HPI RACING A857 Gear Nitro 4944258708577 P1 RS4

( Brand: Hpi Racing ), ( Manufacturer Part Number: A857 ), ( Compatible Brand: For Hpi ), ( Type: Heavy Duty Final Gear ), ( Color: Black ), ( Compatible Fuel Type: Nitro Glow Fuel ), ( Age Level: 17 Years Up ), ( Country Of Origin: Taiwan ), ( UPC: 944258708577 )

Review HPI RACING Heavy Duty Tooth Final Gear P1 Nitro Rs4 Mt

The HPI Racing A857 13GEAR P1 13T Nitro RS4 is a high-performance 1/8th scale nitro off-road buggy designed for serious RC enthusiasts who seek ultimate speed and control. This vehicle is equipped with the latest technology and features, making it an ideal choice for those who demand the best in off-road RC racing.

The A857 Nitro RS4 boasts a 13GEAR differential system, which provides increased torque and efficiency. With thirteen gears in the final drive, this buggy delivers impressive power transfer and incredible top speeds. The 13T 2.7L Nitro Star engine, coupled with the 13GEAR differential, ensures a powerful and responsive driving experience.

The chassis of the A857 Nitro RS4 is engineered from 6061-T6 aluminum, providing exceptional strength and durability. The chassis design includes a low center of gravity for improved handling and stability. The suspension system consists of aluminum oil-filled shocks, adjustable turnbuckles, and adjustable suspension geometry. These features allow for fine-tuning to suit various track conditions and driving styles.

The tires on the HPI Racing A857 Nitro RS4 are 2.2 inches wide and made from a soft, high-traction compound. They are mounted on 17mm hex wheels, ensuring excellent grip and stability on various surfaces. The buggy also comes with a detailed and realistic race body, which is easy to install and remove for maintenance or customization.

The A857 Nitro RS4 includes a 2.4GHz radio system with a waterproof receiver, allowing for reliable and interference-free control. The radio features adjustable steering and throttle endpoints, making it suitable for drivers of all skill levels. The vehicle also includes a high-torque steering servo and a digital proportional throttle servo, ensuring precise control and responsiveness.

Additional features of the HPI Racing A857 Nitro RS4 include a large fuel tank, adjustable drag brake system, and an easy-access differential access cover. The vehicle also comes with a comprehensive instruction manual and a wide range of spare parts and accessories, making it easy for enthusiasts to maintain and upgrade their buggy.

In summary, the HPI Racing A857 13GEAR P1 13T Nitro RS4 is a high-performance, race-ready 1/8th scale nitro off-road buggy. Its powerful 13GEAR differential system, 13T 2.7L Nitro Star engine, adjustable suspension, and 2.4GHz radio system make it an ideal choice for serious RC enthusiasts seeking ultimate speed, control, and customization. With its durable aluminum chassis, high-traction tires, and comprehensive range of spare parts and accessories, the A857 Nitro RS4 is a worthy investment for anyone looking to take their RC hobby to the next level.

The HPI Racing A857 13-gear P1 13T Nitro RS4 is a high-performance 1/10th scale nitro off-road buggy. Here are some pros and cons to help you make an informed decision about purchasing this RC vehicle.

1. Powerful: The 13T 2.73cc Nitro Star Fueled engine provides a lot of power and torque, making it suitable for various racing conditions and terrains.

2. Durable: The A857 is built to last, with a robust chassis, heavy-duty suspension, and high-quality parts.

3. Adjustable: This RC car offers a wide range of adjustability, including adjustable suspension, shock positions, and camber links, allowing you to customize the handling to your preference.

4. Fast: With its powerful engine and lightweight design, the A857 can reach impressive speeds, making it a thrilling experience for RC enthusiasts.

5. Realistic: The A857 features a detailed and realistic body, as well as functioning features such as a working steering servo and adjustable wheelie bar, adding to the overall RC experience.

1. Expensive: The HPI Racing A857 is a high-performance RC vehicle, and as such, it comes with a higher price tag compared to some other RC cars in its class.

2. Requires Fuel: Nitro RC cars, including the A857, require fuel to operate, which can add to the ongoing costs of owning and running the vehicle.

3. Maintenance: Nitro RC cars require regular maintenance, including engine tuning, oil changes, and air filter replacements, which can be time-consuming and expensive.

4. Not Suitable for Indoor Use: Due to its power and size, the A857 is not suitable for indoor use and should only be operated outdoors in a large, open space.

5. Noisy: The powerful engine of the A857 can be quite loud, which may be a concern for those living in residential areas or those who prefer a quieter RC experience.

The HPI Racing A857 13-gear P1 13T Nitro RS4 is a high-performance RC vehicle that offers a lot of power, adjustability, and realism. However, it also comes with some drawbacks, including a higher price tag, the need for fuel, and regular maintenance. Ultimately, whether or not the A857 is the right RC car for you depends on your budget, experience level, and preferences. If you're looking for a powerful and realistic RC experience and don't mind the added costs and maintenance, then the A857 could be an excellent choice for you. On the other hand, if you're on a budget or prefer a quieter and more low-maintenance RC experience, then you may want to consider other options.

If you're considering purchasing the HPI Racing A857 13-gear P1 13T Nitro RS4, I would recommend doing thorough research and considering the pros and cons carefully. You may also want to consider testing the vehicle out in person if possible, to get a better sense of its handling and performance. Additionally, make sure that you have the necessary space, budget, and time to properly maintain and operate the RC car, as it requires regular attention and fuel. Overall, the A857 is a high-performance RC vehicle that offers a thrilling experience for those who are willing to invest in it.

Details:

Made in Taiwan, this black gear is compatible with 1:10 and 1:8 scales, suitable for use nitro glow fuel. The HPI A857 Heavy Duty 13 Tooth Final Gear P1 x 13T is a high-quality replacement part designed specifically for Racing vehicles, such as the NITRO 4 RS4 MT model. With its heavy-duty construction, this final gear is durable and built to last, making it an essential component for RC enthusiasts looking maintain the performance of their vehicles.

part #: a857 prices

• $10.61-$24.99

specifications rcparta:

• brand: Hpi Racing
• mpn: A857
• compatible brand: For Hpi
• type: Heavy Duty Final Gear
• color: Black
• compatible fuel type: Nitro Glow Fuel
• age level: 17 Years Up
• country of origin: Taiwan
• upc: 944258708577

seller rcparta:

• # reviews: 6743
• city: Miami, Florida
• rating: 100.0%

offer rcparta:

• quantity: 1
• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: March 22, 2026

general rcparta:

• Radio Control Control Line > RC model Vehicle Parts Accs > Other RC Parts Accs
• condition: New

payments rcparta:

• wallet: Paypal
• credit card: Visa
• other

returns rcparta:

• policy: No Returns

shipping rcparta:

• class: Standard
• service: USPS Ground Advantage
• carrier: USPS
• transit: 22-25 Days
• type: Calculated
• cost: $9.75

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