Which statement about the 11/34 cassette is true?

• A. The smaller cog has 11 teeth and the larger cog has 34 teeth.
• B. The cassette is a single gear with 11 or 34 teeth variable
• C. 11/34 refers to chain width
• D. 11/34 is about wheel diameter

Answer: (A)

The numbers in 11/34 describe the rear gear range in terms of teeth. Specifically, the smallest sprocket has 11 teeth and the largest sprocket has 34 teeth. This notation tells you how wide the gearing range is for the rear cassette, which affects climbing ease and top-end speed. A cassette is a collection of gears on the rear hub, not a single gear, and these numbers do not indicate chain width or wheel diameter.