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Dual-Pivot Adjustable Stem

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LUNJE XT-A139 Double Adjustable Bike Stem: 25.4mm CNC Aluminum Dual-Pivot Stem for Kids' Bikes, Folding Bikes & E-bikes - Reach & Height Extension Cockpit Upgrade

LUNJE XT-A139 Double Adjustable Bike Stem: 25.4mm CNC Aluminum Dual-Pivot Stem for Kids' Bikes, Folding Bikes & E-bikes - Reach & Height Extension Cockpit Upgrade


XT-A139 CNC Material: AL 6061-T6 Feature: CNC machined Ext Length: 45mm Caliber: 25.4mm Angle: 0° Height: 40mm Weight:125g Color: Anodized four color option

Keyword:

LUNJE XT-A139

Double Adjustable Stem

Dual-Pivot Adjustable Stem

Folding Bike stem

Kids' Bike stem

Reach & Height Extension

Cockpit Upgrade

Highly adjustable stem for growth

folding bike stem upgrade

6061 alloy stem

CNC alloy stem

25.4mm handlebar clamp

Wholesale Bicycle Components

Latest Products

LUNJE Mountain Bike Handlebar Downhill Off-Road Aluminum Alloy Riser Handlebar 780mm Handlebar Width Bicycle Accessories

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

LUNJE P003 Suspension Seatpost MTB Road Bicycle Shock Absorber Damping Seat Post Adjustable Preload Alloy Tube 27.2/28.6/30.4/30.9/31.6mm

Ultralight Aluminum Bicycle Water Bottle Cage for Mountain & Road Bikes 22g CNC Alloy Holder

Bicycle pedals, mountain bike bearing pedals, road bike aluminum alloy pedals, bicycle accessories

LUNJE® XT-A822 Adjustable Bike Stem | ±85 Degree 3D Forged Handlebar Riser | 90-145mm Alloy Stem for E-Bike & MTB

LUNJE A001 3D Forged MTB Stem 31.8mm | ±10 17 25 35 Degree Mountain Bike Riser Stem | 60-110mm Lightweight Hollow Stem | Factory OEM Bulk Price

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

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

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

Latest News

Industry Report: The Rise of Double Adjustable Stems in the High-End Kids' Bike Market

2026 Cycling Peak Alert: Beating the CNY Shutdown & Migration Crunch — Why LUNJE Components are the "Hard Currency" of Global Trade This Year

From Eurobike Germany to Canton Fair China: The Global Brand Evolution of LUNJE—The Original Factory

LUNJE Global Influencers: Professional Riders’ Choice for Handlebars Stems Seatpost Bottlecage

LUNJE XT-A037 MTB Stem | Heavy-Duty 35mm CNC Stem with M6 Bolts for E-MTB & DH

The Ultimate MTB Handlebar Guide: 7075 Aluminum vs. Carbon Fiber | LUNJE Factory Analysis

Contact Information

+8618988779696

leedr@koofbicycle.com

Building 3, 4th Floor, Pufite Technology Park, Dalang Street, Longhua District, Shenzhen

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