A strong single speed conversion kit delivers a secure cog, adjustable chainline, and dependable chain retention for riders simplifying a Shimano HG, SRAM HG, or XD/XDR-equipped bike. The right choice depends less on a universal ranking than on your freehub standard, preferred gear size, and whether your frame needs a chain tensioner. The ten options here range from compact cog-and-spacer kits to bundles that add tensioners, with 13T through 22T sizes represented.
Several use aluminum for low weight, while others add stainless steel or CrMo components for a different durability profile. Use the compatibility details first, then compare spacer capacity, tooth design, and included hardware to avoid buying a kit that cannot match your wheel or chainline.
The best single speed conversion kit is the one that matches your freehub and provides the chainline control your frame needs. Bibike suits Shimano or SRAM 8- to 11-speed HG bodies and includes multiple spacers, while Reverse offers a 13T CrMo cog with seven spacers. For XD/XDR hubs, Wheels Manufacturing SOLO-XD kits are the appropriate category.
If your frame lacks horizontal dropouts, consider a bundle with a chain tensioner, such as the CyclingDeal or PeakRider options.
Single Speed Conversion Kits: A Comparison
How We Compared These Products
We compared dimensions, capacity, materials, compatibility, included components, and care requirements across many Amazon listings. These details matter because the product must fit the available space, intended use, setup requirements, and maintenance routine. After examining the wider field, we selected 10 products from Bibike, PeakRider, CyclingDeal, CooMeng, BNYTXV, reverse, and Wheels Manufacturing.
The shortlist includes products such as Bibike Single Speed Conversion Kit 13T/14T/15T/16T/17T/18T/20T/22T Single Speed Cassette, PeakRider 16T Single Speed Conversion Kit & Chain Tensioner Bundle – Complete DIY Upgrade, and Cyclingdeal Conversion Kit Fixie Bike Single Speed Aluminum Chain Tensioner with Adaptor. Every recommendation is tied to information stated for that specific product; unclear or missing features were treated as unknown rather than filled with assumptions.
Detailed Reviews: Best Single Speed Conversion Kit
1. Bibike Single Speed Conversion Kit 13T/14T/15T/16T/17T/18T/20T/22T Single Speed Cassette & Spacers
Best for: Versatile HG Hub Conversion.
This Bibike single speed conversion kit offers a wide range of cassette teeth options from 13T to 22T, enabling you to fine-tune your gear ratio. It's designed for compatibility with Shimano or Sram 8 to 11 speed HG cassette bodies on both mountain and road bikes.
Constructed with a high-resistant stainless steel cassette and 6061 aluminum alloy spacers and lock ring, this kit ensures durability. The package includes a 16T cassette along with various spacers (10mm, 5mm, 3.7mm, 2mm) and a lock ring, allowing for precise chainline adjustment. Its 75.3g total weight contributes to a lighter build.
Product Details
| Brand | Bibike |
|---|---|
| Case Material Type | Alloy Steel |
| Color | black 16t |
| Manufacturer | Bibike |
| Part Number | cassettes21-bk16 |
| Material | Alloy Steel, Aluminum |
| Model Number | cassettes21-bk16 |
Pros
- Wide range of cassette teeth options (13T-22T)
- Compatible with Shimano/Sram 8-11 speed HG bodies
- Durable stainless steel cassette and aluminum alloy components
- Includes multiple spacers for fine-tuning
Cons
- Chain compatibility is limited to 1/2" x 3/32" to 1/2" x 11/128" widths.
Ideal for riders seeking a customizable single speed setup on their existing HG freehub, this kit provides the necessary components for a precise chainline adjustment on road or mountain bikes.
2. 16T Single Speed Conversion Kit & Chain Tensioner Bundle – Complete DIY Upgrade Set for Shimano HG Hubs, CNC 7075 Aluminum Cog with Precision Spacers & Adjustable Tensioner
Best for: Urban Performance Upgrade.
The PeakRider 16T single speed conversion kit, bundled with a chain tensioner, is engineered for quick acceleration and responsive urban performance. Its CNC-machined 7075 aluminum cog features a reinforced 9mm base for even force distribution.
This bundle includes a 16T silver single-speed cog and a matching chain tensioner, ideal for riders preferring a faster cadence. The durable silver anodized coating maintains its appearance and structural integrity. The 66g lightweight design, crafted from solid 7075 aluminum, ensures strength and reduces rotational mass for a smoother ride.
Product Details
| Brand | PeakRider |
|---|---|
| Style | Pro Single Speed Upgrade Kit |
Pros
- Includes chain tensioner for a complete setup
- CNC-machined 7075 aluminum for durability
- Reinforced 9mm base for force distribution
- Lightweight design at 66g
Cons
- Specific 16T cog may not suit all gearing preferences.
This kit is perfect for urban cyclists aiming for a responsive, single-speed setup with enhanced durability and a focus on acceleration, provided the 16T cog meets their desired gearing.
3. Cyclingdeal Conversion Kit Fixie Bike Single Speed Aluminum Chain Tensioner with Adaptor for Road Bike and MTB
Best for: Gearless Riding Solution.
The CyclingDeal conversion kit allows you to ride a single speed bike without gears and shifters, featuring an aluminum chain tensioner with an adaptor. This setup is designed for road bikes and MTBs, simplifying your drivetrain.
This 16-tooth conversion kit is compatible with Shimano and Sram hubs, enabling a gearless riding experience. The alloy tensioner is designed to ensure smooth riding and effectively eliminate chain dropping, providing a cleaner drivetrain. It allows for the removal of shifters and gear mechanisms for a streamlined bike.
Product Details
| Brand | CyclingDeal |
|---|---|
| Color | black |
| Included Components | PRODCUT |
| Item Weight | 4.96 ounces |
| Manufacturer | CyclingDeal |
| Part Number | FK-03 |
| Material | Aluminum |
Additional Product Information
| Model Number | FK-03 |
|---|---|
| Warranty Description | 2 Year Manufacturer |
Pros
- Enables gearless riding without shifters
- Includes an alloy chain tensioner
- Compatible with Shimano and Sram hubs
- Reduces chain dropping
Cons
- Does not convert a hub into a true fixie.
This kit is suitable for cyclists wanting to simplify their bike to a single speed setup, offering a functional chain tensioner but not a fixed-gear conversion.
4. Single Speed Conversion Kit for Shimano HG Freehub
Best for: Lightweight, Anti-Drop Design.
The PeakRider single speed conversion kit for Shimano HG freehubs features an 18T cog with a unibody design that reduces weight by 40% while maintaining strength. Its positive-negative tooth design actively prevents chain drops for a smoother ride.
This kit utilizes a precision-engraved construction for a lighter, stronger component. The positive and negative gear design ensures perfect chain engagement, minimizing slack and vibration for a more efficient and quieter ride. Included spacers (12mm, 5mm, 7mm) and a lock ring allow for precise chainline setup.
Product Details
| Brand | PeakRider |
|---|---|
| Color | Black |
| Included Components | 12mm Spacer, 5mm Spacer, 7mm Spacer, Lock Ring, Single Speed Cassette |
| Item Package Dimensions L x W x H | 0.1 x 0.1 x 0.1 inches |
| Manufacturer | PeakRider |
| Material | Aluminum |
| Model | ASSC |
Additional Product Information
| Package Weight | 0.1 kg |
|---|---|
| Size | 18T |
| Warranty Description | Limited warranty for 12 months |
Pros
- 40% weight reduction through unibody design
- Positive-negative tooth design prevents chain drops
- Precision-engraved for smooth engagement
- Includes multiple spacers for adjustment
Cons
- Only available in an 18T cog size.
This is a great option for riders with Shimano HG hubs looking for a lightweight, reliable single speed conversion that prioritizes chain security and a smooth riding experience.
5. 15T/16T/18T Single Speed Cogs Conversion Kit for Multi-Speed Bike to Dirt Jump/BMX, Aluminum Single Speed Cassette with Spacer and Locking Ring
Best for: Durable Dirt Jump/BMX Cog.
The CooMeng single speed conversion kit, available in 15T, 16T, or 18T, is designed for converting multi-speed bikes to dirt jump or BMX use. It features a 9mm thick base for stress distribution and extra-tall teeth for reliable chain retention.
Constructed from one-piece 7075 high-quality aluminum alloy, this cog offers superior durability compared to split designs. Its unique tooth shape, narrow-wide profile, and perfect roundness contribute to longer lifespan. The 9mm base evenly distributes stress, preventing freehub damage under heavy loads, while the tall teeth ensure the chain stays put.
Product Details
| Brand | CooMeng |
|---|---|
| Color | Black |
| Included Components | 12mm Spacer, 2mm Spacer, 7mm Spacer, Lock Ring, Single Speed Cassette |
| Item Package Dimensions L x W x H | 4.69 x 2.87 x 2.13 inches |
| Item Weight | 0.1 kg |
| Manufacturer | COOMENG |
| Material | Aluminum, Nylon, Steel |
Additional Product Information
| Model | SCBLACK |
|---|---|
| Package Weight | 0.09 kg |
| Size | Single Speed 16T |
| Warranty Description | 12 Mounth |
Pros
- One-piece 7075 aluminum alloy construction
- 9mm thick base prevents freehub damage
- Extra-tall teeth for reliable chain retention
- Available in 15T, 16T, and 18T options
Cons
- Material composition includes Nylon and Steel in addition to Aluminum.
This kit is ideal for aggressive riders, particularly those in dirt jump or BMX disciplines, seeking a robust and durable single speed cog that can withstand high stresses and maintain chain security.
6. Bike Chain Tensioner Single Speed Chain Adjuster Converter for MTB, Road Bike
Best for: Multi-Speed to Single Speed.
This BNYTXV bike chain tensioner is an aluminum alloy converter designed to change multi-speed bikes into single speed bikes. Its lightweight construction ensures it doesn't add extra burden to the bicycle.
Made from aluminum alloy, this chain adjuster is lightweight and practical for various cycling applications. It is designed to ensure perfect chain tension, allowing for easier pedaling, and is compatible with 11T/13T derailleurs. The universal fit accommodates various gear sizes and effectively prevents the chain from skidding off the crank.
Product Details
| Brand | BNYTXV |
|---|---|
| Case Material Type | Aluminum |
| Color | As Picture Show |
| Included Components | not null |
| Item Weight | 0.01 kg |
| Manufacturer | ZSooner |
| Part Number | 15919275047518 |
Additional Product Information
| Material | Aluminum |
|---|---|
| Model Number | 15919275047518 |
Pros
- Lightweight aluminum alloy construction
- Converts multi-speed to single speed
- Ensures perfect chain tension
- Universal fit for various gear sizes
Cons
- Specific compatibility with 11T/13T derailleurs mentioned.
This tensioner is a practical solution for riders looking to convert their existing multi-speed bike to a single speed setup, suitable for MTB, road racing, and fixie bikes.
7. Single Speed Conversion Kit by Reverse Components
Best for: HG Freehub Conversion.
The Reverse Components single speed kit allows you to convert any normal HG freehub wheel into a single speed drive. This kit features a 13T CrMo cog with a 7mm thick Hyperglide-spline for robust performance.
Included in this kit are a 13t CrMo cog, an alloy lockring, and seven aluminum spacers (two 10mm, one 5mm, four 3mm) for fine-tuning the chain line. The CrMo cog offers durability, while the alloy spacers provide the flexibility needed to achieve optimal chain alignment on your HG freehub.
Product Details
| Brand | reverse |
|---|---|
| Color | Green |
| Item Dimensions LxWxH | 7.87 x 5.67 x 0.75 inches |
| Item Package Dimensions L x W x H | 8.03 x 5.83 x 0.71 inches |
| Item Weight | 1 g |
| Manufacturer | Reverse |
| Material | Multiple |
Additional Product Information
| Model | Reverse Single Speed Kit, 13T, Green |
|---|---|
| Model Year | 2017 |
| Package Weight | 0.08 kg |
| Style | Does Not Apply |
Pros
- Converts standard HG freehubs to single speed
- Durable CrMo cog
- Includes multiple alloy spacers for adjustment
- Comes with alloy lockring
Cons
- Only includes a 13T cog.
This kit is a straightforward option for cyclists with HG freehub wheels who want to convert to a single speed setup, offering the essential components for chainline adjustment.
8. CyclingDeal Single Speed 13 Teeth Conversion Kit and Chain Tensioner – Bundle
Best for: Bundle for Simplicity.
The CyclingDeal single speed 13-tooth conversion kit is bundled with a chain tensioner, offering a straightforward solution for simplifying your bike's drivetrain. This package aims to provide the necessary components for a single speed setup.
This bundle combines a 13-tooth single speed cog with a chain tensioner, simplifying the conversion process. The inclusion of a tensioner helps maintain proper chain slack and prevents chain drop, contributing to a smoother and more reliable riding experience without gears and shifters.
Product Details
| Brand | CyclingDeal |
|---|---|
| Style | 13 Teeth Kit + Chain Tensioner |
Pros
- Includes both cog and chain tensioner
- Features a 13-tooth cog
- Simplifies drivetrain conversion
- Aids in maintaining chain tension
Cons
- Specific hub compatibility is not detailed in the title.
This bundle is suitable for riders seeking an easy-to-install single speed conversion that includes a chain tensioner, provided the 13T cog is the desired gearing for their bike.
9. Wheels Manufacturing SOLO-XD 18T Single Speed Conversion Kit for XD Hubs
Best for: XD Hub Conversion.
The Wheels Manufacturing SOLO-XD 18T single speed conversion kit is specifically designed for XD hubs, featuring a lightweight and durable 7075 aluminum carrier and cogs. Its innovative narrow-wide tooth pattern enhances chain retention.
Constructed from 7075 aluminum, this kit offers both light weight and extreme durability for demanding use. The alternating narrow-wide tooth pattern on the 18-tooth cog is engineered to provide superior chain retention, significantly reducing the likelihood of chain drops and improving overall riding efficiency on various terrains.
Product Details
| Brand | Wheels Manufacturing |
|---|---|
| Color | Blue |
| Included Components | Single-Speed Conversion Kits |
| Item Dimensions LxWxH | 13.75 x 10.25 x 3.5 inches |
| Item Package Dimensions L x W x H | 13.75 x 10.25 x 3.5 inches |
| Item Weight | 8.32 ounces |
| Manufacturer | Wheels Manufacturing |
Additional Product Information
| Material | Aluminum |
|---|---|
| Model | SOLO-XD |
| Package Weight | 8.32 ounces |
| Style | Single-Speed Conversion Kits |
| Warranty Description | Limited Warranty |
Pros
- Designed for XD hubs
- Lightweight and durable 7075 aluminum
- Superior chain retention with narrow-wide teeth
- Reduces chain drops and improves efficiency
Cons
- Only compatible with XD hubs.
This kit is an excellent choice for riders with SRAM XD hubs looking to convert to a single speed setup, prioritizing durability, light weight, and reliable chain retention for aggressive riding.
10. Wheels Manufacturing Solo-XD XD/XDR Single Speed Conversion Kit – 18t, for XD/XDR Freeubs, Green
Best for: Sleek XD/XDR Setup.
The Wheels Manufacturing Solo-XD XD/XDR Single Speed Conversion Kit in Green offers a sleek, lightweight singlespeed setup for SRAM XD/XDR freehubs. It is engineered for durability and performance with an 18-tooth cog.
This kit allows for optimal chainline engineering with included adjustable spacers, ensuring precise alignment and smooth performance. Designed specifically for SRAM XD/XDR hubs, it features a clever base sleeve system for seamless installation, mimicking cassette mounting. The 18-tooth cog uses a narrow-wide alternating tooth pattern for excellent chain retention.
Product Details
| Brand | Wheels Manufacturing |
|---|---|
| Color | Green |
| Included Components | Single-Speed Conversion Kits |
| Item Dimensions LxWxH | 8 x 7 x 3.5 inches |
| Item Package Dimensions L x W x H | 8 x 7 x 3.5 inches |
| Item Weight | 8.16 ounces |
| Manufacturer | Wheels Manufacturing |
Additional Product Information
| Material | Aluminum |
|---|---|
| Model | SOLO-XD |
| Package Weight | 8.16 ounces |
| Style | Single-Speed Conversion Kits |
| Warranty Description | Limited Warranty |
Pros
- Compatible with SRAM XD/XDR hubs
- Includes adjustable spacers for precise chainline
- Easy installation with base sleeve system
- Durable 7075 aluminum construction
Cons
- Only compatible with XD/XDR hubs.
This kit is ideal for SRAM XD/XDR hub users aiming for a high-performance, visually appealing single speed conversion, offering precise chainline adjustment and reliable chain retention.
What Buyers Often Overlook
Freehub compatibility and chainline sizing
Freehub compatibility should be checked before cog size or material because these kits do not share one mounting standard. Bibike is specified for Shimano or SRAM 8- to 11-speed HG cassette bodies and supports mountain and road bikes. CyclingDeal lists compatibility with Shimano and SRAM hubs, while PeakRider’s single speed kit is specifically for Shimano HG freehubs.
The Wheels Manufacturing SOLO-XD options are a separate fit category: one is for XD hubs, and the other is for SRAM XD/XDR freehubs. Spacers then determine the cog’s lateral position.
Bibike includes 10mm, 5mm, 3.7mm, and 2mm spacers; Reverse includes two 10mm, one 5mm, and four 3mm spacers. This range helps fine-tune chainline, but it does not make an HG kit compatible with an XD/XDR freehub.
The Key Product Trade-Off
Tensioners, tooth profiles, and chain retention
A chain tensioner is most relevant when the frame cannot achieve correct chain tension through dropout adjustment alone. The CyclingDeal FK-03 uses an aluminum tensioner and is described as helping eliminate chain dropping, while BNYTXV provides a separate aluminum chain adjuster for converting multi-speed bikes. PeakRider offers a bundle pairing a cog with a matching tensioner.
Cog design also affects retention: PeakRider describes a positive-negative tooth design, CooMeng specifies extra-tall teeth and a narrow-wide profile, and the SOLO-XD kits use a narrow-wide alternating tooth pattern. These features address chain retention, but they do not replace correct chainline or tension adjustment.
Material choices vary as well: Bibike combines a stainless steel cassette with 6061 aluminum spacers and lock ring, whereas several alternatives use 7075 aluminum, and Reverse specifies a CrMo cog.
Best Single Speed Conversion Kit: Buyer's Guide
Fit, Dimensions, and Compatibility
Compare the listed dimensions with the intended counter, cabinet, appliance, storage, or installation space. Confirm model compatibility and connection requirements where they are supplied. A useful feature cannot compensate for a product that does not physically fit or work with the buyer’s existing setup.
Capacity, Output, and Operating Format
Match listed capacity, volume, output, and operating mode to the actual household or work routine. Larger figures can support heavier use, while a smaller format may be easier to place and maintain. Treat daily output, immediate storage, and container capacity as separate specifications when the listing distinguishes them.
Materials, Construction, and Care
Use the listed materials and care instructions to judge cleaning effort, storage conditions, and compatibility with the intended use. Dishwasher, freezer, food-contact, or weather-related claims are included only when supplied for that product. Check whether routine care fits the way the product will be used.
Included Components and Setup Needs
Review the included components before planning installation or first use. Hoses, adapters, lids, paddles, bowls, brushes, controls, and manuals vary by listing. Confirm power, water, assembly, or accessory requirements from the supplied product information rather than assuming that separately pictured parts are included.
Which Should You Choose?
Choose Bibike if you need broad Shimano or SRAM HG compatibility, several cog-size options, and a substantial spacer assortment. Choose Reverse when a 13T CrMo cog and seven spacers suit your setup. PeakRider’s HG kit fits riders wanting an 18T aluminum option, while its cog-and-tensioner bundle targets frames that need added tension control.
CyclingDeal’s 16T kit or 13T bundle is a practical direction when an aluminum tensioner is important. CooMeng emphasizes a 7075 aluminum cog, 9mm base, and retention-focused tooth shape.
For XD or XD/XDR hubs, select the corresponding Wheels Manufacturing SOLO-XD model rather than an HG kit. BNYTXV is a tensioner-only option, not a complete cog-and-spacer conversion kit.
Quick Buying Checklist
- Confirm the complete dimensions against the available space.
- Verify model, accessory, connection, and appliance compatibility.
- Match capacity or output to the expected amount of use.
- Compare materials and care instructions with the maintenance routine.
- Check the included components before planning setup or first use.
- Confirm listed power, water, storage, or installation requirements where applicable.
Frequently Asked Questions
What is a single speed conversion kit?
A single speed conversion kit allows you to remove the gears from a multi-speed bicycle and convert it to a single-speed setup. These kits typically include a cog, spacers, and sometimes a chain tensioner to ensure proper chain alignment and tension on a frame designed for gears.
Do I need a chain tensioner?
A chain tensioner is often recommended, especially if your bike frame’s horizontal dropouts don’t allow for sufficient chain tension adjustment. It helps maintain proper chain tension, preventing the chain from falling off and ensuring smooth operation on your converted single-speed bike.
Will this kit fit my bike's hub?
Compatibility depends on the hub type. Many kits are designed for standard Shimano HG freehub bodies. However, some specialized kits are available for other standards like XD/XDR hubs.
Always check the kit’s specifications against your bicycle’s existing hub to ensure a proper fit.
What cog size should I choose?
Cog size affects your gear ratio. Smaller cogs offer higher resistance (good for flats), while larger cogs provide less resistance (better for hills). Common sizes range from 13T to 22T.
Consider your riding terrain and desired effort level when selecting a cog size.
Can I convert any bike to single speed?
Most bikes with standard derailleur systems can be converted. However, the success and ease of conversion depend on your frame’s dropout type and whether you need a chain tensioner. Bikes with horizontal dropouts offer more flexibility for chain tension adjustment.
Final Words
Choosing the right single speed conversion kit depends on your hub type and desired setup. For broad compatibility, kits designed for Shimano HG hubs are common. If you have specific needs like XD/XDR compatibility or require a robust chain tensioner, select a kit tailored to those requirements for a successful conversion.