Convert your Honda ATC into a two-wheeler!

Convert your Honda ATC into a two-wheeler! By the staff of Dirt Wheels

If you like wheelies, you’ll love the Missile Kit. The Missile Kit is also a riot in the dunes with a good set of ATV-width sand tires.

If you were riding three-wheelers 30-plus years ago, then you’ve probably heard of the Missile Kit, which converted ATCs into a big-wheeled dirt bike. But, what you likely didn’t know is that Missile is still in business. 

Entrepreneur and three-wheeler fanatic Cadet Hoxsie bought Missile in 2020 and has been improving the product for easier installation and growing the business ever since. One of the best parts about these kits is that they can be installed by anyone with basic mechanical knowledge and standard tools in a few hours. The kit is completely bolt-on, so swapping between two and three wheels is always an option. Currently, Missile is offering the kits for the 1985–’86 ATC250R and ATC350X priced at $1,850, but they’re already expanding the product lineup with new accessories. The kits are manufactured at the Missile Kit headquarters in Sioux Falls, South Dakota.

Missile is still around and creating two-wheeled conversion kits for the 1985–’86 Honda ATC250R and 1985–’86 ATC350X, which include the rear kit and your choice of red or white rear fender.

Dirt Wheels contributor and owner of ATC Addiction David Wylie recently completed a Missile Kit conversion on a Honda 350X. “This build started off as a 1985 350X ATC, and it was in pretty decent shape—you know, a good survivor, which made it a good base for a Missile Kit,” said Wylie. The kit consists of the complete rear-end swingarm, axle and hardware, along with your choice of a red or white rear fender. “For this build, we also picked up the Missile parking-brake block-off plate ($17.95) and the Missile shifter and footpeg combo ($169), which moves the pegs 2 inches back and 2 inches down,” said Wylie. Intake airbox modifications might be necessary for suspension/wheel clearance, but Missile now offers aluminum airboxes, so you won’t have to make irreversible changes to the stock unit. “Additional modifications to this machine include a new seat cover, Moose billet-aluminum thumb throttle ($191.95) and, while you can use a stock rear ATC wheel, we went with a 9-inch DWT aluminum rear wheel ($105) mounted with a 20-inch Cheetah rear tire ($75 each, sold in pairs),” Wylie continued. “Rounder tires are better than square-edged tires for riding on two wheels.” A 22-inch tire is also an option, but will require airbox modification or the Missile airbox. Other upgrades include ATC Addiction front fork/disc guards ($149.95), a chrome Hondaline headlight guard, a replica front brake cable from Vintage Motorsports, ODI Ruffian grips ($16), and folding clutch and brake levers.

The kit uses a jackshaft with a four-sprocket/two-chain system to clear the wide rear tire. The swingarm is constructed with a traditional dirt bike-style chain-adjustment system.
The can be installed by anyone with basic mechanical knowledge and standard tools, and is completely bolt-on, so swapping between two or three wheels is always an option.

It takes some getting used to, but the Missile Kit is a ton of fun once you get the hang of it. The revised footpeg position is much more comfortable for standing, sitting and balancing on two wheels. Missile Kit-equipped Hondas are a riot in the sand dunes, especially since they accept a wider paddle tire than a traditional dirt bike. Toss a smoothie or Mohawk tire on the front wheel, and you have the ultimate compact sand machine. 


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