2006 KTM 640 Adventure

. The follow-on 1994 KTM 620 Duke and the 1997 KTM 620 EGS/Adventure, both 620 models, were actually 609 cm3.

KTM introduced the 620 EGS/Adventure. Based on the 620 RXC, it was equipped with a carbureted, 609 cm3 single cylinder four-stroke motor, a large fuel tank and 21"/18" wire spoked wheels.

And was renamed the 640 Adventure-R. Over its life the bike received multiple changes and upgrades to the bodywork, breaks and color schemes.

). The 690 is considered superior in performance and features to the other bikes in the class except for its siblings the Husqvarna 701 Enduro and GasGas ES 700.

The KTM 640 Adventure R was replaced by the KTM 690 Enduro. Also The Duke, SMC and Enduro R models were designated 690 even though the actual displacement of the LC4 motor was 654 cm3. In the 2011–2012 timeframe all 690s were increased to 690 cm3. To the present day. It was introduced As a direct replacement for the 625 cm3 640 Adventure R. The 690 Enduro R, introduced To the present day, as well as badge-engineered variants sold with Husqvarna and Gas Gas branding.

Was initially marketed as a more offroad-oriented version of the adventure-touring-oriented 690 Enduro. The 690 Enduro nomenclature was dropped

; the 690 Enduro R remains in serial production as of the 2027 model year. The 690 Enduro R occupies a niche market.