Apollo RFZ Z40 140cc Adult Dirt Bike | 4-Speed Manual Clutch | Large Frame Off-Road Motorcycle
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Apollo RFZ Z40 140cc Adult Dirt Bike | 4-Speed Manual Clutch | Large Frame Off-Road Motorcycle
$1099 A real 4-stroke quad, sized and governed for young riders
The Apollo RFZ Z40 140cc Adult Dirt Bike is a large-frame off-road motorcycle built for trail riding, practice tracks, and aggressive recreational riding. Powered by a YX 140cc air-cooled 4-stroke single-cylinder engine with a performance NIBBI PE22 carburetor, this dirt bike delivers strong throttle response, smooth power delivery, and dependable trail performance.
Featuring a 4-speed manual transmission with clutch (N-1-2-3-4) and a rugged chain drive system, the Z40 gives riders full control over gearing and acceleration. The bike is equipped with front and rear hydraulic disc brakes, long-travel suspension, and a double-beam heavy-duty steel frame designed to handle jumps, rough terrain, and hard riding.
With a tall 32.5-inch seat height, high 14.5-inch ground clearance, and a 17/14 wheel setup, the Apollo Z40 is ideal for teen and adult riders looking for a capable mid-size dirt bike with professional-style handling.
Features & Specifications
| Item | Details |
|---|---|
| Model | Apollo RFZ Z40 / Vitacci Z40 |
| Type | Adult Gas Dirt Bike / Off-Road Motorcycle |
| Engine Brand | YX |
| Carburetor | NIBBI PE22 |
| Engine Type | 140cc, air-cooled, 4-stroke, single-cylinder |
| Transmission | 4-Speed Manual (N-1-2-3-4) |
| Clutch | Manual |
| Drive System | Chain drive |
| Bore × Stroke | 56 × 57 mm |
| Compression Ratio | 9.8 : 1 |
| Max Power | 11 HP @ 8000 RPM |
| Max Torque | 10.2 N·m @ 7500 RPM |
| Starting System | Kick start |
| Ignition | CDI |
| Fuel Tank Capacity | 1.03 gallons |
| Engine Oil Capacity | 0.24 gallons |
| Front Brake | Hydraulic disc |
| Rear Brake | Hydraulic disc |
| Front Tire | 70/100-17 |
| Rear Tire | 90/100-14 |
| Front Suspension | SYD non-adjustable, 30.3 inches |
| Rear Suspension | SYD adjustable, 13.8 inches |
| Frame | Double-beam heavy-duty steel frame |
| Seat Height | 32.5 inches |
| Wheelbase | 49.2 inches |
| Ground Clearance | 14.5 inches |
| Net Weight | 168 lbs |
| Gross Weight | 196 lbs |
| Dimensions (L × W × H) | 70 × 30.7 × 46 inches |
| Carton Size | 57.5 × 15 × 29.5 inches |
| Assembly Required | Front wheel, handlebar, rear shock |
| Colors | Red, Blue, White, Green |
Key Features
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YX 140cc 4-stroke air-cooled dirt bike engine
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Performance NIBBI PE22 carburetor
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4-speed manual clutch transmission
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Front and rear hydraulic disc braking system
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Large 17″ front and 14″ rear off-road wheels
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Adjustable rear suspension for trail tuning
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Heavy-duty double-beam steel frame
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High ground clearance for aggressive riding
-
Ideal for teen and adult off-road riders
Assembly & Delivery
A fully assembled unit is available only for pickup from the retail store in Dallas, Texas.
This dirt bike ships brand new and 70% assembled inside a metal crate.
Final assembly, preparation, basic maintenance, and all technical work must be completed by a certified technician.
Warranty:
30-day replacement parts only.
Labor, mechanic service, and returns are not covered.
Freight Shipping Includes:
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Lift gate service
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Residential delivery
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Shipping insurance
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Delivery appointment scheduling
⚠️ A working phone number is required for delivery coordination.
Electric Start
Push-button starting — no frustrating pull cords. A backup kick-start is there if you need it.
Automatic + Reverse
Fully automatic transmission with true reverse (D-N-R) makes it effortless to ride and easy to back out of tight spots.
Digital Gear Indicator
A clear digital readout shows the selected drive mode at a glance — confidence for new riders.
Parent Remote Shut-Off
Wireless remote lets a parent cut the engine instantly from a distance. Peace of mind, built in.
Adjustable Speed Limiter
Start slow, then open it up as your rider gains skill. You stay in control of top speed.
Tether Kill Switch
An automatic safety cutoff that stops the ATV if the rider separates from the seat.
Three layers of parent control
This isn't a toy — it's a real 4-stroke ATV engineered with youth safety first. You decide how fast, and you can stop it instantly.
Wireless Remote Shut-Off
Stop the engine from up to 30 ft away.
Adjustable Speed Limiter
Cap top speed while they're learning.
Tether Kill Switch
Auto-stops if the rider leaves the seat.
Hydraulic Disc Rear Brake
Strong, reliable stopping power.
Rated 4.6 / 5 by 151 buyers
Bought this for my 9-year-old and he's obsessed. The adjustable speed limiter let me start him slow then open it up as he got confident. Arrived crated and well-packed.
Was nervous ordering a $1,200 ATV online but their phone support walked me through everything. Shipping was free and showed up in 5 days. Runs great.
Questions, answered
Yes — it's built youth-first. It includes an adjustable speed limiter so you control top speed, a wireless remote shut-off so a parent can stop the ATV instantly, and a tether kill switch. We always recommend a helmet, supervision, and gradual speed increases as your rider gains confidence.
The ATV ships about 70% assembled in a protective metal crate. Final assembly (handlebars, wheels, mirrors, fluids) takes most people under an hour. Prefer it ready to ride? Add the Pro Assembly + Safety Check option and a certified technician fully assembles, tunes, and road-tests it before it ships.
Shipping, assembly & delivery
Free freight shipping
Ships free to the lower 48 in a protective metal crate. Freight delivery includes lift-gate service, residential delivery, shipping insurance, and a scheduled appointment.
~70% pre-assembled
Final assembly and prep take most people under an hour. A certified technician is required for final assembly, prep, basic care & maintenance. Prefer it ready to ride? Add Pro Assembly.
Warranty & returns
Free 30-day replacement-parts warranty, with 6- and 12-month extensions available. Labor, mechanic services, and returns are handled through our US-based support team.
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