For 11- to 15-year-olds, the KTM 85 SX models offer a range in tire sizes (and consequently seat heights) to suit the formidable growing stage of the tween and teenage years. This motocrosser is specified for young riders who have more experience and are looking to race competitively in junior classes. The 17/14 wheel size is perfect for those looking to transition from the 65cc class while the 19/16 model adds a super-mini step before moving onto full-size machines. A chrome-moly steel frame (much like those seen in KTM’s larger dirt bikes) houses its 85cc single-cylinder two-stroke engine and fully adjustable WP Xact suspension assists in tackling the technical tracks that the aspiring racers will come across.
The 85 SX won Dirt Rider’s 2016 85cc MX Shootout for its smooth, broad, controllable power with great over-rev and overall didn’t have any flaws. DR did note that this is a bike geared for top-level racers, so trailbikes would be recommended for new young riders.
Multiple manufacturers are taking into account the younger riders, so competition for the 85 SX is pretty fierce: Husqvarna TC 85 19/16 and 17/14, Kawasaki KX85, TM MX 85, Suzuki RM85, and Yamaha YZ85.
No major updates were announced for 2020. The two variants (19/16 and 17/14) represent the two different wheel sizes available.