SAVE AN AMAZING $1,538.00. ONLY ONE LEFT - The KTM'S 85 SX is the ultimate racing bike for professionals aged between 11-15 years; seat height from 900 mm. The frame, together with the 43 mm WP upside-down fork and the fully adjustable PDS System makes easy work of all those difficult jumps. A new cylinder and the centrifugally driven exhaust system guarantees juicy torque and even more top performance. Put your trust in it. You’ll never want to get off!