Choosing a fixed gear bicycle frame involves balancing durability, weight, and compatibility with components. This guide highlights five well-regarded framesets and explains how their features align with common fixed-gear riding needs, from city commuting to track-style performance. Each option emphasizes sturdy construction, straightforward geometry, and efficient power transfer—key traits for fixed-gear setups.
| Product | Brand | Frame Type | Size Range | Key Advantage |
|---|---|---|---|---|
| BSFHQS 700C Fixed Gear Frameset | BSFHQS | Aluminum Alloy, Fixed Gear Frameset | 49CM, 52CM, 55CM, 58CM | Lightweight aluminum with QR integration |
| AVASTA 50 Fixed Gear Urban Bike | AVASTA | Single-Speed, Steel Frame | 50 | Flip-flop hub for fixed or freewheel |
| POLSO FM007 INTRO7 52CM GT Cross | POLSO | CR-MO Track Frameset | 52CM, 55CM | Internal cable routing, refined aesthetics |
| POLSO FM007 INTRO7 55CM GT Cross | POLSO | CR-MO Track Frameset | 52CM, 55CM | Internal routing with integrated brake hanger |
| Throne TRKLRD Complete Frame | Throne | Alloy 6061 Frame | 55 (as listed) | Lightweight alloy with carbon fork integration |
BSFHQS 700C Fixed Gear Frameset
The BSFHQS fixed gear frameset combines aluminum alloy construction with a track-style geometry aimed at responsive handling. Offered in multiple sizes (49CM, 52CM, 55CM, 58CM), it is designed to accommodate 700C wheels and frames with a 28.6mm head tube and 1 1/8″ steerer. It uses a BSA BB68mm threaded bottom bracket and supports a front 100mm / rear 120mm quick-release system, making it straightforward to set up with fixed or single-speed drivetrain components. The frame weight is around 1493g, with the fork at roughly 665g, offering a balance of stiffness and lightness for street or track use.
Key considerations include tire compatibility up to 700x25C, a practical balance between weight and rigidity, and the need for compatible brakes and chainlines. The matte black finish provides a versatile aesthetic suitable for urban riding or a sportier look on the track. This frameset suits riders who want a nimble chassis with QR convenience and a mid-range weight target for fixed-gear builds.
What to know for setup
- Headset: 28.6mm, 1 1/8″ standard
- Bottom bracket: BSA 68mm threaded
- Brake compatibility: C-brake style, with QR options
- Wheel fit: 700C, up to 25C tires
AVASTA 50 Black/Green Single-Speed Fixie
The AVASTA 50 is a lightweight, single-speed urban commuter designed for versatility in a fixed-gear context. The steel frame enhances durability and ride comfort by absorbing road imperfections, while a flip-flop hub enables switching between fixed-gear and freewheel configurations. The setup ships with standard 700 x 25C tires, 40mm deep-V rims, a KMC chain, freestyle pedals, and two sets of brakes, providing ready-to-ride functionality for city streets or weekend rides. Its flat handlebar offers a straightforward, stylish riding position that appeals to both new and seasoned fixed-gear riders.
When evaluating this frame, consider wheel compatibility and the availability of proper brake compatibility for fixed-r gear setups. The symmetry of a steel frame with a flip-flop hub offers a reliable, low-maintenance option for riders seeking simplicity and a comfortable daily-use platform.
Notes for buyers
- Single-speed reliability
- Durable steel frame
- Flip-flop hub for ride choices
AVASTA 50 Black & Blue Single-Speed Fixie
This AVASTA model mirrors the core AVASTA single-speed concept with a distinct black and blue palette. It uses a high-tensile steel frame intended to endure daily riding and rough urban surfaces, paired with a fixed or freewheel configuration via a flip-flop hub. The package includes 700 x 25C tires, 40mm deep-V rims, a KMC chain, freestyle pedals, and two braking options, enabling riders to tailor the braking setup to their local regulations and preferences. The design prioritizes a straightforward, robust platform ideal for commuting or casual track sessions.
Potential buyers should assess your preferred colorway and how the frame’s geometry aligns with your height and riding posture. Fixed-gear riders often value frame stiffness and consistent chainline, both of which this model aims to provide through its steel tubing and drivetrain layout.
POLSO FM007 INTRO7 52CM GT Cross
The POLSO FM007 INTRO7 frameset emphasizes durability and refined aesthetics. Featuring CR-MO steel construction, it promises long-term performance under demanding conditions. The frame presents an elegant metallic finish with internal cable routing for a clean appearance, and an integrated brake hanger to simplify installation. Availability in 52cm and 55cm sizes makes it accessible to a range of rider heights. The track-ready geometry supports fixed-gear use while accommodating necessary components for a clean, road-ready build.
Considerations for this frame include brake compatibility, supplier timing for internal routing, and whether the frame supports the chosen crankset and chainline. The combination of strength and clean lines makes it a solid option for riders who want a track-inspired look without sacrificing practicality in daily riding.
Key attributes
- Chromoly steel construction
- Internal cable routing
- Integrated brake hanger
- GT Cross styling for city and track use
POLSO FM007 INTRO7 55CM GT Cross
The 55cm variant of the POLSO FM007 INTRO7 GT Cross continues the same design philosophy with slightly larger sizing for taller riders. The CR-MO frame offers the same durability and performance potential for fixed-gear bicycling, with the same internal cable routing and a clean integration of the brake hanger. Riders selecting this size should verify compatibility with their preferred wheelset and crankset to ensure a proper chainline and brake reach. The GT Cross designation signals versatility for both urban riding and fixed-gear track work.
As with the 52cm version, it’s important to confirm frame clearance for tires and ensure the rear spacing aligns with the chosen hub. The frame’s aesthetics and practical routing support a streamlined build that prioritizes reliability and ease of maintenance.
Throne TRKLRD Complete Alloy Frame
The Throne TRKLRD frame is built from alloy 6061 and pairs with a carbon alloy fork to deliver a lightweight and responsive chassis for fixed-gear configurations. Included features like a tapered headset and a carbon-like fork contribute to a modern aesthetic and enhanced steering precision. The model emphasizes a complete platform ready for fixed-gear or single-speed builds, with an eye toward performance on road and track sessions. The 55 size provides a balance of reach and standover height for many riders.
Key considerations for the Throne frame include compatibility with a tapered steerer setup and ensuring proper brake mounting for fixed-gear use. The combination of alloy frame and carbon fork aims to deliver a smooth ride with efficient power transfer and predictable handling, making it suitable for riders seeking a contemporary, performance-oriented frame without resorting to exotic materials.
Buying Guide: Fixed Gear Frame Essentials
Choosing the right fixed gear frame involves several dimensions beyond color and branding. Here are core considerations to guide your decision:
- Frame material and weight: Aluminum frames are lightweight and stiff, while steel frames add durability and comfort at a modest weight penalty. Consider your preferred ride feel and maintenance profile.
- Geometry and size: Track-inspired geometry emphasizes short, responsive handling. Correct sizing guarantees comfortable reach and standover height; verify that your chosen size aligns with your inseam and riding posture.
- Wheel compatibility and tire clearance: Most fixed-gear builds use 700C wheels; confirm supported tire widths (usually up to 25C) and clearance around the chainstays and fork.
- Bottom bracket and crankset compatibility: Threaded BSA or press-fit standards impact component choices. Ensure the bottom bracket shell and crankset chainline align with your drivetrain plan.
- Brake compatibility: Fixed-gear setups may require front brake only depending on local regulations. Check if the frame has integrated brake hangers and whether it supports internal routing if you want a clean look.
- Hub options: Flip-flop hubs offer fixed and freewheel riding on a single wheelset. Decide if you want this flexibility or a single fixed setup.
- Maintenance and upgrade potential: Internal routing can improve aesthetics but may complicate maintenance. Consider reel-through options for easier servicing or future upgrades.
- Compatibility with accessories: Check for bottle cage mounts, rack mounts, and derailleur hanger compatibility if you plan to convert to a multi-gear setup later.
- Intended use: City commuting, track training, or weekend rides each benefit from different frame characteristics. Align frame choice with your primary use to optimize performance and comfort.
These frames are designed to provide a solid foundation for fixed-gear builds while accommodating common components. Assess local regulations, your riding style, and the availability of compatible parts to ensure a seamless setup and a reliable ride.