Surly Cassette Cog
Best durable cog for custom 7-speed drivetrain builds.
This is the ultimate building block for riders who prefer the simplicity of a custom drivetrain over the complexity of a full cassette. You sacrifice the convenience of shifting, but you gain a bulletproof, tailored gear ratio that handles abuse better than any stock setup.
$34.99
at
Mike's Bikes
Who it's for
- Commuters and bikepackers prioritizing long-term drivetrain reliability
- Mechanics looking for simple single-speed drivetrain conversions
- Singlespeed riders seeking precise, efficient chain alignment
Who should skip it
- Budget-conscious cyclists comparing total conversion kit costs
- Weight-weenies chasing every gram of rotational savings
- Shoppers wanting an all-in-one, ready-to-install solution
Performance breakdown
Material Durability
Hardened steel construction withstands high torque and resists premature tooth wear.
Drivetrain Compatibility
Precision engineering ensures seamless integration with standard 7-speed drivetrain systems.
Installation Simplicity
Straightforward design allows for quick swaps during routine maintenance or upgrades.
Gear Ratio Versatility
Essential for fine-tuning cadence, though limited by specific tooth count availability.
Shift Precision
Clean tooth profiles promote consistent chain engagement and reliable power transfer.
Component Longevity
Built to endure harsh riding conditions without sacrificing structural integrity.
Key Specs
Material
SCM415 Chromoly steel
Finish
Heat-treated and chrome-plated
Chain Compatibility
6- to 9-speed 3/32 inch chains
Smallest Cog Teeth
13t
Largest Cog Teeth
22t
Width
4.35 mm
Model Number
FW2074
Drivetrain Component Type
Single Speed Cog
Lockring Included
No
Removable Cogs
No
Know before you buy
Still have a question?
Ask Metto anything about the Surly Cassette Cog before you decide.
