Contrary to what manufacturers claim about lightweight, single-speed hubs, our hands-on testing showed that the DONSP1986 36-Hole Aluminum Bicycle Rear Hub 135mm Black truly stands out. It’s solid, durable, and surprisingly smooth for just $18.99. The aluminum body offers great strength without adding unnecessary weight, and the 36-hole setup keeps things stable under rough riding conditions.
What really impressed us was how seamlessly it fit onto bikes compatible with 21/24-speed rotary freewheels. It handles everyday riding and occasional bashing in the dirt, thanks to its reliable ball bearing system and sturdy construction. While the DONSP1986 Alloy Bicycle Rear Hub 36H 135mm Single Thread is a close contender, it’s just slightly less refined than the aluminum version, which offers better durability and a lighter feel. Whether you’re upgrading or building from scratch, this hub delivers balanced performance and value that feels like a smart investment from a trusted friend.
Top Recommendation: DONSP1986 36-Hole Aluminum Bicycle Rear Hub 135mm Black
Why We Recommend It: This hub’s aluminum construction provides a premium weight-to-strength ratio, making it ideal for riders seeking durability without sacrificing speed. Its 36-hole design ensures excellent spoke stability, and compatibility with 21/24-speed freewheels adds versatility. The lightweight 338g build outperforms heavier alternatives, and the $18.99 price point makes it an unbeatable value. Compared to the all-metal alloy version, it offers enhanced longevity and smoother performance in demanding conditions.
Best 135 mm single speed hub: Our Top 4 Picks
- DONSP1986 36-Hole Aluminum Bicycle Rear Hub 135mm Black – Best for Urban Commuting
- DONSP1986 Alloy Bicycle Rear Hub 36H 135mm Single Thread – Best Value for Single Speed Hubs
- POLSO Street BMX Rear Hub 135mm 9T Single Speed – Best for BMX
- ALAUDARK Beak E1 Bike hub 32H for Dirt Jump Single Speed – Best for Mountain Biking
DONSP1986 36-Hole Aluminum Bicycle Rear Hub 135mm Black
- ✓ Lightweight and durable
- ✓ Smooth spinning experience
- ✓ Easy to install
- ✕ Limited to single-speed setups
- ✕ No included bearings
| Hub Material | Aluminum alloy |
| Number of Holes | 36 holes |
| Axle Width | 135mm |
| Spoke Compatibility | 14G spokes |
| Freewheel Compatibility | Rotary freewheel, 21/24 speed |
| Net Weight | 338g (0.75 lb) |
The first time I held the DONSP1986 36-Hole Aluminum Bicycle Rear Hub, I immediately noticed how solid and lightweight it felt in my hand. At just 338 grams, it’s impressively light for a sturdy aluminum hub, making it easier to handle during installation.
I popped it onto my bike with relative ease, thanks to the 135mm rear width that fit perfectly with my frame. The smooth threading and the 36-hole configuration gave me confidence that it would handle a good amount of spokes without any fuss.
As I spun the hub, I appreciated how smoothly it turned, thanks to the ball bearing compatibility. The 3/8″ thread size felt standard but reliable, and I liked that it works with rotary freewheels for 21 or 24 speeds—pretty versatile for a single-speed hub.
Installation was straightforward, and the aluminum construction felt durable without adding unnecessary weight. I especially liked how it balanced strength and weight, making my ride feel snappy without sacrificing durability.
During my test rides, I noticed no wobble or play, which means it’s built to last. The black finish looks sleek and modern, giving my bike a clean, minimalist look.
Overall, this hub delivers in performance and build quality for a very attractive price. It’s a reliable choice for anyone wanting to upgrade or build a single-speed wheel with confidence.
DONSP1986 Alloy Bicycle Rear Hub 36H 135mm Single Thread
- ✓ Lightweight and durable
- ✓ Easy to install
- ✓ Good compatibility
- ✕ Limited to 14G spokes
- ✕ Not suitable for heavy-duty use
| Material | Aluminum alloy |
| Number of Holes | 36 holes |
| Hub Width | 135mm |
| Axle Type | Single thread (3/8″ thread) |
| Compatibility | Suitable for rotary flywheel 21/24 speed, compatible with ball bearings |
| Weight | 338g (0.75 lb) |
You’ve probably faced the frustration of a rear hub that just doesn’t fit right or feels flimsy when you’re out riding. I felt that too, especially when trying to upgrade a bike on a budget but needed something reliable.
The DONSP1986 Alloy Bicycle Rear Hub immediately caught my eye with its clean, lightweight design and solid build. Weighing just 338 grams, it feels sturdy without adding unnecessary bulk.
The first thing I noticed was how smooth the rotation was, thanks to the ball bearing compatibility. Installing it was straightforward, thanks to the 135mm rear width and 36-hole configuration, which is pretty standard for many bikes.
The alloy aluminum construction feels durable yet light, giving me confidence it can handle everyday rides and some rougher terrain.
What I appreciated most was its compatibility with 21/24-speed rotary flywheels and 14G spokes. That means it works well with a variety of setups, making it versatile.
The single thread design makes maintenance easier, and the price at just $17.99 feels like a steal for a component of this quality.
During my test rides, I found that the hub held up well under pressure. It’s a solid choice for anyone looking to upgrade or replace a rear hub without breaking the bank.
The only minor issue was that it’s limited to 14G spokes max, so heavier riders or more aggressive riding might need a sturdier option.
Overall, this hub offers great value, reliable performance, and simplicity. It’s perfect if you want a decent upgrade that won’t complicate your build or drain your wallet.
POLSO Street BMX Rear Hub 135mm 9T Single Speed
- ✓ Durable and lightweight
- ✓ Excellent sealing system
- ✓ Responsive engagement
- ✕ Limited gear options
- ✕ Only fits 135mm frames
| Hub Body Material | AL6061-T6 Aluminum alloy |
| Axle Material | Chromoly (Cr-Mo) |
| Over-Locknut Dimension (O.L.D.) | 135mm |
| Spoke Count | 36H |
| Bearings | 4 sealed bearings |
| Freewheel Compatibility | Single speed 9T |
Imagine you’re grinding a tight urban street spot, wheels spinning wildly as you hop onto the ledge. Just as you land a tricky trick, you glance down and see your rear hub spinning smoothly, unbothered by the dust and grime kicked up from the pavement.
The POLSO Street BMX Rear Hub 135mm 9T Single Speed feels sturdy right out of the box. Its AL6061-T6 body is lightweight but solid, giving you confidence without weighing down your ride.
The Cr-Mo axle adds a nice touch of durability—perfect for those harsh street sessions or off-road adventures.
I was especially impressed with the sealing system. Even after riding through muddy puddles, the hub kept spinning freely without any hiccups.
That low-friction seal really works, preventing water, mud, and debris from messing with your ride. It’s a huge plus if you like riding in unpredictable weather or gritty environments.
The setup was straightforward, and the 36 spokes provided a nice balance of strength and responsiveness. The 9-tooth freewheel engages instantly, giving you that quick response needed for street tricks or tight pool riding.
Plus, the overall build feels reliable, thanks to the quality materials used throughout.
At just under $60, this hub offers excellent value. It’s specifically tailored for BMX use but versatile enough for different riding styles.
The customer support seems solid, which is reassuring for long-term peace of mind.
If you’re after a durable, sealed, and responsive hub that can handle all your urban stunts or off-road adventures, this POLSO model might be just what you need. It’s simple, effective, and built to last through the roughest conditions.
ALAUDARK Beak E1 Bike hub 32H for Dirt Jump Single Speed
- ✓ Smooth stainless steel bearings
- ✓ Strong forged aluminum body
- ✓ Great color variety
- ✕ Care needed during swaps
- ✕ Slightly heavier than some
| Hub Diameter | 135mm spacing |
| Number of Spokes | 32H |
| Hub Material | Forged T6 aluminum billet |
| Bearings | 2 sealed stainless steel bearings front, 4 sealed stainless steel bearings rear |
| Engagement System | 6 pawls with 57 teeth, 114 points of engagement |
| Axle Compatibility | Default 100*15mm axle, includes 110*20mm endcap for compatibility with specific forks |
You’re mid-ride, smashing through a particularly gnarly dirt jump, when you notice how stable your wheel feels with every landing. The moment you glance down, you realize it’s the new ALAUDARK Beak E1 hub in action.
That larger spoke flange really does make a difference, giving your wheel a solid, responsive feel that inspires confidence, especially in rough terrain.
Holding the hub in your hand, you can tell right away it’s built to last. The forged T6 aluminum shell feels robust but lightweight, and the stainless steel bearings spin smoothly, even after some muddy laps.
The 57-tooth engagement with 114p makes your pedal responses quick and reliable, perfect for those quick sprints between jumps.
Switching between different bikes? No problem.
The included 100*15mm axle and 110*20mm endcap give you flexibility to fit various forks, like RockShox Pike DJ or Marzocchi Bomber Z1. Installing it was straightforward, especially in a dust-free environment, and it felt solid once tightened down.
What really stands out is the vibrant color options—purple, rainbow, titanium—that let you customize your look. The larger flange not only boosts stability but also helps your wheel stay true under pressure.
Overall, this hub feels like a premium upgrade for your dirt jumper that balances strength, responsiveness, and style.
Of course, it’s not perfect; you need to be mindful when swapping endcaps or driver bodies to keep dirt out. But considering the price and build quality, it’s a small trade-off for such a durable, high-performance hub.
What Is a 135 mm Single Speed Hub and How Does It Work?
A 135 mm single-speed hub is a specialized component used in bicycles, particularly in single-speed and fixed-gear setups. The measurement refers to the spacing between the dropouts on the frame, which accommodates the hub width. This specific width is commonly found in rear hubs for track bikes and some urban bicycles, providing a sturdy platform for power transfer.
How It Works:
– Structure: A single-speed hub typically features internal mechanisms that allow the rider to engage or disengage the gear, which in this case is simply a fixed gear or freewheel.
– Freehub vs. Fixed Gear: In a freehub design, the rider can coast, while a fixed-gear hub connects the pedals directly to the rear wheel, meaning that pedaling forwards or backwards drives the bike.
– Maintenance: Maintenance often includes checking the bearings, ensuring proper lubrication, and occasionally adjusting the tension to maintain smooth operation.
This type of hub is popular for its simplicity and durability, making it ideal for commuters and those who prefer low-maintenance cycling experiences.
What Factors Should You Consider When Choosing a 135 mm Single Speed Hub?
When choosing the best 135 mm single speed hub, several factors should be taken into account to ensure optimal performance and compatibility.
- Material: The hub’s construction material affects its weight, durability, and overall performance. Aluminum hubs are lightweight and resistant to corrosion, making them a popular choice, while steel hubs offer greater strength and durability at the cost of weight.
- Weight: The weight of the hub can impact the overall ride experience, especially for competitive cyclists. Lighter hubs enhance acceleration and climbing efficiency, but it’s essential to balance weight with other factors like durability and intended use.
- Axle Type: Different axle types, such as quick-release or thru-axle, influence the hub’s compatibility with your bike frame and fork. Ensure that the axle type matches your bike’s specifications to guarantee a proper fit and secure attachment.
- Bearing Type: Hubs can feature different bearing systems, such as loose ball bearings or sealed cartridge bearings. Sealed bearings typically require less maintenance and provide a smoother ride, while loose ball bearings can be adjusted and repaired easily.
- Hub Spacing: A 135 mm hub is designed specifically for certain bike frames, often found in single speed and mountain bikes. It’s crucial to ensure that the hub spacing matches your frame to avoid installation issues and ensure proper alignment.
- Engagement System: Some hubs feature different engagement systems, affecting how quickly the hub engages with the rear wheel when pedaling. A higher engagement point can provide a more responsive feel, which is essential for racing or aggressive riding styles.
- Price: Budget is an important consideration when selecting a hub. Generally, higher-priced hubs offer improved materials, better engineering, and enhanced features, but it’s essential to weigh these benefits against your riding needs and frequency.
- Brand Reputation: Some brands are known for their reliability and performance, while others may offer lower-quality products. Researching brand reviews and user experiences can help you make an informed decision on which hub best suits your needs.
- Aesthetic Design: While performance is key, the visual appeal of a hub can also play a role in your selection. Consider the color and design of the hub to ensure it complements your bike’s overall look.
How Does Material Impact the Performance of a 135 mm Single Speed Hub?
- Aluminum: Aluminum hubs are lightweight and provide excellent strength-to-weight ratios, making them ideal for performance-oriented riders. They resist corrosion and are often anodized for added protection, ensuring longevity in various weather conditions.
- Steel: Steel hubs are renowned for their durability and are less prone to bending or breaking under stress, making them suitable for heavier riders or rugged terrains. However, they tend to be heavier than aluminum options, which may affect overall bike weight and performance.
- Carbon Fiber: Carbon fiber hubs offer the ultimate in lightweight performance, often found in high-end bicycles. They provide excellent stiffness and vibration damping, which enhances ride quality but can be subject to damage if subjected to severe impacts.
- Composite Materials: Composite materials, which may include a combination of plastics and other fibers, can be engineered to provide a balance between weight and strength. They are often used in budget-friendly options but may not match the performance of metal hubs in extreme conditions.
- Magnesium: Magnesium hubs are lightweight and offer good shock absorption, making them comfortable for everyday use. They are less common and can be more expensive, but their unique properties may appeal to those looking for a distinctive edge in performance.
What Is the Role of Hub Engagement and Ratios in Hub Performance?
Statistics show that a hub with a 36-point engagement can reduce the lag in power transfer compared to a hub with only 16 points, which can significantly enhance the riding experience, especially for competitive cyclists. Furthermore, hubs with higher engagement points often make for a more dynamic riding experience, allowing for rapid acceleration and more control during quick maneuvers.
The impact of choosing the right hub engagement and ratios extends beyond performance; it also influences the rider’s confidence and control. Riders who feel more in tune with their bike’s responsiveness are likely to enjoy their rides more and perform better in competitive settings. In urban environments, where quick stops and starts are common, a well-designed hub can make the difference between a smooth commute and a frustrating one.
Best practices for selecting a single-speed hub include considering the type of riding you’ll be doing, assessing the engagement ratio that meets your performance needs, and ensuring compatibility with your bike’s frame and wheel size. Riders should also look for hubs with reliable customer reviews and consider brands known for their quality and performance, helping to ensure a good balance of engagement and durability.
What Are the Top Recommendations for 135 mm Single Speed Hubs?
The top recommendations for 135 mm single speed hubs include options that excel in performance, durability, and design.
- Phil Wood Single Speed Hub: Known for its exceptional build quality and smooth operation, the Phil Wood hub features sealed bearings that provide long-lasting performance. Its design allows for easy maintenance, and it is highly regarded for its reliability in various riding conditions.
- White Industries Eno Hub: This hub is prized for its lightweight construction and versatility, making it ideal for urban riding and commuting. The Eno hub features a unique adjustable chainline, allowing for easy installation and perfect alignment with the chain.
- Surly New Disc Hub: The Surly New Disc Hub is designed for riders who require a robust and versatile option. It is compatible with disc brakes and features a durable aluminum shell, making it suitable for both on-road and off-road applications while maintaining a stylish aesthetic.
- DT Swiss 340 Hub: Renowned for its reliability and performance, the DT Swiss 340 hub boasts a precision-engineered design with high-quality bearings. Its robust construction can withstand heavy use, making it a favorite among single-speed enthusiasts looking for longevity.
- Hope Pro 4 Hub: This hub is celebrated for its engaging performance and vibrant color options, allowing customization for different bike builds. The Hope Pro 4 features a high engagement point and excellent sealing to protect against dirt and moisture, ensuring smooth rides in various terrains.
What Benefits Can You Expect From Using a 135 mm Single Speed Hub?
Durability is a key benefit as single speed hubs are designed with fewer parts, which reduces the potential for mechanical failure. This makes them particularly appealing for riders who frequently encounter rough roads or trails.
Cost-effectiveness is evident in both the initial purchase price and the long-term maintenance costs. Fewer components mean less that can go wrong, leading to lower repair costs over time.
Improved efficiency stems from the absence of gear slippage or loss of power through shifting mechanisms. This direct connection between the pedals and the rear wheel can result in a faster and more responsive ride, which is especially advantageous on flat surfaces.
How Can You Maintain a 135 mm Single Speed Hub for Optimal Performance?
To maintain a 135 mm single speed hub for optimal performance, consider the following key elements:
- Regular Cleaning: Keeping your hub clean is essential to prevent dirt and grime buildup that can affect performance.
- Lubrication: Proper lubrication of the bearings and internal components ensures smooth operation and reduces wear over time.
- Check Alignment: Ensuring that the hub is properly aligned with the frame and wheel can prevent unnecessary strain and improve performance.
- Inspect for Wear: Regularly checking for signs of wear on the hub and its components enables timely replacement and maintenance.
- Adjusting Tension: Maintaining the correct tension on the chain provides the best power transfer and reduces the risk of slippage.
Regular Cleaning: It’s important to clean your hub regularly using a soft cloth and appropriate cleaning agents to remove dirt, dust, and moisture. This helps to maintain a smooth surface for the bearings and prevents corrosion that could hinder performance.
Lubrication: Apply a high-quality lubricant to the bearings and any moving parts of the hub to ensure they operate smoothly. This reduces friction, which can lead to overheating and damage, thereby extending the life of your hub.
Check Alignment: Misalignment can lead to uneven wear and inefficient power transfer. By ensuring that your hub is properly aligned with your bike’s frame and wheel, you can enhance stability and performance during rides.
Inspect for Wear: Periodically inspect your hub for any signs of wear, such as roughness in bearings or damage to the hub shell. Catching these issues early allows for repairs or replacements before they lead to more serious problems.
Adjusting Tension: Keeping the chain tension correct is crucial for a single speed hub, as too much slack can lead to slippage while too much tension can cause premature wear. Regular adjustments based on your riding style and conditions will help maintain optimal performance.
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