The KTM 640 Adventure is a dual-sport motorcycle made by
KTM from
1998 until 2007.
The bike featured a single cylinder engine, 21" front and 18" rear wheels and
a large fuel tank as standard. It experienced a number of minor changes over its
lifespan.
In 1996 KTM introduced the 620 Adventure with a 609 cc engine. The bike
received a new 625 cc engine for the 1998 model and was renamed the 640
Adventure-R.
For model year 2004 it experienced noticeable changes with a low front
fender, twin front brake discs and the primary color changing from silver to
orange.
Production ceased at the end of the 2007 after no further
displacement changes.
Any corrections or more information on these motorcycles will be kindly appreciated.