SKU: 11203316103

Tron Nitron Helicopter Kit - 21T (w/o Blades)

Sale price$269.55 Regular price$299.50
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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27

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Description

Tron Nitron Helicopter Kit - 21T (w/o Blades)Recommend Main Blade Length: 580 610mm The Nitron 5. 5N from Tron Helicopters is a modern design that meets not only high performance goals the market demands, but unique and elegant aesthetics. It's lightweight design, of 1730 grams (3. 81lbs), aids in reducing disc loading and helping reduce crash costs by eliminating heavy elements such as boom supports from a conventional design. While light and nimble, the 5. 5N is also incredibly robust and

Recommend Main Blade Length: 580-610mm

The Nitron 5.5N from Tron Helicopters is a modern design that meets not only high performance goals the market demands, but unique and elegant aesthetics. It's lightweight design, of 1730 grams (3.81lbs), aids in reducing disc loading and helping reduce crash costs by eliminating heavy elements such as boom supports from a conventional design. While light and nimble, the 5.5N is also incredibly robust and stiff, providing pilots with a responsive model that can handle any maneuver with ease.

Overall the frame of the 5.5 is expertly thought out in regards to not only servo geometry, but wire routing as well. Simple cable routing with various options found in the design of the frames offers pilots a clean looking installation thanks to it's modern and functional design. Depending on build preferences the Nitron 5.5 can be equipped with full size servos (by default), or with mini servos.

The Nitron can be built as a 550 or 600 class helicopter, and it's performance will leave you wanting to fly tank after tank. By default with the 21T pinion, it's suggested to pair this model with 580-610mm main blades. An optional pinion of 24T would be needed to fly the model as a 550 size, and of course, pair it with a set of 550-560mm main blades. Keeping an eye on things in flight couldn't be easier either, thanks to it's high visibility canopies offered. Kits are offered with orange canopies, and pilots can purchase either green or yellow canopies as well to meet their preference on color and style. 

Features at a Glance:

  • Excellent servo geometry
  • Mini or Full Size cyclic servo options
  • Octoboom with no boom supports
  • High visibility canopies
Specifications:
Main Blade Length: 580-610mm
Tail Blade Length: 90-96mm
Motor Drive Gear: 21T
Main Drive Gear: 177T
Autorotation Tail Drive Gear: 80T
Tail Drive Gear: 19T
Drive Gear Ratio: 8:43:1:4.21
Weight (airframe only): 1730g


Needed To Complete:

  • (1) 2.4GHz Transmitter & Receiver (7-channel or more, helicopter system)
  • (1) 580-610mm Main Blades
  • (1) 90-96mm Tail Blades
  • (1) .50-.60 Nitro Engine
  • (1) Nitro Engine Exhaust
  • (3) Full Size Cyclic servos (Mini acceptable for 550 set up)
  • (1) Full Size Tail Servo 
  • (1) Full Size Throttle Servo
  • (1) 3-Axis Flybarless System
  • (1) Pitch gauge
    • Nitro Engine Fuel & Starting Accessories
    • Various tools, lubes & greases for setup and assembly

    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 11203316103

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    Elizabeth
    Cuba, US
    ★★★★★ 5
    it was a bit too hard/small for my Great Pyrenees, so it didn’t work out for my dog specifically
    Color: 1PC-Beef-Red
    is good quality and feels very durable and well made. The material is strong and holds up well against chewing, especially for aggressive chewers. It’s also a nice design and seems safe for dogs to use.
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    Reviewed in the United States on May 3, 2026
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    Debra Supeck
    Carnegie, US
    ★★★★★ 4
    Indestructible dog toy
    Color: 1PC-Beef-Red, Color: 1PC-Beef-Red
    I have an 85 lb Pitbull and he loves to chew on those kind of hard bones but the meat flavor and scent is only in the middle the knobs on the end are just plain nylon and yes it is taking him a long time to get through them but little white fibers keep coming off I find them on the couch and he nibbles and tries to eat it so I believe he's eating the nylon and still has yet to get to where the beef flavor is in the center he doesn't chew from the middle he goes from the end all of his other chew toys he has he has demolished this one not so much I only gave four stars because my dog doesn't like it so much it is a very good sturdy toy though and has a good beefy smell. And a fair price.
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    Reviewed in the United States on April 11, 2026
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    Verified Purchase
    Cf637
    San Leandro, US
    ★★★★★ 5
    Long lasting and the dogs really like them
    Color: 1PC-Beef-Red
    I purchased these over a year ago and they are still standing up to 2 heavy chewers and a medium dog.
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on June 6, 2026
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    David w.
    Bozeman, US
    ★★★★★ 5
    For aggressive chewers means just that!
    Color: 1PC-Beef-Red
    Large size means large. Very well constructed and made for the aggressive chewer I have at home.
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    Reviewed in the United States on June 11, 2026
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    Tatoani
    Natrona Heights, US
    ★★★★★ 3
    Not completely indestructible but definitely long-lasting with plastic bits everywhere
    Color: 1PC-Beef-Red
    It's destructible it just takes a long time and tons of tiny little plastic pieces everywhere and even in your dog's stomach would not recommend due to wear and tear on dog's teeth and the plastic chips off.
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    Reviewed in the United States on May 17, 2026

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