O.S. Speed R2101 Nitro Engine
For those of you looking for truly big power on-road, O.S. Engine has announced their new R2101. The R2101 is a .21 cubic inch nitro burner that should put some serious power into your 1/8th scale on-road machine. It features a DLC coated crank with pressed in weights, a 7+3 port design, and is based off the legendary 21XZ-R. * Weight- [...]