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MotoTec X3 125cc 4-Stroke GAS Pit Bike Green

MotoTec X3 125cc 4-Stroke GAS Pit Bike Green


Electric Start, 125cc 4-Stroke Dirt and Pit Bike. Great for both Kids and Adults.


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This new generation of Kids bikes have all the features and simplicity of the big brands at an affordable price.

Why do we like this Bike so much?

You have the simplicity of a 4-stroke and electric start, and the power of a 125cc engine. This bike is going to be a delight for riders of many skill levels.

This bike has a manual transmission with both electric and kick start.

These bikes come in several sizes! See a comparison of the entire range here


Motor: 125cc 4-Stroke

Torque / HP 6.63 ft-lb / 8.3HP

Transmission: 4 Gear Manual Shift (N-1-2-3-4)

Top Speed: 47 mph

Starting: Electric push-button and Kick Start


Frame: Chromalloy

Suspension: Front & Rear

Seat Height: 32 in

Tires: 17 in front and 14 in Rear

Max Rider Weight: 190 lbs

Foot-operated brake

Why might you consider something else?

Click on the links ahead if you want to see the next size up or down.

Outside of that it really comes down to budget.

How hard is it to get parts?

This is the question every experienced buyer asks as it’s really important to maintain the bike over time.

We aim to carry parts for all the products we sell.

Here are all the parts we carry for this range of bikes.

How old should my child be before riding this?

This bike is larger for older riders or parents.

What else should I know?

Please choose carefully and read our return policy. Due to very high shipping costs it is very expensive if you need to return a Bike.

Warranty: 60 Day Parts Replacement

Cannot be shipped to California

Detailed Specifications:

Motor: 125cc 4-Stroke Single Cylinder Air Cooled
Factory Model# K3
Displacement: 124 ml
Max Power: 8.3 HP @ 7000 RPM
Max Torque: 6.63 ft-lb @ 5000 RPM
Compression: 9.6:1
Transmission: Manual with Clutch Lever (N-1-2-3-4)
Engine Start: Electric Start & Kick Start (12v/4ah battery)
Drive Train: #428 Chain (14T, 41T Sprockets)
Fuel Tank: 4.5 Liter
Wheelbase: 47.24 inches
Front Tire: 70/100-17 (17 inch)
Rear Tire: 90/100-14 (14 inch)
Seat Height: 32 inches
Ground Clearance: 11.81 inches
Frame: Perimeter Cradle Type Steel Tube
Front Forks: Non-Adjustable Inverted 45x48x735mm, Travel 140mm, Tube 33mm
Rear Shock: Hydraulic Coil Spring 310mm, Travel 54mm
Swing Arm: 490mm Steel
Rims: 1.6×17, 1.85×14 Cast
Front Brake: Single Piston, 210mm Disc
Rear Brake: Single Piston, 190mm Disc
Dirt Bike Dimensions: 67x29x42 inches
Dirt Bike Dry Weight: 143 lbs
Box Size: 63x15x30 inches
Box Weight: 172 lbs
Top Speed: 47 mph (with adjustable speed limiter)
Cruising Range: miles per tank
Recommended Age: 16+


Mototec USA