OS SPEED Max-B21 Nitro Engine

$359.00 USD
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O.S.

1EG00

$359.00 USD
$359.00 USD
Low stock! Only 1 left

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Product Description

The OS Speed ​​MAX-B21 is a modern 1:8 scale nitro engine , developed as the direct successor to the MAX-21 XR-B Ver.3 and MAX-21 XZ-B Ver.2 . It is specifically aimed at beginners, sporty drivers, and cost-conscious racers who value reliability, ease of use, and excellent value for money.

Based on the proven OS Speed ​​racing engine platform, the MAX-B21 combines smooth power delivery with sufficient power for competition and training. Its characteristics are deliberately designed to be easily controllable and driver-friendly , making it a convincing performer in both 1:8 buggy off-road and 1:8 GT classes .

The crankcase was further developed based on the successful OSSP-B2104 and offers an optimal balance of torque feel, throttle response, and durability. The pistons and cylinder liner are also derived from this proven platform, ensuring efficient combustion and consistent performance over long service lives.

The connecting rod used is the same as that used in the current OS Speed ​​Buggy series , which gives the MAX-B21 additional robustness and reliability in tough off-road use.

Overall, the MAX-B21 is a versatile nitro engine that combines racing DNA with everyday usability – ideal for drivers looking for a hassle-free entry or a solid, durable racing engine.

Highlights

  • 1:8 Nitro Engine for Buggy Offroad & GT
  • Successor to MAX-21 XR-B Ver.3 and MAX-21 XZ-B Ver.2
  • Very driver-friendly performance characteristics
  • Excellent value for money
  • Crankcase based on OSSP-B2104
  • Revised piston & cylinder liner from the OS Speed ​​platform
  • Connecting rod from the OS Speed ​​Buggy racing series
  • Ideal for beginners and sporty drivers
  • Suitable for racing and training, on-road and off-road

Area of ​​application

  • 1:8 Buggy Nitro Offroad
  • 1:8 GT Nitro
OS SPEED Max-B21 Nitro Engine

$359.00 USD

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