Any good quality 10w40 or 15w50 (for colder climates)
1.35 L
Transmission: Motorex Top Speed 15W50
2003
about $2g/$4g
Get a KTM
The KTM sx is fast but the yfz is the best for what I do, what kind of riding do you do?
2 Wheel Tuesday - 2003 Mike Lafferty Factory KTM 1-1 was released on: USA: August 2003
40:1
KTM recommends Motorex Top Speed 4T 15W5 (0.7L)
10w30 is what ktm recommend for a 2 stroke engine
For a 2003 KTM 450 EXC, compatible plastics typically include those from other KTM models of the same era, such as the 2003 KTM 250 EXC and 400 EXC. Additionally, aftermarket companies often produce compatible plastics that fit multiple KTM models, so checking with brands like Cycra or UFO can provide suitable options. Always ensure that the specific year and model match to guarantee proper fitment.
Pro Circuit pipe for KTM 50 is between $199 and $250 depending on where you buy one.