It’s compatible with both 1/2" x 1/8" and 1/2" x 3/32" chain pitches, making it versatile for a range of single-speed bikes. Thread Size: M30 (30mm). 14/15 Tooth (Choose from drop down above). Pitch: 1/2" x 1/8" or 1/2" x 3/32" (Choose from drop down above).