French company RB introduce their 2015 line of nitro engines for off-road and on-road applications. The range will include three .21 off-road, two .21 on-road, four .12 on-road and one Rally/GT engine, starting with the BXR LS5 Plus off-road engine. The high-level off-road competition engine uses a long stroke design with 5-port MES technology, a 14.5mm silicone-balanced lightweight crankshaft and a ceramic main bearing. The newly developed carburettor is using double adjustment with an extra spraybar for improved idling and adjustment. The new cooling head is of a low centre of gravity design yet large enough to provide efficient cooling. The BXR LS5 Plus offers a unique combination of power and consumption and the engine is ideal for both tight and open tracks with high grip and a good amount of jumps.