Powered by a proven 84 cc engine combined with a chassis designed to maximise engine performance, the KX85 motorcycle is engineered to give young racers a competitive edge. With factory-inspired components and a choice of wheel sizes to accommodate a wider range of riders, these serious race machines help carve the path to the podium.
FEATURING:
84 cc LIQUID-COOLED, 2-STROKE SINGLE-CYLINDER ENGINE
NEW KYB ø43 mm INVERTED FRONT FORK AND UNI TRAK REAR SUSPENSION
NEW RIGID PERIMETER FRAME
NEW LARGE ø240 mm FRONT, ø220 mm REAR DISC BRAKES
UPDATED FACTORY-INSPIRED KX STYLING
ADDITIONAL VEHICLE FEATURES:
NEW aluminium Renthal Fatbar handlebar with ODI Lock-On grips
NEW ERGO-FIT adjustable 8-position handlebar mount
NEW Larger riding triangle and wider handlebar and footpegs
A robust perimeter frame delivers the strength and torsional rigidity needed to harness the engine’s full power, giving riders the confidence to push hard on the track. Complementing the frame are new high-rigidity front forks and a long-stroke rear suspension, along with a powerful braking system. Built with the same “Built to Win” spirit that defines the full-size KX models, the new machine is engineered to give young racers a competitive edge.
THE RIGHT FIT
Sized Right for You
Feeling at one with your machine is extremely important for speed and control – especially for aspiring racers learning how to get the most from themselves and their bikes. For 2026, the KX85 and KX85 L offer a roomier rider triangle, wider handlebar, greater ERGO-FIT adjustability, and a host of high-grade, big-bike-style ergonomic components designed for enhanced control and comfort.
ENGINE
Proven Performance
Designed to deliver both ample power across the rev range and strong top-end performance, the 84 cc 2-stroke single-cylinder engine offers winning potential in a highly competitive class. The high-performance engine produces crisp, responsive power and offers proven durability to finish each ride with confidence. A close ratio six-speed transmission and manual clutch allow aspiring racers to hone their shifting skills and get maximum performance out of the KX85 motorcycle.
Technical Specifications
Engine
2-stroke Single with KIPS
Displacement
84 cc
Bore x Stroke
48.5 x 45.8 mm
Compression Ratio
10.9:1 (low speed), 9.0:1 (high speed)
Induction
Piston reed valve
Fuel System
Carburettor: Keihin PWK28
Ignition
Digital-CDI
Starting
Primary kick
Cooling
Liquid-cooled
Lubrication
Pre-mix (32:1)
Transmission
6-speed, return
Primary Reduction Ratio
3.400 (68/20)
Gear Ratio 1st
2.538 (33/13)
Gear Ratio 2nd
1.875 (30/16)
Gear Ratio 3rd
1.500 (27/18)
Gear Ratio 4th
1.250 (25/20)
Gear Ratio 5th
1.090 (24/22)
Gear Ratio 6th
0.956 (22/23)
Final Reduction Ratio
3.643 (51/14)
Clutch
Wet multi-disc, manual
Final Drive
Chain
Frame
Perimeter, high-tensile steel
Front Suspension
ø43 mm inverted fork with adjustable compression and rebound damping
Rear Suspension
Uni Trak, single shock with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload
Powered by a proven 84 cc engine combined with a chassis designed to maximise engine performance, the KX85 motorcycle is engineered to give young racers a competitive edge. With factory-inspired components and a choice of wheel sizes to accommodate a wider range of riders, these serious race machines help carve the path to the podium.
FEATURING:
84 cc LIQUID-COOLED, 2-STROKE SINGLE-CYLINDER ENGINE
NEW KYB ø43 mm INVERTED FRONT FORK AND UNI TRAK REAR SUSPENSION
NEW RIGID PERIMETER FRAME
NEW LARGE ø240 mm FRONT, ø220 mm REAR DISC BRAKES
UPDATED FACTORY-INSPIRED KX STYLING
ADDITIONAL VEHICLE FEATURES:
NEW aluminium Renthal Fatbar handlebar with ODI Lock-On grips
NEW ERGO-FIT adjustable 8-position handlebar mount
NEW Larger riding triangle and wider handlebar and footpegs
17” front wheel and 14” rear wheel
NEW Dunlop Geomax MX34 tyres
Team Green Racer Support Program
content_description2
Power;Performance;Technology;Details#####Engine|2-stroke Single with KIPS;Displacement|84 cc;Bore x Stroke|48.5 x 45.8 mm;Compression Ratio|10.9:1 (low speed), 9.0:1 (high speed);Induction|Piston reed valve;Fuel System|Carburettor: Keihin PWK28;Ignition|Digital-CDI;Starting|Primary kick;Cooling|Liquid-cooled;Lubrication|Pre-mix (32:1);Transmission|6-speed, return;Primary Reduction Ratio|3.400 (68/20);Gear Ratio 1st|2.538 (33/13);Gear Ratio 2nd|1.875 (30/16);Gear Ratio 3rd|1.500 (27/18);Gear Ratio 4th|1.250 (25/20);Gear Ratio 5th|1.090 (24/22);Gear Ratio 6th|0.956 (22/23);Final Reduction Ratio|3.643 (51/14);Clutch|Wet multi-disc, manual;Final Drive|Chain#####Frame|Perimeter, high-tensile steel;Front Suspension|ø43 mm inverted fork with adjustable compression and rebound damping;Rear Suspension|Uni Trak, single shock with adjustable dual-range (high/low-speed) compression damping, adjustable rebound damping and adjustable spring preload;Front Wheel Travel|275 mm;Rear Wheel Travel|275 mm;Rake|29.2°;Trail|103 mm;Steering Angle (L/R)|39° / 39°;Front Tyre|70/100-17 40M;Rear Tyre|90/100-14 49M;Front Brake/s|ø240 mm petal disc;Front Caliper/s|Dual-piston;Rear Brake|ø220 mm petal disc;Rear Caliper|Single-piston#####ERGO-FIT|Yes#####Dimensions (LxWxH)|1,835 x 800 x 1,115 mm;Wheelbase|1,265 mm;Road Clearance|295 mm;Seat Height|830 mm;Curb Weight*|76.4 kg;Weight without Fuel|72.7 kg;Fuel Capacity|5.0 litres;Model Code|KX85ETFNN
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