Compatible with Shimano 12s Road.
- Opaque Chromed steel construction
- Ratio: 14-30/16-30
- Includes lock ring
- Allows reduced roll out for junior racing
- Middle sprockets material: Steel matt chromed-plated
- Lock ring material: AL 7075 T6 / Black anodisation
- First position sprocket material: Steel matt chromed-plated
- Last position sprocket material: AL 7075 T6 / HT "Hard Treatment"
- Weight (g): 310 (+/-3%) (11-30T)