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TrailMaster TM21 Youth Dirt Bike

Valued up to: $1889.98

$ 1049.99 + Free Shipping!

Buy 2 or more at: $1029.99 ea.

Instant Check Price: $1007.99

Trailmaster's TM21 Youth Dirt Bike features powerful front and rear disc brakes, a heavy-duty twin-spar frame, and an easy-to-use smei-automatic clutch. Youth will have a great time with the TM21's powerful 124cc, four-stroke engine and the semi-automatic clutch allows for super-simple shifting. With a midsize frame, 29 inch seat height and 125 pound curb weight, the TM21 motorcycle can be riden by teens with ease. The TrailMaster TM21's aggressive knobby tires mounted on a 14 inch front and 12 inch rear rim provide grippy traction on off-road trails and instill confidence for even novice riders. A trail-ready full suspension setup including front hydraulic forks and a rear monoshock swingarm keep this bike rock steady even on the toughest terrain! Available in your choice of several different colors.


  • Model: TrailMaster TM21
  • Engine: Single Cylinder, 4-stroke, Air-cooled
  • Displacement: 124cc
  • Max Power: 6.2(1+-10%) / 7000(1+-5%) kw/rpm
  • Max Torque: 9.0(1+-10%) / 5000(1+-5%) N.m/rpm
  • Max Speed: TBD
  • Transmission: Semi-Automatic clutch
  • Gearing: N-1-2-3-4
  • Final Drive: Chain
  • Starting system: Kick
  • Ignition: CDI
  • Fuel capacity: .92 gal.
  • Brakes (Front/Rear): Hydraulic Disc / Hydraulic Disc
  • Wheels (Front/Rear): 1.6x14 / 1.85x12
  • Tires (Front/Rear): 60/100-14 / 80/100-12
  • Suspension (Front/Rear): Telescopic Forks / Swing-Arm
  • Ground Clearance: 10.6 inches
  • Max load: TBD
  • Wheelbase: 41.5 inches
  • Seat Height: 29.1 inches
  • Net Weight: 134.5 lbs.
  • Gross Weight: 161 lbs.
  • Dimensions (LxWxH): 60.2x28.7x39.8 inches
  • Shipping Dimensions (LxWxH): 54.5x14.8x30 inches

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Standard Service and Support
Premium Service and Support
Shipping Insurance Free Free
Return Period 60 Days 60 Days
Support Online and Email Online, Email and Phone
Engine 6 Months 12 Months
Parts * ‡ 6 Months 12 Months
Normal Wear Parts ** ‡ 7 Days 30 Days
Service Kit *** -
  • Unlimited Lifetime Mechanic Online and Phone Tech Support
  • 1 qt. High-grade Oil
  • 11 oz. Lucas Chain Lube
  • 1 High-performance Spark Plug
  • 1 Professional-grade Fuel Filter
  • Not required to return warranty parts
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* Excludes Normal Wear Parts. Parts coverage includes Non-Normal Wear Parts only, defined as components of the vehicle that are engineered and intended to last the useful life of the vehicle itself. See a complete definition and partial list of non-Normal Wear Parts in the Service Pack documentation.
** Normal Wear parts are defined as parts that have a limited useful life as a result of deterioration due to natural forces that act upon them under normal, everyday use. See a complete definition and partial list of Normal Wear Parts in the Service Pack documentation.
*** Service Kit is shipped separately from order.
† Shipping costs, where applicable, including return shipping and shipping for warrantied parts, are the responsibility of the customer.
† † Restocking fees apply on returned purchases and include return handling, restocking and original shipping charges and vary depending on the vehicle being returned.
‡ Premium coverage terms are inclusive of, not in addition to, manufacturer warranty terms where applicable.
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