TrailMaster Powersports

TrailMaster TM24 125cc Dirt Bike - 4-Speed Semi Auto, Ages 12+

Regular price $1,199.00 USD
Color: Red

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TrailMaster TM24 125cc Dirt Bike full side view - 4-Speed Semi Auto
$1,199.00 USD
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TrailMaster TM24 125cc Dirt Bike - 4-Speed Semi Auto, Ages 12+


Description

The TrailMaster TM24 is a capable, mid-size 125cc dirt bike built for riders ages 12 and up who are ready to take their off-road skills to the next level. Powered by a high-performance 4-stroke, air-cooled engine delivering 8.3 horsepower, it pushes riders to speeds of up to 55 mph with a smooth, broad power band courtesy of its electronic CDI ignition. The 4-speed semi-automatic transmission makes gear changes accessible and confidence-inspiring, without sacrificing the engagement of real riding technique.

Full motocross ergonomics and a race-tuned suspension system allow the TM24 to tackle a wide variety of terrain naturally and efficiently. Front and rear hydraulic disc brakes provide reliable stopping power, while the heavy-duty cradle steel tube frame is built to handle the demands of active riding. At a 32.7" seat height and 161 lbs., this bike strikes the right balance between performance and manageability for younger and intermediate riders.


Key Features

  • 125cc 4-Stroke Air-Cooled Engine: ZM125cc single-cylinder engine produces 8.3 hp and a broad, even power band for confident riding across all gear ranges.
  • 4-Speed Semi-Auto Transmission: N-1-2-3-4 shifting pattern makes it approachable for developing riders while still delivering real gear-to-gear engagement.
  • Top Speed ~55 mph: Lightweight 161 lb. build paired with the 125cc engine allows for impressive performance on trails and dirt tracks.
  • Hydraulic Disc Brakes Front and Rear: 210mm front disc with hydraulic single piston caliper and 190mm rear disc deliver reliable, progressive stopping power.
  • Race Suspension System: Telescopic 45x48-700mm front forks and rear shock absorber help the bike handle rough terrain smoothly and confidently.
  • Electronic CDI Ignition: Makes kick starting effortless and keeps the engine running smoothly across all gears.
  • 17"/14" Wheel Configuration: Steel rims with cast hubs and motocross-spec tires sized for real dirt bike handling and stability.
  • Heavy-Duty Cradle Steel Tube Frame: Built for durability and designed with full motocross ergonomics for a natural, unforced riding feel.
  • Seat Height 32.7": Well-suited for riders ages 12 and up, offering a manageable reach to the ground without compromising control.
  • EPA Standard Exhaust: Steel pipe exhaust includes a catalytic converter, meeting EPA emissions standards.

Shipping

This product requires additional shipping. If you'd like a quote before you purchase, fill out the form on this page or email us at service@omahasportsandgames.com for a delivery ETA or to confirm shipping details.


What's Included

  • TrailMaster TM24 125cc Dirt Bike

Why You'll Love It

The TM24 is the kind of bike that grows with a rider - approachable enough for a first real dirt bike, capable enough to keep experienced young riders engaged for years. The semi-auto transmission removes the intimidation of a full manual clutch while still building genuine riding skill and feel. Engineered with race-grade ergonomics and suspension, it handles like a proper motocross machine, not a starter toy. The heavy-duty steel frame and hydraulic brakes mean parents can feel confident in the bike's durability and safety. Whether it's trail riding on weekends or getting started on a track, the TM24 delivers the performance and reliability to make every ride count.


Product Specifications

View Product Specs
Engine Type ZM125cc, Gas, Single Cylinder, 4-Stroke, Air Cooled
Displacement 124cc
Max Power 8.3 hp
Max Torque 9.0 Nm / 5000 rpm
Compression Ratio 9.6:1
Shift Type N-1-2-3-4, 4-Speed Semi-Auto
Start Type Kick Start
Ignition CDI
Transmission Chain Drive; #428, 14/41T
Engine Oil 5W-30
Fuel Capacity 3.5 L / 0.92 Gal.
Overall Size (L x W x H) 64.1" x 29.5" x 41.3"
Wheelbase 42.3"
Seat Height 32.7"
Ground Clearance 13.6"
Wheels Steel 1.6 x 17" / 1.85 x 14" Rims, Cast Hubs
Tires Front: 70/100-17 / Rear: 90/100-14
Frame Cradle Steel Tube Frame
Front Fork Telescopic 45x48-700mm, Non-Adjustable
Rear Shock 10x275mm, Non-Adjustable
Swing-Arm Steel Tube
Handlebar Aluminium 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 Catalytic Converter (EPA Standard)
Net Weight 134.5 lbs.
Gross Weight 161 lbs.
Packing Size 54.5" x 14.8" x 29.7"

Manuals & Guides


FAQ

What age and size rider is the TM24 best suited for?

The TM24 is designed for riders ages 12 and up. With a 32.7" seat height and semi-auto transmission, it is a great fit for teenagers and young adults who are ready for a real mid-size dirt bike. Riders who are still developing their coordination will benefit from the semi-auto shifting, while older or more experienced riders will appreciate the bike's genuine motocross performance.

What does "4-speed semi-auto" mean? Do I need to use a clutch?

Semi-automatic means the bike has a 4-speed gearbox that you shift through using a foot lever, but it does not require manually operating a hand clutch to change gears. You simply lift or press the shift lever to move between gears. This makes it significantly easier to learn than a fully manual transmission while still teaching real gear-shifting habits.

Does the TM24 require assembly?

The TM24 arrives partially assembled and will require some final assembly before riding, which typically includes attaching handlebars, mirrors, and performing a general safety inspection. A basic set of tools and mechanical familiarity is recommended. For those who are not comfortable with assembly, a local powersports dealer may be able to assist.

How does the TM24 ship? Will it arrive on a pallet?

The TM24 ships freight and will typically arrive on a pallet via a freight carrier. Delivery is generally curbside, meaning the carrier will bring it to the end of your driveway. If you need inside delivery or liftgate service, please contact us before purchasing so we can arrange the appropriate shipping terms.

Is the TM24 street legal?

No, the TM24 is designed for off-road use only and is not street legal. It is intended for use on private property, trails, and off-road riding areas. Always check your local regulations regarding off-road vehicle use before riding.

What kind of fuel does the TM24 use?

The TM24 runs on regular unleaded gasoline and has a fuel capacity of 3.5 liters (0.92 gallons). The engine requires 5W-30 motor oil. Always refer to the owner's manual for specific maintenance intervals and fluid recommendations.

Product specifications table
Specification name Specification Value
Fuel supply Gasoline

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