser lifts your handlebars to a more upright position, significantly reducing hunching and alleviating strain on the neck, back, and shoulders during long rides. For MTB riders, it improves steering response on rocky trails; for commuters, it makes city navigation more comfortable and effortless. It’s not just an extender—it’s a total ride quality upgrade.

🏭 LUNJE – The Preferred Hardware Factory for Global E-commerce & Top Brands

Since 2012, LUNJE has been a specialized manufacturer providing high-strength, high-aesthetic, and compliant OEM/ODM solutions for world-renowned bicycle brands, large-scale wholesalers, and top-tier sellers on Amazon, Shopee, and Lazada. As a leading Chinese component manufacturer, our production processes strictly align with the technical standards of global tier-1 brands, ensuring you receive world-class performance at Factory-Direct Pricing.

✅ Certified Excellence & Industry Standards

As a full-category supplier of handlebars, stems, and seatposts, our products pass rigorous SGS Fatigue and Strength Testing and fully comply with the ISO 4210 Safety Standard. By utilizing aerospace-grade AL6061-T6 and 7075 alloys, we guarantee maximum safety and durability, protecting your brand's reputation in extreme riding conditions.

🚀 Extreme Efficiency & E-commerce Empowerment

We understand the "Need for Speed" in cross-border e-commerce. For our best-selling series and colorful anodized components, we maintain massive ready-to-ship inventory. We support small-batch trial orders with same-day dispatch. Whether you are building a private label or sourcing wholesale, LUNJE is your most stable supply chain partner in the cycling industry.

🌟 B2B Core Advantages:

Original Patent Protection: With the latest Utility Model Patent, we ensure your distribution business is free from copyright risks. 🛡️

EU Market Access: Registered with ADEME (EPR) in France (since 2023) and compliant with LUCID in Germany. Fully meets EU AGEC act requirements for barrier-free cross-border trade. 🇪🇺

Deep Customization (OEM/ODM): Supporting Logo Customization, specification development, and tailored packaging to boost your brand premium. 🎨

📞 Take Action Now – Get Your Exclusive Profit-Driven Quote!

LUNJE is committed to supporting bike shops, e-bike modifiers, and international distributors with factory-direct pricing and reliable lead times.

Connect with Our Factory Representative:
For bulk pricing, technical drawings, or OEM collaboration, reach out to us directly:

📱 WeChat / WhatsApp: +86 13798419681

📧 Email: lunje.bicycle@gmail.com

🔗 Explore More Products: https://en.koofbike.com/Product/1.html

🔗 Butted Handlebars with Certificates: https://en.koofbike.com/Product/2.html

🔗 Classic Seatposts: https://en.koofbike.com/Product/4.html

👉 Reinforced Riser Bars for Electric Motorcycles:

https://en.koofbike.com/Product_detail/65.html