Surley Silver TrackCog – /x T Chainring for BMXBike

Surly Track Cogs – Precision Gearing for Fixed-Gear & Single-Speed Riders

Engineered for durability and performance, Surly’s hardened 415 chromoly steel track cogs deliver reliable power transfer for fixed-gear bikes and single-speed setups. Designed with BMX-compatible threading (1.375″ x 24 TPI), these cogs fit most single-speed rear hubs—though they’re optimized for track use to ensure maximum longevity and smooth engagement.

Key Features:
– Ultra-Durable Construction: Made from hardened 415 chromoly steel for wear resistance under high-pressure pedaling.
– Versatile Compatibility: Threads match standard BMX freewheel hubs (1.375″ x 24 TPI), ideal for fixed-gear conversions or single-speed builds.
– Track-Ready Design: Best suited for track hubs to maintain optimal chain alignment and reduce wear.
– 16-Tooth Precision: Balanced gear ratio for urban commuting or velodrome racing.

Why Choose Surly?
Unlike generic cogs, Surly’s hardened steel construction resists deformation under load, making it a favorite among fixed-gear enthusiasts and bike messengers who demand reliability. Note: Color/finish may vary slightly from product images.

Ideal For:
– Fixed-gear riders prioritizing durability
– Single-speed commuters needing a low-maintenance cog
– DIY bike builders seeking BMX-thread compatibility

Upgrade your drivetrain with a cog built to last—engineered for the rigors of the street and track.

(For optimal performance, pair with a quality track hub and chain.)