With stock gearing 71 mph.
For a 250 SX KTM recommends Motorex Top Speed 4T 15W50 (.7 L). For a 250 SX-F KTM recommends Motorex Power Synt 4T 10W50 (1.1 L).
The 250sx has about 47 hp and does 71 mph (stock).
90mph
KTM recommends Motorex Top Speed 4T 15W50 oil 0.7 L
60-70 mph
KTM recommends .5L of Motorex Top Speed 4T15W50.
KTM recommends Motorex Top Speed 4T 15W50.
With stock gearing 60 mph
The top speed of a KTM 125 SX is typically around 65 to 70 mph (105 to 113 km/h). This speed can vary slightly based on factors such as rider weight, terrain, and bike condition. The KTM 125 SX, being a lightweight motocross bike, is designed for agility and performance rather than outright speed.
250 SX manual calls for Motorex Top Speed 4T 15W50 ( .7 L)
1999
Yes it is. The 85 sx is slower. Top speed of 85 sx is 104km/h. Top speed of yz is 140km/h