KTM 85 SX (19/16) - 2005 Specifications and Reviews

The 2005 KTM 85 SX (19/16) is a competition-focused minibike engineered for junior motocross riders transitioning to larger machines. Its liquid-cooled two-stroke engine and professional-grade WP suspension deliver aggressive performance and precise handling on demanding terrain. Renowned for its lightweight construction and race-ready geometry, it remains a benchmark for youth off-road competition.

2005
4 stars Average rating: 4 from 2 votes
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General information

CategoryMinibike, cross
Year2005
ModelKTM 85 SX (19/16)

Engine and Transmission Specifications

ClutchWet multi-disc clutch, operated hydraulically
Transmission type,final driveChain
Cooling systemLiquid
IgnitionMoric digital 2M1
Fuel systemCarburettor. Keihin PWK 28
Bore x stroke47.0 x 49.0 mm (1.9 x 1.9 inches)
Engine typeSingle cylinder, two-stroke
Capacity:84.90 ccm (5.18 cubic inches)

Brakes, suspension, Frame and wheels

Rear brakes diameter216 mm (8.5 inches)
Rear brakesSingle disc
Front brakes diameter216 mm (8.5 inches)
Front brakesSingle disc
Rear suspensionWP PDS monoshock
Front suspension travel43 mm (1.7 inches)
Front suspensionWP USD
Trail81 mm (3.2 inches)
Rake (fork angle)24.0°
Frame typeChromium molybdenum
 
 

Physical measures and capacities

Fuel capacity5.00 litres (1.32 gallons)
Wheelbase1,278 mm (50.3 inches)
Ground clearance415 mm (16.3 inches)
Seat height900 mm (35.4 inches) If adjustable, lowest setting.
Dry weight68.0 kg (149.9 pounds)

Other specs

MaintenanceFind parts, fluids, filters, maintenance tools and service items on eBay

Performance Profile & Rider Fit

Best For

Track60%
City5%
Cornering80%
Daily Riding5%
Touring3%
Passenger0%

Rider Profile

Best ForThis is a youth-focused competition minibike designed for young, developing riders with prior dirt bike experience rather than absolute beginners.
PurposeBuilt purely for motocross competition and training, it exists to help junior racers develop race craft on scaled-down but genuinely capable machinery.
Rider FitIts light 68 kg dry weight and low 900 mm seat height suit smaller, younger riders rather than full-sized adults.
CharacterIt offers sharp, eager two-stroke power delivery and quick-turning agility typical of small-bore motocross bikes, rewarding an aggressive, active riding style.
Not Ideal ForIt is not suitable for road riding, touring, commuting, or carrying a passenger, and is not sized for taller or heavier adult riders.

Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.

Rider Reviews

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