Altus RD-M370 Dura-Ace Di2 It is favored by top

It is favored by top professional and amateur players

• Zipper closes towards the front

Engineered with integrated

Safe on all parts and surfaces including carbon fibre

The build quality is good

Altus RD-M370 Dura-Ace Di2 It is favored by topSHIMANO ALTUS Rear Derailleur 9 speed The 9 speed SHIMANO ALTUS M370 rear derailleur use its MEGA 9 DRIVE TRAIN design to deliver smooth, light action shifting performance. Possible to select appropriate gear combination for stress free long riding MEGA 9 DRIVE TRAIN Smooth light action shifting performance Low profile concept with Double Servo panta technology Wide Link for durability and precise shifting Total capacity: 45T SGS Cage