Perfect for off-road enthusiasts, the TrailMaster LK140 Pro Series Dirt Bike boasts a powerful Zhongshen 140cc 4-stroke engine that can be easily started with its innovative “ELECTRIC START” feature. With a sleek 32″ seat height and a lightweight design of only 172lbs, this mid-size dirt bike is available in a variety of colors including red, blue, green, and orange. Plus, its 4-speed manual transmission and front and rear dual disc brakes provide exceptional control, while the inverted front shock ensures a smooth ride.
The Pro-Series line offers extra premium features such as an Inverted front shock absorber, a Nitrogen air gas rear shock absorber with an aluminum linkage, a performance stainless steel muffler, alloy foldable handle levers, alloy rims and hubs, and high-quality front and rear disc brakes. This bike’s full motocross ergonomics, race suspension system, and electronic CDI ignition allow for natural handling and effortless key and kick starting. Additionally, the CDI ignition ensures a smooth ride in all gears and a broad, even power band.
Specifications
Engine System
Engine Type
Yinxiang 140cc, Single cylinder, four stroke, air-cooling /Oil-cooling
Displacement
140 ml
Max Power
6.8/7500 (1±1.5%)
Max Torque
9.7/5500（1±1.5%）
Compression Ratio
8.8:1
Shift Type
Four gear, non-circulate gear
Start Type
Electric / Kick Start
Ignition
CDI
Min. Fuel Consumption:
≤367g/kw.h
Minimum turning radius:
1900 mm
Lubricant Type #：
SF15W/40
Transmission:
Chain Drive
Size Data
Overall Size (L x W x H)
1780×740×1100 mm /69.42 x 28.86 x 42.9 Inch
Wheelbase
1210mm / 47.67 Inch
Seat Height
835mm / 32.89 Inch
Ground Clearance
340mm / 13.26 Inch
Fuel Capacity
6 L / 1.56 Gal.
Wheels
Alloy 17/ 14 Rims, Alloy Hubs
Tires
YUANXING FT: 70/100-17 – RR: 90/100-14
Frame/Suspension/Brakes
Frame
High quality Steel Frame
Front Fork
Inverted, non-Adjustable
Rear Shock
Alloy U&D connector, Non-Adjustable
Upper and Lower Connecting Board
Alloy
Handlebars
Alloy and Foldable
Front Brake
Disc
Rear Brake
Disc
Exhaust
Stainless
Packing and Loading
Packing Size
1370*440*660 mm / 53.43*17.16*25.74 Inch
N.W/LBS
78 KGS / 171.6 LBS
G.W/LBS
103 KGS / 226.6 LBS
TrailMaster LK140 Pro Series Dirt Bike, Electric Start, 4-Speed Manual, Dual Disc Brakes, (17/14) Wheels – Green
$1,599.44
Perfect for off-road enthusiasts, the TrailMaster LK140 Pro Series Dirt Bike boasts a powerful Zhongshen 140cc 4-stroke engine that can be easily started with its innovative “ELECTRIC START” feature. With a sleek 32″ seat height and a lightweight design of only 172lbs, this mid-size dirt bike is available in a variety of colors including red, blue, green, and orange. Plus, its 4-speed manual transmission and front and rear dual disc brakes provide exceptional control, while the inverted front shock ensures a smooth ride.
The Pro-Series line offers extra premium features such as an Inverted front shock absorber, a Nitrogen air gas rear shock absorber with an aluminum linkage, a performance stainless steel muffler, alloy foldable handle levers, alloy rims and hubs, and high-quality front and rear disc brakes. This bike’s full motocross ergonomics, race suspension system, and electronic CDI ignition allow for natural handling and effortless key and kick starting. Additionally, the CDI ignition ensures a smooth ride in all gears and a broad, even power band.
Specifications
Engine System
Engine Type
Yinxiang 140cc, Single cylinder, four stroke, air-cooling /Oil-cooling
Displacement
140 ml
Max Power
6.8/7500 (1±1.5%)
Max Torque
9.7/5500（1±1.5%）
Compression Ratio
8.8:1
Shift Type
Four gear, non-circulate gear
Start Type
Electric / Kick Start
Ignition
CDI
Min. Fuel Consumption:
≤367g/kw.h
Minimum turning radius:
1900 mm
Lubricant Type #：
SF15W/40
Transmission:
Chain Drive
Size Data
Overall Size (L x W x H)
1780×740×1100 mm /69.42 x 28.86 x 42.9 Inch
Wheelbase
1210mm / 47.67 Inch
Seat Height
835mm / 32.89 Inch
Ground Clearance
340mm / 13.26 Inch
Fuel Capacity
6 L / 1.56 Gal.
Wheels
Alloy 17/ 14 Rims, Alloy Hubs
Tires
YUANXING FT: 70/100-17 – RR: 90/100-14
Frame/Suspension/Brakes
Frame
High quality Steel Frame
Front Fork
Inverted, non-Adjustable
Rear Shock
Alloy U&D connector, Non-Adjustable
Upper and Lower Connecting Board
Alloy
Handlebars
Alloy and Foldable
Front Brake
Disc
Rear Brake
Disc
Exhaust
Stainless
Packing and Loading
Packing Size
1370*440*660 mm / 53.43*17.16*25.74 Inch
N.W/LBS
78 KGS / 171.6 LBS
G.W/LBS
103 KGS / 226.6 LBS
Jacob Rogers (verified owner) –
This electric dirt bike exceeded my expectations.
Nicholas Clark (verified owner) –
The bike feels balanced and easy to maneuver.
Christian Hill (verified owner) –
This electric dirt bike is surprisingly quiet but still very fast.
Ian Patterson (verified owner) –
The lack of vibration makes rides more comfortable.
Patrick Richardson (verified owner) –
This bike feels very stable at speed.
Trevor Howard (verified owner) –
The bike feels modern and well engineered.
Mark Cooper (verified owner) –
I was impressed by how smooth the throttle response is.
Andres Rojas (verified owner) –
I feel confident pushing my limits on this bike.