Trailmaster C40, 140cc, LED Head Light, 33.5 inch seat Height, Adjustable Shocks, Kick Start



The newest bikes from one of our favorite companies are the new C40, C40, and C60. For the past five years, Trailmaster has been building its outstanding dirt bike line one outstanding bike at a time.   There is a reason why they are becoming the go-to manufacturer of fun recreational bikes. 
The newest offering is the TM C40 140cc ZM Single Cylinder, 4 stroke air cooled 6.8 HP engine. Built on a twin-spar frame with attention to building quality and matched components. A dirt bike is only as good as the materials used in construction and the tolerances set by the manufacturer.  Trailmaster is quickly becoming one of the best in this class of bike.  Motobuys has been in business since 1989 and we know when a company is putting an effort into making its product to last.  The TM C40 is one of those products.
At only 200 lbs. this bike has a great power-to-weight ratio.  The four Speed manual transmission is geared to max cruising power.  This bike comes with color-matched frame components, a ribbed seat, and adjustable suspension.  


  • Powerful 4 stroke oil cooled 140ml, 9 HP engine
  • Kickstart, 4-speed manual clutch
  • 49.8“ wheelbase and 33.5” seat high
  • 735mm Inverted Hydraulic Forks
  • 310mm Spring Pre-load None-Adjustable Shock
  • Front tire 17”/Rear Tire 14”
  • LED Headlight
  • TrailMaster Ribbed Seat

CA customers: this item is NOT CARB approved, but you may use on your private land.

Technical spec

Engine System

Engine Type

ZM-Single Cylinder, 4-Stroke, Oil Cooling


140 ml

Max Power

7.2(1±10%)/8500(1±5%) kw/r/min

Max Torque

9.5(1±10%)/6000(1±5%) N.m/r/min

Compression Ratio


Bore and Stroke

56 x 57 (mm×mm)

Shift Type

N-1-2-3-4, Four-Gear Manual Shift

Start Type

Kick Start



Min. Fuel Consumpetion:


Engine Oil #:



Chain Drive; #428 & 110L Chain,14/41T

Size Data

Overall Size (L x W x H)


Wheel Base

49.8″ (1265MM)

Seat Height

33.5″ (850MM)

Ground Clearance

13″ (330MM)

Fuel Capacity

4.5 L/1.2 Gal.


FT: 70/100-17 – RR: 90/100-14 Knobby tires


Steel 1.6 x 17″ / 1.85 x 14″ Rims, DCA Hubs



Frame/Suspension/Brake system/More features


Twin Girders  Steel Tube Frame

Front Fork

Inverted 45*48-735mm Forks, Non-Adjustable

Rear Shock

¢10*¢11*310mm ,Spring Per-load


Steel Tube 14inch

Handle Bar

Steel  Crossbar ,L=720mm; Dia=22mm

Front Brake

Hydraulic Twin Piston Caliper, 220mm Disc

Rear Brake

Hydraulic Single Piston Caliper, 190mm Disc


Steel Pipe with catalyst converter(EPA Standard)

Brake & Clutch Lever



Ribbed TrailMaster Seat



Packing and Loading

Packing Size(inch)

62.6×14.8×29.9 inch


172 LBS


203 LBS