The pro Senior has 12" front wheel and 10" rear wheel and the Pro Junior has 10" front wheel and 10" rear.
250 cc
The KTM 50 Pro, Senior, and Junior models are designed for different age groups and skill levels in youth motocross. The KTM 50 Pro typically features a more powerful engine and advanced suspension components, making it suitable for more experienced riders. In contrast, the Junior model is tailored for beginners with a milder engine and simpler features, while the Senior version often serves as a middle ground, offering enhancements for slightly more skilled young riders. Each model aims to provide appropriate performance and handling characteristics for its target audience.
The KTM 50 SX Junior is 23 inches, the 50 SX Pro Senior is 25.6 inches.
gas oil ratio for 1994 ktm 50 junior
about £1400
The SX is supercross and the XC is a cross country bike. The XC has softer suspension and a 6 speed wide ratio dear box.
KTM recommends Motorex ATF Super (Dexron II Gear Oil).
the engine power and the seat height
KTM recommends .15L-.20 L of Motorex ATF Super.
transmission fluid
415 DID Gold is the best.