March 16, 2022

Ninja JX21-B06 LE Black engine

Mugen have introduced this limited edition black version of their popular Ninja JX21-B06 engine. Available in very limited quantities it is also available as a set that includes the Flash Point FP2500a muffler set. The output characteristics of the muffler offers better response across the entire range, with power in the medium-high speed range increased. As a further option you can also purchase the engine already run-in.

View an image of the complete set here

March 20, 2019

Ninja JX21-B05 offroad buggy engine

Mugen Racing have introduced their all new Ninja JX21-B05 offroad buggy engine. Featuring a 3-port long-stroke design that offers smooth low-end power and exceptional mid to top-end power, the crankcase, backplate and carburettor feature a new design. The new DLC-coated crankshaft is silicone filled and has two tungsten counterweights for smooth rotation and better balancing. The new fuel-efficient 22E carburettor is easy to tune and provides great throttle response and smooth acceleration. The B05 comes with a lightweight cooling head to provide exceptional cooling and stable operating temperatures. An o-ring between the cooling head and the combustion camber creates a better seal and reduces vibration.

View more details & images here

January 30, 2018

Baldo brothers Ninja-powered for 2018

Mugen Seiki Europe have announced the signing of Bryan and Oscar Baldo to the Ninja racing engine team for the 2018 season. The Spanish frontrunners will power their Kyosho rides with Ninja’s high-performance nitro engines this season, with their campaign will see appearances at events such as the Spanish Nationals, the EFRA Euros, the Montpellier or Neo Race.

Source: Mugen Seiki []

January 2, 2018

Robert Batlle Ninja-powered for 2018 and beyond

Following his split with 2017 engine suppliers Picco, Spanish 1/8th off-road super star Robert Batlle will run Ninja engines in 2018 and beyond. The Spaniard leaves behind a somewhat mixed season, however his 2017 campaign was crowned by a third European Championship title that he hopes to build on in 2018. Robert says:

Hello guys! I am Ninja engines driver for the upcoming years! I would like to thank Sanada San, all #mugenfamily and, of course, Stefan from MSE for believing in me for this awesome project. Since now I will represent our complete package of car/engine around the world, it motivates me a lot!

Source: Mugen []

May 11, 2017

Ninja JX21-B04 off-road buggy engine

Coming soon from Mugen Seiki is the new Ninja JX21-B04 off-road buggy engine. The power plant includes a new fuel efficient carburettor with 6.5mm aluminium reducer with the carb providing smoother, easy to drive power and increased fuel efficiency. Furthermore the B04 comes with a tungsten weighted crankshaft with DLC coating and the lightweight cooling head provides exceptional cooling and stable operating temperatures.

Source: Mugen Seiki []

May 25, 2015

Ninja JX21-B03 nitro off-road engine

Ninja JX21-B03 nitro off-road engine

Coming soon from Mugen is a new line of Ninja JX nitro engines. First up is the JX21-B03 for 1/8th nitro buggies, truggies and the up and coming nitro GT on-road class. Offering a good amount of usable power and a high fuel economy the engine features a square bore and stroke configuration, DLC-coated and balanced tuned crankshaft, a ceramic rear ball bearing for increased throttle response and a higher top speed, a light weight low-profile cooling head with laser-etched Ninja graphics, and an easy-to-tune three needle carburettor with aluminium 6.5mm venturi. The engine will become available around June or July.

Click here to view the specifications and more photos

June 15, 2011

Ninja JX21B02 off-road racing engine


Mugen USA got in touch to tell us about the new Ninja JX21B02 .21 off-road buggy and truggy nitro racing engine. The company teamed up with O.S. Engine to create a 3-port long stroke engine with a new piston/sleeve design. The long stroke creates a stronger more linear power band from low end top fuel high end speed while the redesigned crankcase and crankshaft make for better performance and higher fuel economy. The light weight cooling head is 10 fins high but it sits 8mm lower than the previous Ninja engine for a low centre of gravity.

Click here to view the features and more pictures

June 1, 2011

Ninja JXB02 buggy engine

Ninja JXB02 buggy engine

Mugen Seiki have released some images of their new upcoming Ninja JXB02 buggy engine. Expected to be available around the end of June, the engine features a new low profile light weight cooling head, which is about 8mm lower than that on the B01A. It has a new long stroke piston & sleeve, new button, a new black crankcase and carburetor, with 7mm venturi, and finally a new crankshaft with DLC treatment.

View more images here