Shimano Claris RD-R2000 8 Speed Rear Mech Derailleur SS/GS Short/Medium Cage RD-2400

Option:
1, Short cage
2, Medium cage
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Model: RD-R2000-SS
Level: Claris 
Speed: 8 Speed
Mount: Direct mount
Cage: Short Cage
Compatible chain: HG/UG
Total capacity: 37T
Max sprocket: 32T
Min sprocket: 11T
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Model: RD-R2000-GS
Level: Claris 
Speed: 8 Speed
Mount: Direct mount
Cage: Medium Cage
Compatible chain: HG/UG
Total capacity: 43T
Max sprocket: 34T
Min sprocket: 11T
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With light action and smooth gear transitions, the SHIMANO CLARIS derailleur is compatible with 8-speed road drivetrains.