O.S. SPEED B21 Adam Drake Edition 3 is developed in collaboration with
O.S. international team driver ADAM DRAKE, who is famous for his deep
knowledge and sound technical advice.
By adopting..
O.S.SPEED's off-road racing engine has evolved further. The 4th
generation of the B21 series, the "B2104" has improved low-speed
response as a result of securing the power to gain an advantage in ..
O.S.SPEED's off-road racing engine has evolved further. The 4th
generation of the B21 series, the "B2104" has improved low-speed
response as a result of securing the power to gain an advantage in ..
