Box One Single-Speed Chromoly Cogs are CNC-machined from long-wearing CNC-machined from chrome-molybdenum. It's designed to fit Shimano™ compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body.

FEATURES

• Shimano™ Compatible Driver
• 3/32" or 1/8" Chain Compatible
• Heat-Treated Chromoly
• Heavy Duty

Material: Chromoly

Other: Laser-etched logos

Weight:

• 13t: 8 grams / 0.3 ounces
• 14t: 11 grams / 0.4 ounces
• 15t: 13 grams / 0.5 ounces
• 16t: 14 grams / 0.8 ounces
• 17t: 16 grams / 0.6 ounces
• 18t: 18 grams / 0.65 ounces