- Super flat profile with SHADOW mechanism
- B-tension spring for quick and easy wheel assembly and removal
- Enlarged linkage for greater strength and more precise shifting
- Mounting type: direct
- Cage length: long
- Chain compatibility: HG 9-speed
- Maximum large chainring teeth: 36
- Maximum tooth size of small chainring: 32 teeth
- Series: Shimano Altus M3000
- Model number: RD-M2000
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