Navigating KTM's expansive lineup of models and their associated letters can be a daunting task, even for experienced riders. In this guide, we’ll provide you with a clear understanding of each model's purpose and features.

We'll break down their differences from motocross and supercross models like the SX series to enduro bikes such as EXC-F and XC to road models like the Super Duke R.

We’ll simplify things with a quick and digestible list of the names and what they mean, providing insight into all aspects related to KTM naming conventions. 

KTM 450 SX-F

KTM Motocross and Supercross Names

When it comes to KTM's motocross models, the SX name is synonymous with winning not just races, but championships. 

With a range of powerful 2-stroke and 4-stroke engines, KTM's SX lineup caters to various skill levels and preferences among off-road enthusiasts.

Here’s what it all means:

  • SX: This designation is for 2-stroke motocross bikes. 
  • SX-F: Adding the F signifies a 4-stroke engine
  • SX-E: The E indicates that it's an electric bike


KTM 390 EX-F

KTM Enduro Naming

Into enduro riding, and want to master the somewhat confusing lettering? Let's first understand the differences between EXC-F and XC designations and how to identify street-legal enduro models.

The EXC-F 4-stroke motor represents enduro cross-country motorcycles that are street legal, while bikes with an XC 2-stroke engine denote non-street legal cross-country dirt bikes designed for off-road racing purposes only. 

  • EXC-F: The E signifies an Enduro (street legal) cross-country (XC) motorcycle. The F confirms it has a 4-stroke engine, as there are no 2-stroke EXC models. 
  • XC: This designation is for 2-stroke cross-country dirt bikes with linkage rear suspension. While part of the offroad lineup, the XC models don't have lighting. 
  • XC-W: The W indicates the bike has PDS (linkless) suspension, milder engine tuning for tight woods, softer overall suspension, and lighting. 
  • XC-F: These are 4-stroke cross-country racers with linkage rear suspension but no lights. 
  • XCF-W: These are 4-stroke cross-country off-road enduro motorcycles with PDS (linkless) rear suspension, overall softer suspension, milder engine tuning for tight woods, and lighting.



KTM Supermoto Naming

If you're interested in supermoto motorcycles, KTM offers two distinct options: the SMR, a non-street-legal racing motorcycle designed for competition, and the SMC R, a street-legal bike with dirt-ready tires suitable for both road and track usage. Here’s the breakdown:

  • SMR: This is the non-street-legal racing designation, specifically for Supermoto Racing. 
  • SMC R: The SMC is a street-legal model, not a competition motorcycle. The R indicates it's dirt-ready and more off-road capable than the slick-tired SMR racer.


KTM 1290 Super Adventure R

KTM Adventure and Travel Bike Naming

KTM's adventure bike lineup consists of various models designed for different types of riders and terrains.

The “Travel” category encompasses most of these “adventure” bikes, except the Enduro R model, which offers some off-road capabilities but isn't as dirt-ready as other options.

Here’s a breakdown:

  • Super Adventure R: This is a V-twin adventure motorcycle, with the R indicating its off-road focus and longer suspension travel. 
  • Super Adventure S: The S signifies that this ADV is more street-oriented with less suspension travel. The S designation is unique to the Super Adventure model. 
  • Adventure: This is for the parallel twin street-oriented adventure models. 
  • Adventure R: parallel twin ADV motorcycle with more off-road focus, with the R indicating its off-road capabilities and longer suspension travel. 
  • Adventure R Rally: For the most hardcore off-roading in the ADV world, Rally is added to the R, and is available on a very limited basis. 
  • Enduro R:  Although named an Enduro, it's also street legal.  


KTM Super Duke R GT

KTM Naked Sportbike Naming

KTM's unfaired upright sportbike lineup starts with the Duke name. These bikes have been distinguished for their edgy design, lightweight, and outstanding power. Here are the differences between various Duke models and explore the features of the flagship Super Duke R:

  • Super Duke R: This designation indicates a big-bore V-twin at the top of the Duke lineup. Currently, there's no non-R Super Duke. 
  • Super Duke R GT: Adds some sport-touring flare to the above.
  • Duke: This is the standard naked parallel twin sportbike. 
  • Duke R: The R signifies upgraded performance, not dirt-readiness.



KTM E-Ride Electric Off-Road Bikes

KTM uses the E-Ride designation for its off-road motorcycles powered by electricity. 

These eco-friendly bikes provide a sustainable option in contrast to regular gasoline-driven motorcycles without sacrificing performance or features. Here’s how each is named:

  • SX-E: This is the electric-powered motocrosser. Currently used for a youth model, but that may change in the future. 
  • Freeride E-XC: Another outlier, it uses the XC (cross-country) designation but adds the E (electric power) before XC, unlike the 4-strokes (XC-F). Freeride indicates it's a trailbike rather than a competitive off-road motorcycle.


KTM RC 1190

KTM RC Superbike

If a motorcycle carries an RC designation, it comes equipped with full fairings and clip-ons for track-ready performance. 

These race-inspired machines are designed for riders seeking high-speed thrills on closed circuits or twisty roads.

  • RC: If it's a KTM RC, it features a full fairing and clip-ons, making it track-ready.


Now you will have a better understanding of the various designations used by KTM to differentiate their motorcycles. Each series has unique features and capabilities, from motocross and enduro models to adventure bikes and track-focused machines.

If you are in the market for a new KTM motorcycle or want to learn more about these impressive machines, be sure to check out our huge motorcycle selection at KTM World. Our team of experts can provide guidance and advice to help you find the ideal bike for your requirements.