What type of transmission is the 13-year-old Merida Duke 600?

1. The transmission used in the 13-model Merida Duke 600: SHIMANO ACERA FD-M390.

2. Detailed configuration of 13 models of Merida Duke 600

Frame: MERIDA patented TFS

Size: 26 X 15/17/19

Shifting level: SHIMANO 24-speed

Front fork: Triple XCM lockable

Brake: AVID BB5 disc brake

Flywheel: SHIMANO HG20-9 9-speed flywheel

Front transmission: SHIMANO ACERA FD-M390

Rear transmission: SHIMANOACERA RD-M390

Throttle shifter: SHIMANO EF65-9 27S

Chain crank: Santuo XCM aluminum alloy chainring

Chain: KMC HG40 anti-rust chain

Bar: MERIDA aluminum alloy straight bar

Vice bar: ALLOY SAND-BLACK

Stem: ALLOY SAND-BLACK

Seat cushion: Merida hollow

Headset: VP-A42E

Hub: FORMULA quick-release aluminum alloy disc brake hub

Rim: MERIDA double-layer aluminum alloy disc brake rim

Tire: CST MAVERICK 26X1.90 premium tire

Seat post: 30.8D ALLOY SAND-BLACK

Net weight of the vehicle: 15K±250g