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$501.99
SEMTO ENGINE ST-NF2 7.0cc Mini Inline Double-cylinder Four-stroke Air-cooled Nitro Interal Combustion Engine Model Kit (Red) — image 1
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SEMTO ENGINE ST-NF2 7.0cc Mini Inline Double-cylinder Four-stroke Air-cooled Nitro Interal Combustion Engine Model Kit (Red)

★★★★★
$501.99

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Size: SEMTO ENGINE ST-NF2
Color: Red
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About this item
  • 【Build Your SEMTO Engine Model】Enjoy the fun of DIY assembly while walking through the internal structure and mechanical function principles of a real engine. The SEMTO ENGINE ST-NF2 L2 model offers an intuitive way to explore the working principles of a mini inline double-cylinder four-stroke engine.
  • 【Wide Applications】Blending perfectly with a gearbox for superior compatibility, this engine model makes a stunning piece of mechanical artware and a superb teaching aid for demonstration in physical mechanical classes. Many of our clients are teachers from schools, making it an ideal tool for hands-on engine principle learning.
  • 【Powerful & Stable Performance】Adopts asynchronous crankshaft structure for strong power and smoother function, reaching a maximum speed of 16000rpm. The timing structure of dual synchronous belt pulleys greatly reduces the risk of gear skipping during high-speed operation, while the short rocker arm ensures precise valve switching.
  • 【Realistic Appearance & Easy Adjustment】Designed with sport elements symbolizing thunderbolt movement, the engine looks closer to a real engine with a realistic appearance. The brand-new signal carburetor allows easier adjustment and more sensitive throttle response, enhancing your mechanical exploration experience.
  • 【Perfect Gift for Mechanical Enthusiasts】Packaged in a high-end metal gift box, this desktop engine model is an ideal gift choice for mechanical engine enthusiasts on important holidays like Christmas and birthdays. It is perfect for cultivating hobbies, outdoor adventures, and hands-on learning through building and running the SEMTO engine model.
Product description

Product description Specifications: .Color: Red .Material: Metal .Brand: SEMTO ENGINE .Model: ST-NF2 .Form: Kit Version .Engine Type: Nitro Interal Combustion Engine Model .Valve Mechanism: SOHC .Displacement: 7.0 (3.5*2)cc .Cylinder: Inline Double-cylinder .Stroke: Four Stroke .Cyilinder Diameter: 16.6mm .Stroke: 17.00mm .Speed: 4000-16000rpm .Power: 0.6ps .Cooling Mode: Air Cooling .Lubrication Mode: Mixed Oil Lubrication (add grease) .Starting Mode: Electric .Ignition Mode: Ignition Modules (Not Included) .Type of Electric Plug: F-type Four-stroke Electric Plug (Not Included) .Starting Voltage: 7.4V 2S Li battery (Not Included) .Fuel Type: 20-25% Nitro Fuel .Product Dimensions: 11.2 x 9 x 9.2cm .Product Weight: 535g .Package Dimensions: 14.5 x 11 x 11.2cm .Package Weight: 1000g .Packing: Graphic Carton .Ages: 16+ Package Including .1*Engine Model Kit .1*Instructions Directions Instructions included

Product details
Brand
SpedUpX
Manufacturer
SpedUpX
Material
Metal
Colour
Red
Size
SEMTO ENGINE ST-NF2
Weight
0.54 kg
Model number
446L187Z1637TKZ
Part number
446L187Z1637TKZ
EAN
6464674412790

Customer reviews

What customers say about Bigamart

10 Trustpilot reviews total, with 2 shown at a time.

Trustpilot
★★★★★
Excellent
4.5 average rating
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S
Sigalit
đŸ‡źđŸ‡± · January 2026
★★★★★

I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.

V
Verified buyer
🇩đŸ‡ș · November 2025
★★★★★

The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.

Showing 1–2 of 10 reviews

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