Honda 350X ATC 3 Wheeler Specs and Review 2022

Honda 350X ATC 3 Wheeler: An avid off-roader will surely be able to recognize Honda’s 350X ATC as the model that is the most evocative of the modern-day utility vehicle, but that has three wheels rather than four.

This head-turner isn’t only an extremely capable trail vehicle but is it is also part of the legendary Big Red bikes – a part of Honda’s sport ATC range that was introduced in the 1970s. 

Honda 350X ATC 3 Wheeler


Due to its racing history and prestigious name, it will be interesting to find out what this reliable automobile offers.

From 1985 until 1986 The Honda 350X ATC (Big Red 350) was equipped with smooth brakes, grippy and slick tires, and a powerful 350-cc mid-range motor. 

It was the final installment of the famous Big Red series – a collection of trikes that were built to perform to withstand the rigors of racetracks and trails.

Its Honda 350X was only in the spotlight of off-roading during two seasons. However, no time is too short for something that is as amazing as this bike. 

Despite its inability of executing extravagant stunts and jumps as well as the requirement to have body English to fully unleash its capabilities, The 350X was an outstanding bike nevertheless. 

The most knowledgeable enthusiasts would surely think so. However, if you’re not sure this guide will educate you on the massive impact the three-wheeler has had on modern-day utilitarian vehicles.

Honda 350X ATC 3 Wheeler

The Honda Big Red 350

It is the Honda 350X ATC will be the 9th in the series of all-terrain bikes and is the 3rd Generation of Big Reds released by Japanese manufacturer Honda. 

It was first introduced in 1985. Honda 350X launched during the peak of ATC popularity, as well as other innovative machines – and held lots of potential.

Honda engineers considered racing when they were designing the development process of the trike. It turned out to be more of a sports machine rather than a racing machine. 

Because of the 1988 Consent Decree (or ATC ban), It was only on its market for two months prior to it being taken off the market. 

This meant that Honda was not given the chance to further improve the design of the machine as the industry moved toward four-wheelers.

A lot of times, it’s compared to ATC250R, it is often compared to the ATC250R, however, this Honda ATC was a bit smaller and received minimal or no enhancements in its brief production run. 

The only noticeable modifications to the wheeler were the larger carb (from 31 to 32 millimeters) and the overhaul of the oil pump.

 Everything else did not change. In addition, it was one of the few Honda ATC that wasn’t outfitted by a Pro-Link rear suspension used on its brothers which was a standard at the time to be used on Honda motorcycle racing. 

Instead, the suspension included a leading-axle fork instead of an axle that trailed.

But however, the Honda 350X had some impressive features, including nearly double the capacity of previous generations from the Big Red series. 

From its exterior, the 350X appeared like an old three-wheeled UTV taken off the cargo racks.

It was equipped with components that were between Honda’s entry-level and top-end trikes of the past which made it the perfect option for riders who are looking for a vehicle to enjoy their leisure.

Overall it’s a highly sought-after vehicle for racing and trailers with proper maintenance with performance enhancements and a competent driver.

1985 – 1986 Honda 350X Specs & Features Engine

A forward-inclined air-cooled OHC power mill sporting an 81/68 mm (3.19 2.68 inches) 2.68 inches) bore-stroke ratio with an 8.5:1 compression ratio, and a 4-valve-per-cylinder design powering the machine. 

The engine’s displacement of 350.4 cubic centimeters (21.38 in3) was generated by a 31-millimeter twin-valve Keihin carburetor. 

The engine’s configuration of the ATC lends to its 60-65 mph (97 100-105 kilometers/hour) maximum speed. a horsepower of 26.6 27 PS / hp at 7000 RPM, and the maximum torque of 29.4 Nm (3.0 kg-m, 21.7 ft-lb) @ 6000 RPM. 

Porting and adjustment of gears have been confirmed to give a top-end performance of up to 72mph (116 km/h) on flat surfaces and downhill. 

However, even after these adjustments the ATC250R still has a faster speed of 74 speeds (119 kilometers/h).

Fuel & Lubrication

It features a forceful pressure (wet sump) oil system and an oil-coated polyurethane foam air filter similar to a stage 2 UNI Air Filter Nu-4134ST (view the item on Amazon). 

The fuel tank’s capacity of 10.3 L/2.65 US gallons with a 2 L/0.53 US gallon reserve. For the best performance, choose SAE 10W-40 Honda 4-stroke oil (without molybdenum or graphite additions) as well as its alternative. 

In accordance with the ambient temperature, you can also opt for SAE 5W 10W-30, 10W-30, or 20W-40 or 20W-50 viscosity levels. 

The recommendation in the service manual is SE/SF API certified motor oil (now out of date) SJ+ API grades which meet JASO standard T903 MA could be a good alternative.

(Trivia note: For the year 1986, for the Honda 350X, the oil pump was modified to alleviate the issue of the engine running out of oil during wheelies, or being kept in a vertical or upright place. )


A six-speed continuous mesh return system, as well as a multi-plate, wet clutch assembly, provide energy to the ground. A 520-o-ring chain (with 90 links) manages wheel spin and rack-and-pinion steering systems allow the vehicle more comfortable to control and agility. 

The manual tranny comes with five-up-one-down gearshift patterns (1-N-2-3-4-5-6 left foot control). 

This combination of powertrains makes Honda 350X worthy of its sporty lineage. For those who want to bring the bike back to OEM specifications, the original gear ratios are listed below:

Primary Reduction Ratio 2.833 (68/24)
Final Drive Ratio 3.077 (40/13)
Transmission Gear Ratio (1st) 2.750 (44/16)
Transmission Gear Ratio (2nd) 2.050 (41/20)
Transmission Gear Ratio (3rd) 1.609 (37/23)
Transmission Gear Ratio (4th) 1.308 (34/26)
Transmission Gear Ratio (5th) 1.103 (32/29)
Transmission Gear Ratio (6th) 0.935 (29/31)

Ignition & Lighting

It is a complete transducer CDI (Capacitor Discharge Ignition) and an initial kick-start system. 

A 13.5 + 14.5V alternator with a nominal power of 200W at 5000 RPM acts as the trike’s charging device, and the A.C. generator powers up the lights and other electronic components (if they have any). 

The ignition timing is 10deg @ 1,400 RPM + 100 (initial “F” mark) and 30deg at 3,500 RPM + 200 (full advance). 

In addition, the bike will require an NGK DRO8ES-L spark plug or Nippon Denso’s X24ESR -U spark plug that has a 0.6 gap between it and a 0.7-millimeter gap.

In contrast to current ATVs, This particular Big Red does not come with batteries. 

If you decide to install one, first you’ll have to connect the regulator/rectifier to provide DC voltage, which will allow the installation of the battery. 

Make sure to keep the coil that powers your ignition unconnected and don’t attach with the CDI circuit with the regulator/rectifier since it gets its separate power source from the alternator that is in the stock. 

When you’re done upgrade your lamps to 12V lights that work to the regulator or rectifier. 

You can choose the YTX12-BS batteries (view the format on Amazon) format following successful updating of the electrical components in the ATC.

Honda 350X ATC

Tires & Brakes

The stock rubber is tubes that are low-pressure and tubeless 23.5 8-11 Ohtsu tires in the front, and 22 10-9 Ohtsu tires on the rear, which contribute to the Honda 350X‘s smooth and comfortable steering. 

They’re mounted on rims which can be ITP steel (91R411) or ITP aluminum (T914110) with a bolt pattern of 4/110. 

Hydraulically controlled front and rear single disc brakes round out the tire-and-wheel set-up of the Honda ATC and contribute to its outstanding stopping performance.

The recommended tire pressure for front tires can be as high as 27.6 KPa (0.28 kg/cm2 four psi) and 20.6 kPa (0.20 kg/cm2, 3psi) in the rear. 

Maxxis MU02 Zilla Bias tires (view at Amazon) are one of the top tire replacement options for enthusiasts and off-roaders since they can be used when used with the Honda 350X ATC.


The suspension system of the Honda 350X has a 203-mm telescopic frame at the front, as well as a 194-mm swingarm that has the remote reserve Showa gas shocks (rebound and compression damping adjustable) with wheels with traveling that is 8.0 inches or 7.6 inches and 7.6 inches, respectively. 

The trail length is 34.5 millimeters, with an angle of 23 degrees. The suspension is just a little off the specifications of the fabled Honda ATC250R and mounts on the frame of a semi-double-cradle made of steel.

Many had hoped that the 350X benefitted from Honda’s Pro-Link linkage system, and the company upgraded the car’s poor height of 4.7 inches (120 millimeters) to accommodate its suspension with long travel.

The ride height of 4 inches isn’t necessarily a disadvantage for the majority of drivers. However, those who travel on rock-filled trails and terrain that is bumpy not like it.


The overall dimensions for the year 1985’s Honda 350X are 74.4 x 43.9 and 42.6 inches (1,890 1 x 1,115 1 082 mm L , W and H). 

The width and length were maintained in the next year’s model, however, the height of the Honda ATC diminished by less than one millimeter (42.3 inches, or 1 075 millimeters). 

The seat height is two inches short of the ideal height for large, tall riders at 29.5 inches (750 millimeters). 

The 11.4-inch (290 millimeters) footpeg’s height helps keep the rider on the three-wheeler, thereby boosting confidence. 

In comparison to its competitors that weigh 490 pounds (222.3 Kg) on average, the three-wheeler can be classified as a lightweight within its class with a weight of 320 pounds (145 kg).


The ATC 350X frame from Honda includes mild steel tubing which is 3/4 inches thick (versus the ATC250R’s tubing that measures one-quarter inch). 

Due to this, the frame is not suitable to be used on MX tracks in its stock configuration and must be upgraded for racing applications.

As with the other ATCs within the Big Red lineup, its plastic body panels were available in blue, white, or red. It also comes with red or blue seat covers. 

Other standard features include both rear and front-facing fenders a handlebar and handgrips, two 35-watt headlights, a five-watt taillight, and an equilateral intake.

Cost of a Honda 350X

In the year of its debut at the time of its launch, the suggested price to buy the Honda 350X ATC was $2,248 and the 1985 Honda 350X was $2,498. In the basic version, an unowned model will typically cost between 360-$2,795. 

Because the series was limited to two models, and there were no trims, the variations in retail prices will depend on the improvements in performance or other features that are added.

A 350X that is restored to showroom condition will take at most $2,700 to $3,200 (on top of the value at resales). 

For those under $500, they are typically sold as parts. However, trikes valued at $2000 or more are an extremely rare find – usually in excellent working order and with minimal cosmetic damage.

Bringing Back the King

Bringing Back the King

With classic off-roaders such as those of the Honda 350X, there are only two choices for those interested in the sport either a building project which transforms the old bike into showroom-quality condition, or a full restoration that takes riders as well as viewers down memory lane.

Though not inexpensive both are major undertakings that are difficult to resist because it will mean the 350X being completely new in real life. 

If you’re ready to accept the challenge There are some items to be considered in the process:

Gusseting & Powder Coating

The lightweight steel tube is the principal reason that most riders find it not suitable for racing. 

This is why it’s an excellent idea to build up the frame by installing Gusset kits, even if you are only using them for trails. 

Be sure to replace all bearings on the frame with brand new ones in order to keep the frame from wobbling in the middle of the night. 

Also, make sure to provide the vehicle with a thorough coating of powder after the frame has been strengthened and repaired for an elegant, polished appearance.

Suspension Upgrade

Like other Honda ATCs, The valve emulators can greatly help to improve the stock suspension on the 350X. 

Since valve emulators are able to duplicate the functionality of a cartridge-type fork, they permit independent tuning of the rebound and compression circuits (with the aid of fork springs that are stiffer). 

Using high-flow valve pistons enhances the machine’s handling and resistance to bottoming. The swapping of the rear suspension to a Chromoly swingarm is suggested, but not always necessary.

Increase in Power

Although its power capacity can be sluggish, however, many owners find the headpipe that came with the car to be insufficient. 

This is why a majority of people opt for high-performance aftermarket parts for the Honda 350X to replace OEM parts that aren’t good enough. 

Some opt for professionally designed exhaust systems that increase the vehicle’s intake and increase the power band – and also have custom cylinder porting and valving performed. 

Famous racing outfitters such as CT Racing specializes in project build and will help with your needs, subject to budgetary constraints.

Pimped Up Styling

Polypropylene from the aftermarket is all the time and customers could not be more pleased. They make repairs to bodywork simpler, and ultimately give new life to vintage wheelers. 

They also increase the agility of the ATC particularly when coupled with high-quality handguards, body-matching tank shrouds the DG Performance Nerf bars (view the item on Amazon) Chromoly footpegs Professional Taper 7/8 handbags (view at Amazon), and decals.

Sometimes, modifications to the standard tire-and-wheel combination (for example, swapping the original brakes with steel-braided brake lines, or swapping to billet-center-bead lock wheels) are performed for aesthetic reasons more than for functional.

There are a variety of options available today that offer a variety of line and fitment options that allow 350X owners to customize their wheelers.

About Honda

Every great thing begins with a good idea that’s why the history of Honda Motor Company Ltd.

is not any different. In 1946, the former mechanic Soichiro Hono started producing surplus motorized bicycles and engines and eventually grew the company to become the world’s leading automotive manufacturer which it has become today. 

Honda continues to maintain its leadership position in the ATV and motorcycle industries, and even Formula 1 racing circuits. 

In addition, the array of products demonstrates the company’s passion, determination for excellence, and dedication to improving people’s lives by implementing innovations in mobility.

Conclusion – Honda 350X ATC Review

Despite being branded with its “death mobile” designation, however, the Honda 350X is safe to ride, if you are aware of what you’re doing. 

The suspension system is an issue, but it doesn’t mean power slides are less enjoyable on the three-wheeler. It actually makes the 350X a much more demanding and rewarding project. 

While it has its flaws, the 350X has demonstrated itself to be second in its class – even it is compared to other 350-cc quads. In the end, deciding to ride the renowned three-wheeler should be done with caution – it is after all the off-roading icon.

What is a Honda ATC 350X?

The model was produced from 1985 to The Honda 350X ATC (Big Red 350) had smooth brakes, grippy and slick tires, and a powerful 350cc mid-range motor. It was the last installment in the famous Big Red series – an assortment of trikes specifically designed for adrenergic tracks and trails.

How fast is a 250R Honda?

The Honda ATC250R (or Big Red 250R) was launched in 1981 and was the first model to increase the position of ATCs in the race. It was equipped with the ProLink suspension system, an Enduro Harley Davidson front look, and an impressive 70 miles per hour top speed. The ATC250R was strong and quick.

Why did Honda stop making ATC?

But they were taken out of production because of concerns about liability that stemmed from the risky vehicle–also called ATC, also known as All Terrain Cycle or ATC. When did this happen, and why were three-wheeler ATVs now banned? In the 80s, the ATV market was booming. Models such as Honda’s ATC ATV three-wheeler were increasing in popularity.

How much is a Honda ATC 70 worth?

What is the value of a Honda ATC 70 worth? The MSRP for the original 1985 model was just $549. Due to its rarity, it is now sold at prices ranging from $165 to $4,360.

What was the biggest 3 Wheeler made?

85 Honda ATC 350X 350cc. I spent ten years of off-road riding on this bike. When it was first released, it was the enormous 3-wheeler.

What is the fastest Honda ATV?

Honda TRX 700xx remains one of the most potent ATVs ever made. With its premium engine and body components, it offers the highest performance and handling, and comfort. Its top speed of 86mph, and if you alter it with upgrades, such as a sprocket with 15t and a 15t sprocket, it could reach 95 mph.

Why did Honda stop making the 250R?

Honda stopped producing the 250R due to the consent decree-law (a not widely known fact). Honda was the one who was associated with the government; other manufacturers performed “follow who is leading” Honda sacrificed Trikes and performance quads in exchange for a lower tax tariff on their cars coming to America.)

What is the top speed on a Honda 400ex?

Typically, when it is fresh out of manufacturing, the new 400 could range from 65 to 70, according to most people, settling for 68 as the typical highest speed.

How can I make my ATV more powerful?

The most efficient method to provide your ATV with more horsepower and torque is to turbocharge or boost the engine. This means that you’re creating a pathway for more air pressure to flow into the machine. This means that more fuel is burning, and your ATV will become more powerful when it is in a turbocharged engine.

What is the biggest ATV?

For those who want to master the off-roading experience at high speed, look at the new 2020 Scrambler 1000 S, which is rated the world’s largest ATV. With the 14.5-inch ground clearance and a 55-inch wide stance, there’s no need to tee over rubble, rocks, or fallen trees.

Honda 350X ATC 3 Wheeler FAQ

1. How much was a Honda 350X new?

The suggested list price of the 1985 Honda 350XATC was 2,248. The 1986 Honda 350X was at $2,498. A secondhand unit in base form would typically cost between $360 and $2,795.

2. Who made 3 wheelers?

 History. The Benz Patent Motorwagen is one of these models, and it’s considered the first purpose-built automobile. It was built in 1885.

3. Does Honda make a 3 wheel motorcycle?

Honda claims that the Neowing has “the cornering feel and sporty riding equivalent to a large-sized motorcycle while achieving excellent stability”. It will be powered by a combination of a 4-cylinder gasoline engine with an electric motor.

4. What was the first Honda 4 wheeler?

Honda introduced the FourTraxa 350 4×4 four-wheel-drive ATV in 1986. It was brought down from a helicopter for its grand unveiling. This allowed all four wheels to move under their own power. This ATV would eventually become the most popular and versatile in history.

5. Why is Honda called Big Red?

Honda refers to the Big Red as a Multipurpose Utility Vehicle. This means that it can do just about everything. We like the fact that all components are protected against corrosion, which is one of Honda’s greatest strengths.

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