LUNJE® XT-A136 Patented 2-in-1 MTB Stem Fits 35mm & 31.8mm Bars with Adapter CNC Alloy Riser for DH, Enduro & E-MTB OEM Factory Direct-Shenzhen Hanhongxin Precision Technology Co., Ltd

language
- Chinese
- English
- Russian
- Español
- Deutsch
- Português

Home

LUNJE® XT-A136 Patented 2-in-1 MTB Stem Fits 35mm & 31.8mm Bars with Adapter CNC Alloy Riser for DH, Enduro & E-MTB OEM Factory Direct

A136🚴‍♀️This is an ultra-short stem with a 35mm clamp diameter and 35mm length. With the growing popularity of carbon fiber mountain bikes—and some concerns about their strength—many carbon handlebars have adopted a 35mm clamp to increase stiffness. This colorful 35mm aluminum stem is the perfect match for these riders and pairs seamlessly with Alu handlebars like the L035 model, which features the corresponding 35mm clamp diameter. 👉 Product link: https://en.koofbike.com/Product_detail/66.html ：https://en.koofbike.com/Product_detail/80.html To be fully transparent, we have ready stock of the A136 stem in multiple colors, but its sales performance has fallen short of expectations. As a result, we've introduced an adapter plate to make it compatible with the mainstream 31.8mm handlebars. Honestly, it remains one of the most beautiful and affordable 35mm stems on the market. So, where is the real market for 35mm handlebars and matching stems? Perhaps there’s a niche we haven’t yet discovered. I’d love to hear your thoughts! WhatsApp: +86 13798419681 (George) ：#35mmStem #MTBStem #CarbonFiberBike #BikeStem #MountainBikeParts #BikeUpgrades #GravelBike #EnduroBike #OEMBike #BikeTech #CyclingComponents #HardtailBike #CustomBike #BikeLife #MTBLife

Product Description

See It In Action: Watch Our Demo on YouTube：

🚴‍♀️ Build Your Ultimate 35mm Cockpit

To experience the full precision and stiffness of the XT-L035 handlebar, we highly recommend pairing it with our professional-grade 35mm CNC stems.

XT-L035 handlebar： https://en.koofbike.com/Product_detail/66.html

Upgrade Without Limits: Buy the XT-A136 35mm Stem and get the 31.8mm Adapter for FREE!

🚀 XT-A136: The Ultimate "Universal" 35mm Gravity Stem

One Stem, Two Standards. The XT-A136 is uniquely engineered to bridge the gap between 35mm and 31.8mm handlebar standards, making it the most versatile cockpit component in your lineup.

Why the XT-A136 is a Game-Changer:

🏆 Innovative Dual-Compatibility: This is the only model in our collection that comes with a precision-engineered adapter. Use it as a rock-solid 35mm gravity stem, or insert the adapter to perfectly fit 31.8mm handlebars. One SKU, two markets.

Ultra-Short 35mm Reach: Designed for the modern geometry of Enduro and DH bikes. The 35mm length delivers snappier handling and quicker steering response, especially on carbon fiber or long-wheelbase frames.

Carbon-Friendly Engineering: As more riders shift to 35mm carbon bars for increased stiffness, the XT-A136 provides the wide, secure clamping area needed to protect carbon structures while maximizing rigidity.

Boutique CNC Aesthetics: Extensive CNC hollow-out machining reduces every unnecessary gram while maintaining an aggressive, high-end look. Available in multiple vibrant anodized colors.

Market-Leading Value: While most 35mm stems are priced as "premium-only," the XT-A136 offers top-tier CNC performance at a factory-direct price point that is unbeatable in the current market.

Technical Specs:

Clamp Diameter: 35mm (Native) / 31.8mm (with Adapter)

Length: 35mm

Material: 3D Forged + CNC AL6061-T6

Application: AM / Enduro / DH / E-MTB

Official Platform of the China National Intellectual Property Administration (CNIPA)

Visit the China Patent Publication Announcement Network (http://epub.cnipa.gov.cn/).

Enter the patent number CN202130024052.3 in the search box to query.

🔥 Why This Stem Dominates OEM Orders

1. ENGINEERED LIGHT, BUILT STRONG
• True Hollow-Out CNC Design: 5-axis machining removes every possible gram without sacrificing DH-level stiffness—no fake cutouts or cosmetic gimmicks.
• Short & Aggressive Geometry: 35mm/45mm lengths deliver instant steering response for technical trail and enduro riding.
• Aircraft-Grade 6061-T6: Heat-treated and CNC-finished for the optimal balance of strength and fatigue resistance.

2. SGS-CERTIFIED & MARKET-PROVEN
• Independently Verified: Tested to exceed ISO 4210 standards for load, fatigue, and safety.
• 5 Years of Real-World Validation: Trusted by downhill racers, enduro teams, and volume brands globally.
• Zero Compromise Reliability: Every stem is torque-tested and inspected before shipment.

3. STRATEGIC PARTNER PROTECTION
• Exclusive Series for Distributors: Differentiated A/B versions prevent cross-market competition and protect your margins.
• Full EU/US Compliance: LUCID-registered (VerpackG) and EPR-ready for seamless import into regulated markets.
• True Factory-Direct Pricing: No brokers or middlemen—work directly with our engineering team on custom solutions.

📈 Source Factory OEM ADVANTAGE

For Brands & Volume Buyers:
✔ Low MOQ Customization: Laser etching, color matching, packaging
✔ Tiered Pricing Scales: Competitive margins at every volume level
✔ Technical Partnership: Co-develop exclusive stem variations
✔ Stock & Just-in-Time Programs: Reliable supply with flexible terms

🚀 READY TO LAUNCH YOUR STEM LINE?

Contact George, OEM Manager:
📱 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

25.4mm Series Handlebar (30-190mm High Rise) : https://en.koofbike.com/Product_detail/21.html

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

2026 New adjustable Seatpost: https://en.koofbike.com/lunje-patented-adjustable-seatpost-factory

👉 Reinforced Riser Bars for Electric Motorcycles:

https://en.koofbike.com/Product_detail/65.html
🌐SGS Certified LUCID Compliant for You : https://en.koofbike.com/Product_detail/68.html

LUNJE Factory is seeking strategic partnerships with brands and distributors. Let’s build a strong brand together. Wishing our partners great success and prosperity! 🤝

Material Download

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

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.