Cyber Sale

TrailMaster SX125 Pro Series Dirt Bike, Electric Start, 4-Speed Manual, Dual Disc Brakes, (19/16) Wheels

  • $1,749.44
  • $2,049.00
Color
Red
Blue
Green

The SX125 Pro Series Dirt Bike, introduced by TrailMaster in partnership with JHL Offroad, is a high-end mid-size option. Equipped with a dependable Zhongshen 125cc 4-stroke 6.3hp engine, it offers both kick and electric start options. The bike boasts a seat height of 32.7", 19/16 wheels, and a lightweight build of just 189lbs. Available in red, blue, and green, the SX125 also features a 4-speed manual transmission, front and rear disc brakes, and inverted front shock.

Premium additions to the Pro-Series dirt bike include electric and kick start options, a powerful Zongshen 125cc engine, and a new frame design for optimal performance. The inverted front shock absorber and 33" seat height make it suitable for various riders. The non-slip seat and nitrogen air gas rear shock absorber with aluminum linkage provide a comfortable ride, while the stainless-steel muffler and alloy handlebar and triple clamps ensure top-notch performance. Additionally, the bike features foldable handle levers, reinforced alloy rims and hubs, and superior quality front and rear disc brakes.

Key Features

Electric and kick start
Famous brand Zongshen 125cc engine
Newly frame design to achieve ultimate performance
High performance inverted front shock absorber
33” seat high perfect for wide groups of riders
Wide and high-quality non-slip seat for comfortable riding
Nitrogen air gas rear shock absorber w/aluminum linkage
Performance stainless steel muffler
Alloy handlebar
Alloy upper and lower triple clamps
Alloy foldable handle levers
High quality reinforced alloy rims and hubs
Large 19” front and 16” rear Yuanxin Tires
Superior quality front and rear disc brakes

Specifications

Engine Type Zongshen BS125 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 Four gear, non-circulate gear
Start Type Electric / Kick Start
Ignition CDI
Min. Fuel Consumption ≤367g/kw.h
Minimum Turning Radius 1900 mm
Lubricant Type SF15W/40
Transmission Chain Drive

Size Data

Overall Size (L x W x H) 71.31 x 29.16 x 43.34 Inch / 1810×740×1100 mm
Wheelbase 49.25 Inch / 1250 mm
Seat Height 32.70 Inch / 830 mm
Ground Clearance 13.39 Inch / 340 mm
Fuel Capacity 1.56 Gal. / 6 L
Wheels Alloy 19/16 Rims, Alloy Hubs
Tires YUANXING FT: 70/100-19 - RR: 90/100-16

Frame/Suspension/Brakes

Frame High quality Steel Frame
Front Fork Inverted, non-Adjustable
Rear Shock Alloy U&D connector, non-Adjustable
Triple Clamps Alloy
Handle Alloy and Foldable
Front Brake Disc
Rear Brake Disc
Exhaust Stainless

Packing and Loading

Packing Size 63.82*17.92*33.49 Inch / 1620*455*850 mm
N.W/LBS 189.2 LBS / 86 KGS
G.W/LBS 237.6 LBS / 108 KG
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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