Speed difference: Shimano EF60 24 speed
Front fork: SR SF 10-XCT-MLO shoulder lock front fork.
Front and rear clips: AVID BB5 disc (mechanical wire disc)
Chain: shimano CN-HG40
Rack crank: SRAM X-FLOW42-32-22T
Front and rear transmission: Shimano M3 10 Shimano M360 (ACERA)
Barrel flywheel: Shimano HG30-8 1 1-30t.
Shift control lever: Shimano EF60
Tyre: CST 26* 1.95
Rim: Wimbledon Tour 2000
Front and rear wheels: Jiuyu aluminum alloy front and rear disc brake wheels.
The price of Duke Merida 600 is generally in 2000-2005, but it's not clear whether it's better.