SPEED R2103 radio -controlled heat engine

We are pleased to announce the new model R2103, ON-Road 1/8 racing engine. The successor of R2102 to be released in September. Features: Newly designed crankshaft and piston/liner to win the world championship in September in France (Sep 8-17). Compare to R2102, the predecessor, R2103 has more torque in low-middle range. O.S. apply steel rear ball bearing to this new model because we can get more torque with it. OS team drivers are using R2103 in the coming world championship in September.