Trailmaster TM27-125 Children's Dirt Bike

In stock

Regular price $1,249.99

BDX is the only online seller, in the USA, with full parts and phone technical support for this type of vehicle. Read from others who purchased from our competition --  click here Read the full case for buying only from BDX -- click here.

Comes with FREE ONE YEAR WARRANTY: We are the only vehicle seller with a full ONE year warranty.  We do this because we stand for service after the sale!! 

Call and speak to a live person -- no automated phone system.


  • Youth size dirt bike
  • 125cc engine
  • Manual transmission



This vehicle can come fully assembled or partially assembled -- see options. Partially assembled is the default.


One Year Free Warranty -- Includes ALL Parts

Lifetime Free Phone Tech Support

Guaranteed Parts Availability


Guaranteed Ride Plan

No Shipping Fee Option

25% Replacement Parts Discount

BDX the Only Seller Who Fully Supports What They Sell

How BDX Compares to the Other Guys

BDX, the ONLY Place You'll Get Straight Talk

BDX Clears the Confusion Intentionally Created by Other Sellers

Machine Shop Customization Available

The Only Seller With Performance Parts for Speed, Power, Robustness

Seven Reasons to Choose BDX

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  • Engine Type: ZM125cc, Single Cylinder, 4-Stroke, Air Cooled
  • Displacement: 124 ml
  • Max Power: 6.2(1±10%)/7000(1±5%) kw/r/min
  • Max Torque: 9.0(1±10%)/5000(1±5%) N.m/r/min
  • Compression Ratio: 9.6:1
  • Shift Type: N-1-2-3-4, Four-Gear Manual Shift
  • Start Type: Kick Start
  • Ignition: CDI
  • Min. Fuel Consumption: ≤367g/kw.h
  • Max Range: ≤10.5mile
  • Engine Oil #: SJ5W一30
  • Transmission: Chain Drive; #428,14/41T
  • Overall Size (L x W x H): 71.3"X28.9"X43.3" (1810*735*1100MM)
  • Wheel Base: 49.8" (1265MM )
  • Seat Height: 33.5" (850MM)
  • Ground Clearance: 13" (330MM)
  • 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: Twin Girders Steel Tube Frame
  • Front Fork: Inverted 45*48-735mm Forks, Non-Adjustable
  • Rear Shock: ¢10*¢11*310mm ,Spring Per-load
  • Swing-Arm: Steel Tube 14inch
  • Handle Bar: 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)
  • Packing Size(inch): 62.6x14.8x29.9 inch
  • N.W/LBS: 143.3 LBS
  • G.W/LBS: 172 LBS