The 11 to 15-year-old riders of the junior class are no longer beginners. These are future champions fighting for victory, no matter if it is the Junior Motocross World Championship or a regional championship. In this scene, the 85 SX is considered a winner's bike. With the most powerful engine in the field and a super lightweight, stable chassis, it does not need to shy away from a full size bike.
Cutting-edge 2-stroke technology, combined
with a precise 6-speed gearbox and hydraulic
clutch are the foundation of the 85 SX’s
superiority in all junior racing competition.
The high performance cylinder with
flow-optimized ports and a high precision
exhaust control valve provides the engine with
its unrivaled performance.
The hydraulic clutch mechanism by Formula
ensures an easy clutch action and well-defined
modulation on the 85 SX.
The 85 SX has super strong, tapered
handlebars made of high quality aluminum alloy
with a bend that’s perfect for motocross
The Formula braking system with radial
calipers – four pistons in front, two in the rear –
with lightweight wave brake discs – front
240mm diameter, rear 210mm – are the
reference in terms of controlled action and
A constant temperature balance for consistent,
high performance is ensured by an intelligent
cooling circuit with integrated crank case
cooling and two radiators.
Black coated high-end Excel rims, lightweight,
CNC machined hubs and black spokes with
lightweight aluminum nipples ensure the
highest stability at minimum weight on the 85
SX. The OEM MAXXIS tires are renowned for
their perfect traction and outstanding
Made of top quality chromoly steel with a
lightweight, bolt-on aluminum rear subframe,
the 85 SX frame ensures maximum stability at
minimum weight. It has a rugged polymer
coating in a noble black colour.
Up front of the 85 SX there is a pair of 43mm
upside-down forks with 270mm of travel, while
a PDS monoshock for the rear provides
optimum traction and surface contact. These
are both made by renowned supplier WP
Suspension at the highest quality. Of course,
rebound and compression damping can be
adjusted separately for a quick and precise
set-up to match the track and rider.
Ergonomics and function of the bodywork is
designed in such a way as to achieve complete
harmony between rider and bike.
The revised, cool looking graphic design provides a striking
ew look based on the big bikes. Don’t be surprised when someone
mistakes you for a grown-up.
|Design||1-cylinder, 2-stroke engine|
|Starting aid||Kick starter|
|Transmission||6-speed, claw shifted|
|Primary drive||19:66 straight cut spur gear|
|Clutch||Wet, multi-disc clutch, Formula hydraulics|
|EMS||Moric Digital 2M1|
|Frame design||Central-tube frame with double-cradle|
|Front suspension||WP upside-down Ø 43 mm|
|Rear suspension||WP PDS shock absorber|
|Suspension travel (front)||270 mm|
|Suspension travel (rear)||300 mm|
|Front brake||Disc brake|
|Rear brake||Disc brake|
|Front brake disc diameter||220 mm|
|Rear brake disc diameter||210 mm|
|Chain||1/2 x 5/16”|
|Steering head angle||66°|
|Wheelbase||1290 ± 10 mm|
|Ground clearance||352 mm|
|Seat height, unloaded||855 mm|
|Tank capacity (approx.)||5 l
Unleaded premium fuel (98 octane), mixed with 2-stroke engine oil (1:40)
|Weight without fuel, approx.||67.5 kg|