Answering the buyer’s search intent directly, these 135 BCD track chainrings are ideal for BMX, fixie, and track applications. The top choices emphasize CNC machined aluminum construction, strong compatibility with single-speed setups, and durable anodized finishes. This guide highlights who should choose each option and why, with clear, comparison-friendly notes to help you pick the right chainring for your drivetrain.
Summary table of selected products:
| Product | BCD / Compatibility | Best For |
|---|---|---|
| Origin8 BMX/Singlespeed/Fixie Chainrings | 135 BCD | BMX, Fixie, Track enthusiasts seeking aluminum, anodized finish |
| DJC 144BCD Round Chainring Adapter (to 144 BCD) | 144 BCD, 47–64T | Single-speed or fixed-gear riders needing 144 BCD versatility |
| Origin8 BMX/Singlespeed/Fixie Chainrings | 135 BCD | Budget-conscious BMX/Track riders needing CNC aluminum |
| DJC 144BCD Round Chainring Adapter (to 144 BCD) | 144 BCD, 47–64T | Single-speed riders seeking broader tooth options |
| Origin8 BMX/Singlespeed/Fixie Chainrings | 135 BCD | Durable, reliable option for daily fixed-gear use |
Origin8 BMX/Singlespeed/Fixie Chainrings
Features: CNC machined 6061-T6 aluminum construction. Great for BMX, Fixie or Track applications. Anodized finish. This makes the ring durable in harsh riding conditions and suitable for single-speed systems.
Best for: Riders who want a robust, aluminum chainring for daily fixed-gear or track use. The 6061-T6 construction supports repeated acceleration and braking patterns common in urban riding.
Caution/limitation: Specific tooth counts are not listed in the data provided. Check your drivetrain for compatibility with your chosen chain length and cassette-free setup.
DJC 144BCD Round Chainring and Spider Adapter Converter
Features: 144 BCD adapter/converter for Sram direct mount 3-bolt setups. Fits Fixed Gear/Track bikes or single-speed bikes. Not suitable for 7–12 speed bikes. Works with 1/2 x 1/8 chains, with tooth options from 47 to 64.
Best for: Riders needing a 144 BCD option from a spider adapter, especially for converting or upgrading single-speed track bikes. Choose this if you require a wide range of tooth counts within 47–64T.
Limitation: Not compatible with multi-gear or 7–12 speed drivetrains. Ensure your chain and chainring spacing matches the fixed-gear setup.
Origin8 BMX/Singlespeed/Fixie Chainrings
Features: CNC machined 6061-T6 aluminum construction. Anodized finish. Ideal for BMX, Fixie or Track applications.
Best for: Riders who want consistent performance with a durable aluminum chainring and a similar construction to other Origin8 options. This is a straightforward upgrade for fixed-gear builds.
Caution/limitation: Similar to the other Origin8 options, check compatibility with your chainline and crankset to ensure correct alignment and chain tension.
Origin8 BMX/Singlespeed/Fixie Chainrings
Features: CNC machined 6061-T6 aluminum construction. Great for BMX, Fixie or Track applications. Anodized finish.
Best for: Budget-conscious riders who still want a robust aluminum chainring for single-speed applications. The anodized finish helps protect the surface during regular riding.
Caution/limitation: As with other aluminum chainrings, weight reduction and wear will vary with riding style and maintenance. Ensure precise chainline to avoid drivetrain issues.
Buying Guide
What is 135 BCD and why does it matter?
135 BCD refers to the bolt circle diameter used to mount a chainring on a crank. It’s a common standard for BMX and fixed-gear bikes. If your crankset uses 135 BCD, these chainrings will generally fit. However, some items in this list pertain to 144 BCD adapters, which enable different gearing configurations. Always confirm your crank’s BCD before purchasing.
Which material should I choose?
CNC machined 6061-T6 aluminum is the standard for mid-range track and fixie rings. It offers a balance of strength, lightness, and resistance to wear. Anodized finishes add surface protection and color durability for frequent urban riding and wet weather.
Single-speed vs. multi-gear compatibility
The products listed here are tailored to single-speed or fixed-gear setups. Some DJC adapters convert to a 144 BCD, which expands possible tooth counts and allows adaptation from different crank configurations. If you plan on running a fixed-gear or track setup without a derailleur, these options are appropriate.
Tooth count considerations
Tooth counts range across 47–64T in the DJC adapters and vary with Origin8 offerings. Higher tooth counts provide smoother cruising and longer wear life, while lower counts offer quicker acceleration. Align your choice with your riding style, terrain, and desired cadence.
Installation notes
Confirm crank compatibility with your chosen chainring’s mounting pattern. Some adapters require specific mounting configurations (e.g., 3-bolt direct mount, 1/2 x 1/8 chains). Ensure proper torque on bolts and correct chain tension for safety and performance.
Who should consider each option?
- Best for BMX riders seeking durability and a simple upgrade: Origin8 6061-T6 aluminum chainrings with anodized finish.
- Better for riders needing 144 BCD versatility through an adapter: DJC 144BCD Round Chainring Adapters with multiple tooth options.
- Choose this if you want a balance of affordability and solid aluminum construction without extra mounting complexity: Origin8 chainrings.
- Avoid this if you ride a multi-gear bike or require compatibility with derailleurs and rear cassettes; these products target single-speed configurations.
FAQ
- Q: Will these 135 BCD chainrings fit my crankset? A: They fit 135 BCD cranksets; verify your crank’s BCD before purchasing.
- Q: Are DJC adapters compatible with all track bikes? A: They work with fixed-gear/single-speed bikes using 1/2 x 1/8 chains and 144 BCD, not with 7–12 speed drivetrains.
- Q: Do these chainrings come with mounting hardware? A: The product listings show the chainrings and adapters, but mounting hardware specifics are not provided. Verify with the seller before purchase.
- Q: Is aluminum better than steel for track chainrings? A: Aluminum is lighter and provides good stiffness, but steel can offer longer wear in gritty riding conditions. The choice depends on weight goals and durability needs.
- Q: Can I use these on a road bike with a derailleur? A: These options are designed for single-speed setups; using them with a derailleur-equipped road bike is not typical and may require additional modifications.
- Q: How do I determine the correct tooth count for my riding style? A: Lower tooth counts accelerate quicker and are suited for hilly routes; higher counts enable smoother cruising at higher speeds. Match to your cadence and terrain.
Note: This article presents 5 relevant 135 BCD and 144 BCD options drawn from the provided product list. Always verify current compatibility with your specific crankset, chain, and overall drivetrain configuration before purchasing or installing any components.