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Load image into Gallery viewer, Promax MQ-579-5 Adjustable Quill Stem - 110mm, Black
Load image into Gallery viewer, Promax MQ-579-5 Adjustable Quill Stem - 110mm, Black

SKU: STEM1521

Promax MQ-579-5 Adjustable Quill Stem 110mm Aluminum Black - 90-140 Swing Angle, Quick-Release Handlebar Height Adjustment, Lightweight Durable Cycling Stem for Road and Mountain Bikes

Regular price $58.01
$61.95 Sale price $58.01 Regular price
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Description
Specifications

Upgrade your bike's cockpit with the Promax MQ-579-5 Adjustable Quill Stem - a versatile and performance-driven component designed for optimal comfort and control. Crafted from lightweight, high-strength aluminum, this 110mm stem delivers durability and reliable performance for a variety of riding styles, including road, mountain, and commuter cycling.

### Materials & Construction

Made from premium corrosion-resistant aluminum, the Promax MQ-579-5 features a sleek black finish that not only enhances aesthetics but also withstands harsh riding conditions. The quill insert design ensures a secure fit within your fork steerer tube, providing stability and safety during intense riding sessions.

### Performance & Engineering

Engineered with an adjustable angle range of 90 to 140 degrees, this stem allows riders to customize their handlebar height and reach for personalized ergonomics. Its quick-release mechanism facilitates easy adjustments on the go, promoting better rider comfort, enhanced handling, and improved riding posture.

### Components & Technology

The MQ-579-5 is equipped with a 25.4mm bar clamp diameter compatible with standard handlebars, and a 25.4mm-24tpi Quill stem clamp diameter for seamless integration into most bicycle fork steerer tubes. Its precise engineering ensures a secure connection between handlebars and fork, minimizing flex and maximizing control.

### Style & Use Case

Designed for riders seeking adjustable handlebar positioning, the black anodized finish offers a sleek, professional look that complements both modern and classic bicycle aesthetics. Ideal for mountain biking, road cycling, and hybrid bikes, this adjustable stem is perfect for riders who want to fine-tune their setup for peak comfort and performance.

### Innovative Features

- Adjustable Angle Range (90 - 140 ): Customize handlebar height and reach for optimal riding ergonomics.

- Secure Quill Insert Design: Ensures consistent, secure attachment within the fork steerer tube.

- Lightweight Aluminum Construction: Combines strength with weight savings for improved ride efficiency.

- Easy-to-Use Adjustment Mechanism: Quickly modify handlebar position without tools, perfect for on-the-fly bike setups.

Upgrade your bicycle with the Promax MQ-579-5 Adjustable Quill Stem for a combination of durability, adjustable comfort, and enhanced control. Whether for daily commuting, mountain adventures, or road cycling, this versatile stem is your key to a more enjoyable ride.

  • Premium Aluminum Construction: Crafted from lightweight and durable aluminum, the Promax MQ-579-5 Adjustable Quill Stem offers excellent strength and corrosion resistance for reliable performance on every ride.
  • Adjustable Angle Range: Features a versatile 90 to 140-degree tilt, allowing riders to easily customize handlebar height and angle for maximum comfort, control, and ergonomic riding position.
  • Quick-Adjust Design: Designed with user convenience in mind, this stem enables fast, tool-free adjustments to your handlebar height, making it ideal for commuters, mountain bikers, and recreational riders seeking personalized fit.
  • Universal Compatibility & Secure Fit: Compatible with 25.4mm bar clamp diameter and standard 25.4mm quill insert, ensuring seamless integration with a wide range of bicycles and providing a secure, wobble-free connection for confident handling.
  • Sleek Black Finish & Versatile Style: Boasts a modern black anodized finish that complements any bike aesthetic; perfect for upgrading your cockpit or customizing your ride for both style and function.
Bar Clamp Diameter (mm)25.4
ColorBlack
Defined ColorBlack
Length110
MaterialAluminum
S.H.I.S. Stem Clamp Diameter25.4-24tpi Quill
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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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