Product Name : PT21A1-XB2G
Product Description

The Power of the 2023 FEMCA 1/8 Nitro Off-Road TQ and A Main Champions Ignites a New Era of Discussion.

Introducing the world's first C.W.C. design, which revolutionizes conventional engines with groundbreaking low-to-mid-range torque and horsepower!


Maximizing engine power in the low-to-mid-range has been a challenge that leading engine manufacturers have tirelessly worked to overcome. Golden Lion Enterprise Co., Ltd. (SH ENGINE), a company that has always pursued extreme challenges as its development policy, has proposed an unprecedented and exclusive global technology concept – C.W.C. (Changing the Working Angle of the Connecting Rod).


The PT21A1-XB2G, which utilizes the C.W.C. design, made its debut in the 2023 FEMCA 1/8 Nitro Off-Road international competition and claimed the highest honors of TQ and A Group Champion. Its performance on the track validated the C.W.C.'s revolutionary design, which achieves breakthrough low-to-mid-range torque and horsepower by changing the working angle of the connecting rod. We believe that this will also become a new topic in the era of innovative technology that competitors will strive to emulate.


The PT21A1-XB2G is the culmination of all of SH ENGINE highest technology and precision manufacturing capabilities, achieving peak performance beyond conventional engines. If you want to stay ahead, come and try it out! Its powerful torque is available at any moment, and with its superior maneuverability on the track, it will be your absolute advantage in combat - the C.W.C. design...PT21A1-XB2G!


PT21A1-XB2G Specification

Cubic Capacity







36000 rpm