Little bikes, big power: KTM minis enhance handling, stability

Publish Date: 
Jun 3, 2014

MURRIETA, Calif. - Performance upgrades highlight KTM's mini lineup for 2015. The company announced these updates along with information on the 2015 model year two- and four-strokes.

85 SX
"With the most powerful engine in the field and a super lightweight, stable chassis, this bike is the ultimate for amateur racing," KTM said.

The 85 SX uses high-end WP suspension technology and added a reworked cylinder with a revised transfer port for improved reliability. A newly designed swingarm, 500 grams lighter, is also fitted and offers optimized stiffness at minimum weight. A new chain guide, chain roller and brake hose clamps are included on the bike, along with Maxxis tires.

Specifically, the 85 SX features:

  • Two-stroke technology combined with a six-speed gearbox and a hydraulic clutch 
  • A new reworked high-performance cylinder with flow-optimized ports and a high precision exhaust control valve. The cylinder now has an improved transfer port for better reliability
  • The crankshaft with a "perfectly sized" lightweight conrod enabling minimum vibrations and maximum durability
  • A high-quality chromoly steel frame with a lightweight, bolt-on aluminum rear subframe, offering maximum stability at minimum weight
  • A new swingarm for a 500 gram weight savings and optimized stiffness
  • Air filter changes that are possible within seconds without tools -- a standard feature on the bigger KTM bikes
  • WP suspension with 43mm upside-down forks and a PDS monoshock, all fully adjustable
  • New chain guide and chain roller
  • New brake hose clamps
  • Lightweight CNC-machined hubs paired with Excel rims
  • New Maxxis tires 
  • Renthal handlebars
  • A hydraulic clutch mechanism by Formula for an easy and precise clutch action
  • High-quality Formula braking system with lightweight Wave discs
  • New graphic design 

65 SX
The 65 SX is a fully-fledged motorcycle for young riders (8 to 12 years old), according to KTM. The 65 SX engine utilizes cutting edge two-stroke technology, an easy-to-use six-speed gearbox and a new optimized ignition curve for a smoother power delivery. In addition, the bike features:

  • 35mm upside down WP Suspension front forks, fully adjustable with 215mm of travel with "outstanding" riding stability
  • A new high-quality rear shock with new settings, now including high- and low-speed compression damping adjustment
  • New modified frame to accommodate new shock width
  • Renthal handlebars
  • Hydraulic clutch mechanism by Formula for an easy clutch action
  • High-quality brakes with Wave discs
  • Maxxis tires
  • New graphics

50 SX and 50 SX Mini
The 50 SX and 50 SX Mini are "Ready to Race" KTMs for young MX riders (4 to 8 years old). "These machines are high-quality, racing motorcycles, which are easy to control and have an engine that is distinguished with a steady power delivery, as well as an automatic clutch, which is great for novice riders. The 50 SX Mini differentiates by being oil injected to make the first race bike even easier to maintain. These bikes may be small in size, but they are being designed and built by the same engineers that produce our World Championship winning machines in the adult classes," KTM said.

The 50s feature:

  • A modern, compact two-stroke engine with "superb, manageable power"
  • Liquid cooling system that even cools the crankcase
  • A centrifugal multi-disc automatic clutch of easily manageable acceleration, which can be easily adjusted to the requirements of the track and rider skills.
  • Upside-down WP Suspension front forks and a monoshock linked directly to the swingarm
  • Formula hydraulic brakes front and rear
  • Super lightweight black anodized aluminum rims
  • Maxxis tires 
  • Renthal handlebars
  • New graphics
  • An optional power reduction kit from the PowerParts program for absolute beginners

For more information on KTM's two- and four-stroke lineup for 2015, click HERE.