Target Audience:
Youth racers, parents of young riders, dealers, and small-displacement race team mechanics
Market Segment:
Entry-level 50cc motocross competition
Main Competitors:
Cobra 50, Polini 50, Yamaha PW50/Peewee50 race builds
Key Advantage:
Factory-backed race pedigree, high-quality European components, extensive aftermarket tuning support
Chassis:
Lightweight chromoly tubular steel frame
Suspension:
KTM telescopic front fork and rear monoshock, fully adjustable
Brakes:
Hydraulic disc brakes front and rear
Engine:
Air-cooled 50cc two-stroke with liquid-cooled SX variants
Manual Type:
OEM illustrated parts catalog with exploded diagrams
Page Count:
Refer to product download for exact page count
Coverage Area:
Chassis and body components, complete replacement parts listing
Delivery Method:
Instant digital download — no shipping, no waiting
Access:
Unlimited use after download
Systems & Components Covered
Frame:
Main frame, steering head, mounting brackets, subframe components
Swingarm:
Swingarm assembly, pivot bolt, chain guide, chain adjuster
Front Fork:
Fork legs, sliders, springs, triple clamps, axle
Rear Suspension:
Shock absorber, linkage, needle bearings, mounts
Front Brake:
Caliper, master cylinder, disc, brake line, pads
Rear Brake:
Caliper, master cylinder, disc, pedal, linkage
Wheels & Tires:
Rims, spokes, hubs, wheel bearings, tires, tubes
Bodywork:
Front fender, rear fender, number plates, side covers, seat
Handlebar & Controls:
Handlebar, grips, levers, throttle assembly, cables
Footrests & Stands:
Foot pegs, kickstand, brackets, springs
Fuel Tank:
Tank, cap, petcock, mounting hardware, fuel line
Fasteners & Hardware:
Bolts, nuts, washers, clamps, circlips by section
Exploded Diagrams:
Illustrated exploded views for every assembly
Part Numbers:
Complete OEM part numbers listed in each section
Disassembly Support:
Ideal for disassembly, repair, and reassembly reference
Ordering Reference:
Cross-reference for dealer and online parts ordering
Quantity Columns:
Required quantity per assembly indicated in tables
OEM Parts Source:
Factory part numbering system for accurate replacement
Section Organization:
Parts grouped by chassis area for quick lookup
File Format:
PDF (searchable, bookmarked, zoomable)
Compatibility:
Windows, macOS, Linux, iOS, and Android — any device with a PDF reader
Requirements:
A PDF reader application (e.g. Adobe Acrobat Reader, free)
Searchability:
Fully text searchable for fast lookup of any topic
Print Quality:
High-resolution digital pages, printable at full clarity
Binding Type:
N/A — digital download, no physical binding
Paper Type:
N/A — digital download, no physical paper
Engine Type:
Air-cooled 50cc single-cylinder two-stroke (SX variants liquid-cooled)
Displacement:
Approximately 49cc
Cooling:
Air-cooled; liquid-cooled on SX Junior Racing versions
Lubrication:
Premix fuel and oil
Performance & Fuel System
Carburetor:
Dellorto slide carburetor
Fuel:
Premixed gasoline and two-stroke oil
Transmission:
Single-speed automatic (centrifugal clutch)
Parts Catalog Scope:
This catalog covers chassis components; engine part details may be referenced in separate engine catalog
Wheelbase:
Approximately 40 inches (1030 mm)
Seat Height:
Approximately 23-24 inches (585-610 mm)
Ground Clearance:
Approximately 8-9 inches, suitable for youth riders
Overall Length:
Refer to catalog or factory data sheet for exact figure
Curb Weight:
Approximately 85-90 lbs (39-41 kg), very lightweight for youth handling
Fuel Capacity:
Approximately 1 gallon (3.5-4 liters)
Crash Test Ratings:
N/A - motorcycles are not rated by crash test agencies
Front Brake:
Hydraulic disc brake for strong, controllable stopping
Rear Brake:
Hydraulic disc brake
Speed Restriction:
Throttle limiter screw allows parents to restrict top speed
Kill Switch:
Engine kill button on handlebar for emergency shutdown
Rider Notes:
Full protective gear and adult supervision recommended at all times
Infotainment:
N/A - competition motorcycle, no audio or display systems
Driver Assistance:
N/A - purely mechanical competition design
Ignition System:
Electronic CDI ignition for reliable starting
Design Philosophy:
Minimal electronics for simplicity, durability, and race reliability
Service Intervals:
Inspect chain, brakes, and fasteners before every ride
Chain Maintenance:
Regular chain lubrication and tension adjustment — high-wear item
Brake System:
Check brake pads and hydraulic fluid level frequently
Fork & Shock:
Periodic inspection of seals and bearing linkage points
Wheel Bearings:
Inspect and replace front and rear wheel bearings as wear item
Common Wear Items:
Brake pads, chain, sprockets, tires, grips, foot pegs, cables
Parts Replacement:
Use catalog exploded views and part numbers for correct replacement ordering
