Shimano Deore M590 Front Derailleurs Item Specifications: Front Derailleur Clamp 28.6mm (1-1/8"),31.8mm (1-
- 34.9mm easy access clamp design
- Multi clamp/ dual pull construction
- 50mm chainline
- Better clearance between tire and FD inner chain guard
- Hyperdrive system component
- 34.9mm easy access clamp design
- Multi clamp/ dual pull construction
- 50mm chainline
- Better clearance between tire and FD inner chain guard
- Hyperdrive system component