Surly 1/8" 18T Chromoly Track Cog - Durable Steel, Track-Use Only 2D1/2D2/2D3/2D4/2D5/2D6/2D7/2D8/2D9/2D10/JPA/JPA2/JPA3/JPA4//JIN/JIN2/JIN3//JNY/JNY2//JTX/JTX2/JTX3//JCA//JCO/JCO2/JCO3//JFL/JFL2/JFL3//JNC/JNC2/JNC3/ accommodating a range of terrains

accommodating a range of terrains

- Drivetrain Speeds: 10

weather-resistant cover and high-quality paper ensure this hiking guide withstands outdoor conditions

Includes a specially designed mounting bolt for secure installation

Innovative Design Features: Compact

Surly 1/8" 18T Chromoly Track Cog - Durable Steel, Track-Use Only 2D1/2D2/2D3/2D4/2D5/2D6/2D7/2D8/2D9/2D10/JPA/JPA2/JPA3/JPA4//JIN/JIN2/JIN3//JNY/JNY2//JTX/JTX2/JTX3//JCA//JCO/JCO2/JCO3//JFL/JFL2/JFL3//JNC/JNC2/JNC3/ accommodating a range of terrainsEnhance your track bike's performance with the Surly Track Cog 1 8" x 18t in sleek Silver. Crafted for serious cyclists and track enthusiasts, this high quality sprocket offers precision, durability, and a clean aesthetic for competitive racing or serious training rides. Designed specifically for track hubs, this cog ensures seamless, reliable engagement for smooth power transfer. Materials & Construction: Built from premium 415 hardened chromoly