Cyber Sale

TrailMaster TM29 125cc Dirt Bike, Large Frame, 4-Speed Manual, with Electric Start (17/14), Ages 12 and up

  • $1,399.44
  • $1,699.00
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 LARGER FRAME ** Big Wheel Size 17/14, Ages 12 and up **

The TM 29‐125 is identical to the TM27 except it has both a kick start and “ELECTRIC START”, High-performance 125cc 8.3hp GAS engine with a top speed of around 55 MPH and a seat height of 33.5” ** 4-speed manual transmission with front and rear disc brakes, inverted front shock, and a larger (70” Long) heavy duty frame than the TM24! 

The bikes full on motocross ergonomics and race suspension system make handling feel natural and unforced, and help it navigate over almost any type of terrain. Electronic CDI ignition makes key and kick starting effortless, keeps the bike running smoothly in all gears and provides a broad, even power band. And at only 172 pounds, the 125cc engine can propel the motorcycle to speeds of 55 miles per hour!

Specifications

Engine System

  • Engine Type ZM125cc, Single Cylinder, 4‐Stroke, Air Cooled
  • Displacement 124 ml
  • Max Power 8.3hp
  • Max Torque 6.64 lb. Ft
  • Compression Ratio 9.6:1
  • Shift Type N‐1‐2‐3‐4, Four‐Gear, Manual Shift
  • Start Type: Electric & Kick Start
  • Ignition CDI
  • Min. Fuel Consumption: ≤367g/kw.h
  • Max Range: ≤10.5 mile
  • Engine Oil:5W-30
  • Transmission Chain Drive: #428, 14/41T

Size Data

  • Overall Size: (L x W x H): 71.3" X 28.9" X 43.3"
  • Wheelbase: 49.8"
  • Seat Height: 33.5"
  • Ground Clearance: 13"
  • Fuel Capacity: 1.2 Gal/4.5 L
  • Tires: FT: 70/100‐17 ‐ RR: 90/100‐14 Knobby tires
  • Wheels: Steel 1.6 x 17" / 1.85 x 14" Rims, Cast Hubs

Frame/Suspension/Brake System

  • Frame: Twin Girders Steel Tube
  • Front Fork: Inverted 45*48‐735mm Forks, Non‐Adjustable
  • Rear Shock: 10*¢11*310mm, Spring Per‐load
  • Swing‐Arm: Steel Tube 14inch
  • Handlebar: Steel Crossbar, L=720mm; Dia=22mm
  • Front Brake: Hydraulic Single Piston Caliper, 210mm Disc
  • Rear Brake: Hydraulic Single Piston Caliper, 190mm Disc
  • Exhaust: Steel Pipe with catalyst converter (EPA Standard)
  • Crate Size: 62.6" x 14.8" x 29.9”
  • N.W: 143.3 LBS
  • G.W: 172 LBS

Assembly Instructions

Product Brochure

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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