Sunrace Sprocket (21 teeth | 1/2 "x1/8" | cranked)

Socket sprocket by SunRace

Bicycle sprocket 21 teeth

• 1/2 "x 1/8"
• cranked
• chrome-plated
• fits 3-, 4-, 5-, 7- and 8-speed hub gears
• coaster hubs and rigid hubs
• SRAM, Shimano, Sturmey Archer
• robust and stable version for heavy, classic bikes
• in conjunction with wide 1/2" x 1/8" coaster and singlespeed chains