Description
Gas RC Car Rovan 5B 1/5 Scale Overview
The Gas RC car Rovan 5B is a true 1/5 scale off-road platform engineered for durability, mechanical realism, and dependable performance. Powered by a proven 29cc air-cooled two-stroke gasoline engine, this Gas RC car delivers strong low-end torque, smooth throttle response, and authentic engine sound across dirt, grass, and wide-open terrain.
Rovan builds the 5B using high-strength ABS plastic components rather than rigid aluminum. As a result, the chassis flexes under impact and recovers without transferring force, which significantly improves durability during aggressive bashing and repeated off-road use.
Chassis, Drivetrain, and Suspension
This Gas RC car uses a rear-wheel-drive layout with a rear axle brake to simplify maintenance while improving long-term reliability. In addition, a metal differential and an 8,000 RPM wear-resistant clutch manage power delivery smoothly under load.
Second-generation reinforced front and rear suspension components improve stability and durability. Moreover, 6mm shock absorbers control suspension movement and help the buggy track predictably over uneven surfaces. Second-generation wasteland tires mounted on updated wheel hubs increase traction on dirt, grass, and loose terrain.
Engine and Exhaust Performance
At the core of the Rovan 5B sits a 29cc single-cylinder, air-cooled, two-stroke gasoline engine. The tuned exhaust pipe supports efficient airflow and responsive throttle input. Therefore, acceleration remains controlled and consistent even during extended run sessions.
Electronics and Radio System
A 2.4GHz six-channel radio system provides stable signal performance and extended range, with testing exceeding 600 feet under normal conditions. Electronics draw power from a built-in SC6V 2000mAh battery for reliable runtime. Metal gear steering and throttle servos deliver precise control and durability during aggressive off-road driving.
Assembly and Operation Gas RC Car
Out of the Box: Ready to race once the wheels are installed and the car battery has been charged. A minimum two-hour charge is recommended.
Battery Charging: The car includes a charging plug and USB charger, so charging requires no disassembly. Allow the battery to cool for 30 minutes after a full charge before operation. Remove the charger within 30 minutes of reaching full charge to extend battery life. Store the battery fully charged when not in use.
Crash Durability: Minor crashes rarely cause significant damage. The chassis and suspension absorb impacts effectively during normal off-road driving.
Fuel Mixing Gas RC Car
Use a 25:1 gasoline-to-oil ratio, equal to 151.4 ml of oil per gallon of gasoline. First, fill the oil compartment of the mixing jug to the 25:1 mark. Then, fill the gasoline compartment to the same level. Use non-synthetic, mineral-based two-cycle oil. Other compatible mineral oils may also be used.
Radio Setup and Operation
This six-channel radio primarily uses two channels. Trim adjustments are located under the rear transmitter cover and control steering trim, throttle and brake trim, steering travel, and throttle travel.
Starting Instructions
Ensure the car and radio power on and respond correctly. Set the choke to the vertical closed position. Prime the carburetor three to four times, or until fuel becomes visible. Pull the starter gently until engagement, then use short, quick pulls. Once the engine fires, turn off the choke and pull again to start. Never crank more than three times with the choke engaged.
Break-In Process Gas RC Car
Initial Run: Idle to one-quarter throttle for approximately five minutes, then allow the engine to cool completely.
Second Run: Repeat the process for ten minutes, then cool down.
Third Run: Increase throttle slightly and run for eight to ten minutes, then cool.
Subsequent Runs: Continue for about five cycles while monitoring airflow and debris. A clean engine runs cooler.
Final Break-In: Run at full throttle and burn through one full tank of fuel.
Post-Break-In: Check and snug the exhaust pipe.
Before each run, inspect all bolts and fasteners. Apply thread locker to clutch and brake assembly bolts after cleaning threads with alcohol.
High-strength ABS plastic components flex and recover from impacts, making them far better suited for off-road RC use than rigid aluminum upgrades.
Disclaimer and Safety Notice
All items offered by 5TRC are brand new. Approximately 99.9 percent of customers experience no issues. If you are new to the hobby, we strongly recommend reviewing our instructional videos available on YouTube. Rofun and Rovan products sold by 5TRC are sold without warranty, express or implied. Due to the nature of the hobby, these vehicles are frequently customized or modified by end users. Accordingly, all products are sold without guarantees of any kind. These items can cause severe burns from hot exhaust components if handled improperly. Improper use may also result in serious injury or death due to impact to the operator, bystanders, or pets within the operating area. By purchasing this product, you agree to hold harmless 5TRC from any and all liability arising from the use or misuse of this product.
Product images may not accurately represent the exact color of the model purchased and are provided for illustrative purposes to display mechanical features only.
Some of our items may include links to products on Amazon. As an Amazon Associate, I earn from qualifying purchases. This means that if you click on a link to make a purchase, I may receive a small commission at no additional cost to you.
Questions? TextMail: 937-625-0005
5TRC.com, USA’s #1 Rofun Distributor
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