Shimano Altus M310 MTB Bike 3×8 Speed Derailleur Set FD-M310 RD-M310

Option:
1, Front derailleur: Front derailleur (FD-M310)
2, Rear derailleur: Rear derailleur (RD-M310)
3, Full set(2PCS): Front derailleur (FD-M310) + Rear derailleur (RD-M310)
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Item: Front derailleur
Model: FD-M310 
Level: Altus
Speed: 3×7/8 Speed
Compatible chain: HG 8/7/6-speed
Clamp Band size: 34.9mm
(Pls leave message if you need 31.8mm adapter)
Action: Top Swing
Cable route type: Dual-Pull
Top gear teeth: 48T
Total capacity: 20T
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Item: Rear derailleur
Model: RD-M310
Level: Altus
Color: Black
Speed: 7/8 Speed
Mount: Direct Mount
Compatible chain: HG 8/7/6-speed
Total capacity: 43T
Max sprocket: 34T
Min sprocket: 11T
Smart rear derailleur has a Wide Link design for increased rigidity and precise shifting