Ruby Single Speed Freewheel 20T x 1/8 SFW Black - Live4Bikes

Ruby Single Speed Freewheel 20T x 1/8 SFW Black - Live4Bikes

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Title: Ruby FREEWHEEL SINGLE 20T x 1/8 SFW Black: The Pinnacle of Single-Speed Performance


When it comes to single-speed cycling, precision and quality are paramount. The Ruby FREEWHEEL SINGLE 20T x 1/8 SFW Black is a shining example of excellence in cycling components. In this article, we'll take an in-depth look at this remarkable freewheel, exploring its technical specifications, key features, and why it's a wise choice to purchase it from a reputable retailer like Live4Bikes.

The Ruby FREEWHEEL SINGLE 20T x 1/8 SFW Black

Technical Specifications

  • Speeds: Single
  • Size: 20T x 1/8 Inch
  • Model: SFW
  • Type: Standard
  • Color: Black
  • Brand: Ruby

Key Features

  1. Single-Speed Superiority: Designed exclusively for single-speed setups, the Ruby SFW Brown freewheel offers the ultimate in simplicity and efficiency. Whether you're a commuter, a fixed gear enthusiast, or a bike messenger, this component will enhance your ride.

  2. Precision Engineering: The 20T x 1/8-inch sizing and SFW model designation are testaments to the meticulous engineering that goes into every Ruby product. This freewheel is designed to integrate seamlessly into your single-speed drivetrain, ensuring optimal performance.

  3. Durable Construction: Ruby's commitment to quality is evident in the durability of the SFW Brown. Crafted to withstand the demands of daily cycling, it is built to last and provide consistent performance over time.

  4. Standard Compatibility: The standard type of this freewheel makes it compatible with a wide range of single-speed bicycles, offering versatility and ease of installation. It's the perfect choice for those looking to upgrade their bike or build a custom single-speed rig.

  5. Rich Brown Finish: Beyond its technical excellence, the SFW Brown also boasts an attractive brown color, adding a touch of style to your bike while complementing various frame designs and aesthetics.

Why Purchase from Live4Bikes?

When investing in cycling components, choosing a trusted retailer is essential to ensure that you receive genuine products and excellent customer service. Live4Bikes is a reputable cycling retailer that consistently delivers high-quality products and outstanding customer support. Here's why you should consider purchasing the Ruby FREEWHEEL SINGLE 20T x 1/8 SFW Brown from Live4Bikes:

  1. Product Authenticity: Live4Bikes is committed to providing authentic and genuine cycling components. When you buy from them, you can be confident that you're receiving a Ruby SFW Brown freewheel that meets the highest standards of quality.

  2. Expert Guidance: Live4Bikes' staff comprises cycling enthusiasts with a wealth of knowledge. They can offer expert advice and recommendations tailored to your specific needs, ensuring you make the right choice for your single-speed setup.

  3. Wide Product Selection: Live4Bikes offers a diverse range of cycling products, making it a one-stop shop for all your biking needs. This extensive selection simplifies your shopping experience and allows you to explore various options.

  4. Customer-Centric Approach: Live4Bikes prides itself on excellent customer service. They are responsive to inquiries, facilitate hassle-free returns, and are dedicated to ensuring your satisfaction as a customer.

  5. Competitive Pricing: While quality is paramount, Live4Bikes understands the importance of affordability. They strive to offer competitive prices on their products, making high-performance cycling components accessible to a wide range of riders.


For single-speed cycling enthusiasts, the Ruby FREEWHEEL SINGLE 20T x 1/8 SFW Brown represents the pinnacle of performance and precision. This freewheel is designed to elevate your riding experience with its durability and compatibility. When you choose to purchase it from Live4Bikes, you not only gain access to a top-tier product but also benefit from the expertise and commitment to customer satisfaction that this reputable retailer provides. Elevate your single-speed adventures with the Ruby SFW Brown and enjoy the simplicity and reliability it offers.



 A Comprehensive Guide to Bicycle Cassettes: Finding the Right One for Your Ride

Bicycle cassettes play a crucial role in determining the performance and efficiency of your ride. With various options of bicycle cassettes available in the market, selecting the right cassette can be a daunting task. In this guide, we will explore how to find the perfect bicycle cassettes for your needs, understand the difference between a cassette and freewheel, explore the impact of the number of teeth on gear ratio, and discuss the requirements when converting to a 1x drivetrain.

1. Cassette vs. Freewheel:

Before delving into cassette selection, it's essential to understand the difference between a cassette and a freewheel. Both components are found in the rear wheel hub and consist of a set of sprockets that engage with the bicycle chain. However, a cassette is a separate unit, while a freewheel combines the sprockets with the freewheeling mechanism. Most modern bikes use cassettes due to their improved performance, easier maintenance, and the ability to interchange gear ratios more efficiently.

2. Choosing the Right Cassette:

When selecting a cassette, consider factors such as the terrain you'll be riding on, your fitness level, and your bike's drivetrain compatibility. Cassettes come in various speeds, ranging from 7 to 12 speeds, each offering a different number of sprockets. The more sprockets a cassette has, the narrower the gaps between gears, providing smoother gear transitions.

3. Understanding Gear Ratio and your cassette . 

The gear ratio refers to the relationship between the number of teeth on the front chainring and the rear cassette sprockets. A cassette with a wide range of teeth, such as an 11-32T, provides a broad selection of gears suitable for climbing steep hills and tackling challenging terrains. On the other hand, a narrow range, like an 11-23T, is ideal for flat roads and high-speed riding.

4. Transitioning to a 1x Drivetrain and cassettes 

A 1x drivetrain eliminates the front derailleur and offers a simplified setup with a single front chainring and a wide-range cassette at the rear. When converting to a 1x drivetrain, it's essential to choose the appropriate front chainring size to maintain a suitable gear range. Riders seeking versatility may opt for a larger front chainring, like a 38T or 40T, while those who prioritize climbing and off-road riding might choose a smaller chainring, such as a 30T or 32T. Also keep in mind that adding more teeth to the low gears will have its limits depending on the length of your rear derailleur.  For example a 11-42t cassette will need a long cage derailleur.  There is short , mid and long rear derailleurs. 

Selecting the right bicycle cassette is paramount to enhancing your cycling experience. With an understanding of cassette vs. freewheel distinctions, the impact of the number of teeth on gear ratio, and the requirements for transitioning to a 1x drivetrain, you can make an informed decision. Consider your riding style, terrain, and desired performance to find the perfect cassette that suits your needs. Whether you're a seasoned cyclist or a beginner, having the right cassette can significantly improve your efficiency, comfort, and enjoyment on the road or trail. Happy cycling!