Cyber Sale

Load image into Gallery viewer, new! TrailMaster MK125 Dirt Bike 4-Speed Manual Dual Disc Brakes, Electric Start (14/12), Ages 12 and up - GoKarts USA®

Load and play video in Gallery viewer, TrailMaster MK125E Pro Series Dirt Bike, BOSCH EFI, 4-Speed, Electric Start, Dual Disc Brakes, (14/12) Wheels

Cyber Sale

TrailMaster MK125E Pro Series Dirt Bike, BOSCH EFI, 4-Speed, Electric Start, Dual Disc Brakes, (14/12) Wheels

$1,599.44
$1,699.00

The TrailMaster MK125E Pro Series Dirt Bike, available in a range of colors, introduces a 125cc 4-stroke Fuel Injected engine with both kick and electric start options. Equipped with a 4-speed automatic transmission and inverted front shocks, this premium mid-size bike from JHL Offroad offers a reliable and high-performance ride, weighing just 149lbs with a seat height of 29.5".

Enhance your riding experience with the TrailMaster MK125E Pro Series Dirt Bike. Equipped with premium features like inverted front shock absorbers, nitrogen air gas rear shock absorber, and a performance stainless steel muffler, this bike delivers superior performance and durability. The race suspension system and motocross ergonomics provide a natural and effortless handling, while the quality front and rear disc brakes ensure a smooth ride over any terrain. With electronic EFI ignition, starting the bike is a breeze and the broad, even power band keeps it running smoothly in all gears.

Features

Bosch EFI System
Air-cooled, 4-stroke
Electric start, with kick backup
Low 29" seat height for smaller riders
Newly designed strong frame
Inverted front shocks
Nitrogen air gas rear shock absorber
Aluminum linkage
Performance stainless steel muffler
Waterproof wire harness
Alloy foldable handle levers
Alloy wheels and hubs

Specifications

Engine Type	Single cylinder, four stroke, air-cooling
Displacement	123.67 ml
Max Power	6.3/7500 (1±1.5%)
Max Torque	8.8/5500（1±1.5%）
Compression Ratio	9.0:1
Shift Type	N-1-2-3-4, 4-speed
Start Type	Electric / Kick Start
Ignition	EFI
Min. Fuel Consumption:	≤367g/kw.h
Minimum turning radius :	1900 mm
Lubricant：	SF15W/40
Transmission:	Chain Drive

Overall Size (L x W x H)	16207001100 mm / 63.8227.5842.9 Inch
Wheelbase	1150 mm / 45.31 Inch
Seat Height	750 mm / 29.55 Inch
Ground Clearance	260 mm / 10.24 Inch
Fuel Capacity	3.5 L / 0.92 Gal.
Wheels	SteelRims, High Quality Alloy Hubs
Tires	YUANXING FT: 60/100 -14 - RR: 80/100 -12

Frame	High quality Steel Frame
Front Fork	Inverted front shock absorbers 43/45mm
Rear Shock	Rear none-adjustable mono shock
Upper and Lower Connecting Board	Alloy
Handle Lever	Foldable
Front Brake	Disc
Rear Brake	Disc
Exhaust	Stainless steel muffler

Packing Size	1420440860 mm / 55.95 17.3433.88 Inch
N.W/LBS	68 KGS / 149.6 LBS
G.W/LBS	97 KGS / 213.4 LBS

Circular Shifting: We have seen some bikes being sold that use circular shifting. We don't sell them. Circular Shifting means that when the bike is in 4th gear, if you shift up, it goes back into neutral, then 1st gear,

FAQ Accordion with Animation

Frequently Asked Questions

When will my order be shipped and how long does delivery take?

Orders containing in-stock items typically ship within 3–5 business days. Orders that include assembly will require 7–10 business days to prepare. Please note that during the holiday season (Thanksgiving through Christmas), processing times may be longer due to high order volume. Once your order has shipped, you’ll receive an email with tracking information. Most orders are shipped via Less Than Truckload (LTL) freight and generally arrive within 3–7 business days. Deliveries to remote areas (such as mountains, forests, valleys, or islands) may take longer. You can check the estimated delivery date on the carrier’s website using the tracking number we provide.

How your vehicle is shipped?

Unless otherwise noted, the vehicles we offer are shipped crated or on a pallet and do not come assembled unless you’ve selected our assembly service. Assembly typically requires a few basic tools and mechanical knowledge. If you're not confident in your ability to safely assemble a high-speed off-road vehicle, we strongly recommend selecting professional assembly or having it assembled by a local mechanic.

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Do you offer financing?

Yes. Buy-now-pay-later financing is available with our preferred partner, BreadPay® (please see their icon under product pricing for details).

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How can I get assistance if I have question on products?

Please call 888-886-5846 and talk to one of our knowledgeable sales representatives between 9am-3pm PST. Or send us email at orders@gokartsusa.biz.

What warranty is included with my purchase?

You're covered with confidence at GoKarts USA®. Your satisfaction is our top priority. Every purchase comes with manufacturer-backed warranty protection—including up to 12 months of engine coverage—to keep your ride running strong. TrailMaster products also include a 6-month parts warranty for added peace of mind.

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What does 95% or 98% Assembly Mean? What do I need to assemble if shipped in crate?

For shipping safety, most vehicles cannot be fully assembled prior to delivery.

Minor assembly is required—this typically includes installing mirrors, connecting the battery, adjusting handlebars, and other small components. Before operation, please ensure all screws and fasteners are tightened, engine fluids are at proper levels, and the battery is fully charged. Your factory warranty remains valid right out of the box.

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TrailMaster MK125E Pro Series Dirt Bike, BOSCH EFI, 4-Speed, Electric Start, Dual Disc Brakes, (14/12) Wheels

Features

Specifications

Frequently Asked Questions

Customer Reviews