2021 KTM 85 SX [Model Overview]

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By Simon Bertram

The 2021 KTM 85 SX: The Competitive Edge In Junior Motocross

The 2021 KTM 85 SX is the final step in Junior Motocross, and to provide the best chances at a win, KTM makes two versions of the bike for the 2021 lineup. Both are powered by the same 85cc two-stroke single, producing over 20 HP, with the only difference between the two being wheel sizes. For the shorter rider, the 85 SX 17/14 gives a 17 inch front wheel, with a 14 inch rear. The 85 SX 19/16 similarly gives the taller rider a 19 inch front wheel and a 16 inch rear.

This Austrian-made bike is equipped much more like a fully-fledged supercross bike than a motocrosser, but it will still be competitive in both categories. A full 6-speed manual transmission is tuned specifically to get the power to the dirt, and also delivers a slightly more tame powerband once into the middle revs for long distance cross country racing. WP XAct suspension is once again the suspension of choice.

KTM’s designers have also not only given the 85 SX series a 6-speed transmission but have also included a wet, multi-disc hydraulic clutch, designed by FORMULA racing. This is a race-grade product and lets the junior rider get an excellent feel for the bite point and lightning fast gear changes.

The 2021 KTM 85 SX 17/14 starts at $6,099 USD / $6,899 CAD, while the 85 SX 19/16 starts at $6,299 USD / $7,099 CAD.

On this page: we’ve curated specs, features, news, photos/videos, etc. so you can read up on the new 2021 KTM 85 SX in one place.


Model Overview

General Info

  • Price: $6,099 USD / $6,899 CAD
  • Key Features:
    • 6-speed manual transmission
    • WP XAct racing suspension included
    • Kickstarter only, no electric start

Main Specs

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