SMP MRX-5 lightweight 2-speed axle
Swiss company SMP Racing have released this ultra lightweight 2-speed gearbox axle for the Mugen MRX-5. Made from titanium it is very strong and to increase durability the surface has also been hard coated. To achieve the weight of 25 grams, the centre of the axle has also been drilled out.
Source: SMP [smp-slide.ch]