The KTM 990 adventure came to be in 2006 as the successor to KTM's 950 adventure and stayed in production until 2013. The 990 adventure has a DOHC 999cc 75* V-twin motor with 11.5:1 compression ratio mated to a 6 speed transmission. 105hp and 74lb-ft of torque. The dry weight is 461 lbs. and has a 34 inch seat height with a 19.5 L (5.2 gal) fuel capacity.
| Chain Size: | Front Sprocket: | Rear Sprocket: | Front Tire: | Rear Tire: | Spark Plug: |
| 525-118 | 17T | 42T | 90/90/21 | 150/70-18 | DCPR8E (Pre-'09) |
| 525-118 | 17T | 42T | 90/90/21 | 150/70-18 | LKAR8BI9 ('09-'13) |