- 1996 to 1999, DUKE I 620 (Black Engine LC4 - 609cc)
Bike had good stuff, WP suspension, Magura hardware, and Brembo brakes. Believe it or not -- several people had monster 70HP race versions.... they milled the head to get 11:1 compression, ported & polished, dropped in custom ground cams, and installed larger pistons. A few of these we built up to compete with Honda F3's. Standard carb was either the Mikuni BST-40 or the Edlebrock Quicksilver during later years. Mine came with an FCR41 installed from the previous owner. The Black LC4 motors were known for having crankshaft bearing problems. Several days I can think of I was left strandend on the side of the road ---- leaky oil connections, clutch cables braking (went through 4 of them in 2 years).....squeaky rear brakes.
- 2000-2002, KTM Duke II 640 (Black Engine LC4 - 625cc) w/ dual exhaust, BBS wheels, 11L tank & seat combo, Mikuni BST-40 carb, and WP Street oriented suspension. (they had less suspension travel than the 640 LC4 Supermoto's)
- 2003 to 2006, KTM Duke II 640 (Silver Engine LC4 - 625cc, US and Euro). The bike came out with the dual exhaust design, had the Mikuni BST-40 carb, Marchesini wheels, 11L tank & seat combo, Brembo brakes, WP street oriented suspension, and steel braided lines as standard equipment. Many parts from the Duke II can be interchanged with the 625 SMC.
źródło: supermotojunkie.com
Pierwszy silnik DUKA miał pojemność 609ccm, od 2000-2007r - 625ccm, a od 2008- do teraz 654ccm
640 to poprostu oznaczenie KTMowskie ;)
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